CN101872183B - Unit programmable logic controller - Google Patents

Abstract

The invention relates to a unit programmable logic controller which relieves the load of a basic unit and is connected to a multifunctional expanding unit. A plurality of expanding units (400) are orderly connected backwards in a medium unit (300) having a frame part (310) and a bridge part (320) and are arranged on left end of a basic unit (100A) having a CPU substrate (110A) inside, wherein an adapter connector (111a) arranged on the CPU substrate (110A) is connected to a second adapter as a limited specification of the expanding units (400) or a first preceding connector and a second preceding connector arranged at the bridge part (320); the first preceding connector (322) is connected to the expanding units (400) through a backwards connector (312) hidden in the frame part (310); and the first adaptor is superposed on the second preceding connector (323).

Description

Unit programmable logic controller

Technical field

The present invention relates to a kind of unit programmable logic controller that does not have panel form; This unit programmable logic controller keeps the elementary cell of microprocessor and sets up the unit with the input and output that are connected with this elementary cell in connecting, also mix to connect to have multiple function expansion unit.

Background technology

In keep microprocessor, carry out corresponding to the operating state of the input signal of operating switch and various sensors etc. and the sequential programme that is stored in program storage in the unit programmable logic controller of drive controlling of electrical loads such as various actuators and display device; Except the common ON/OFF input and output of correspondence are controlled; For in requisition for the input and output of simulating signal, communication various uses with the specific functions such as input and output of the input and output of serial signal or high-speed pulse signal; It is very important having the function expanding device corresponding with it, thereby exists the unit programmable logic controller of various practical forms.

Especially; Do not have in the unit programmable logic controller of panel form; The input-output unit that on a side end face of elementary cell, connects ON/OFF control usefulness; On the end face of opposite side, connect the expanded function unit and cut down the radical that connects pulse signal-line, and shorten the distribution length of extending from microprocessor.

For example; In " unit programmable logic controller " that following patent documentation 1 is disclosed; Unit programmable logic controller comprises basic basket unit; This basic basket unit take in have microprocessor, with the CPU substrate of the device memory of the program storage of this microprocessor cooperation and memory device information; Unit programmable logic controller comprises the input/output interface circuit substrate in addition; This input/output interface circuit substrate is built in aforementioned basic basket unit at least or is built in sets up the basket unit on first endface position that is arranged on aforementioned basic basket unit; And be connected with aforementioned microprocessor; On second endface position of aforementioned basic basket unit, be provided with different first expansion connector and second expansion connectors of function system that connects with microprocessor side by side; On aforementioned first expansion connector or second expansion connector, can select to connect the first expanded function substrate be built in the first expansion basket unit or be built in the second expanded function substrate of the second expansion basket unit; The aforementioned first expanded function substrate comprises first matching connector and the second matching connector both sides that are connected with second expansion connector with first expansion connector of being located at aforementioned basic basket unit with a side in the second expanded function substrate; The aforementioned first expanded function substrate and the second expanded function substrate are when shared, and the opposing party in the aforementioned first expanded function substrate and the second expanded function substrate is connected with basic basket unit with a side in the second expanded function substrate through the aforementioned first expanded function substrate.

Consequently; Do not have in the unit programmable logic controller of motherboard; Except the input and output that first endface position with basic basket unit is connected are set up the basket unit; Can also select to connect expanded function basket not of the same race in second endface position of basic basket unit, therefore can realize the function expansion of Programmable Logic Controller with the structure reply purposes of small inexpensive with various specific functions.

Especially, classify according to mutually different signal kinds in advance, can utilize few signal wire number to select to use multiple expanded function through the first expansion basket unit, the second expansion basket unit.In addition; In the aforementioned second expanded function substrate; Second matching connector that is connected with aforementioned second expansion connector and the second transfer expansion connector that is connected with this second matching connector are located at the peripheral end of the aforementioned second expanded function substrate; Relative with it; First matching connector that is connected with aforementioned first expansion connector and the first transfer expansion connector that is connected with this first matching connector are set in parallel near the position central authorities of the aforementioned second expanded function substrate, in the inside of second endface position of aforementioned basic basket unit, keep the transfer communication substrate.On said transfer communication substrate, be provided with a plurality of communication ports of being located at said microprocessor in serial communication interface circuit, the outside communications connector that connects usefulness of the line driver receiver that is connected of a side; In addition, also be provided with aforementioned first expansion connector that is connected with the opposing party's communication port.Aforementioned transfer communication substrate is to select to be equipped on the inner communication by simple means in aforementioned basic basket unit to use substrate, has outside wiring length and lacks, can the communication by simple means function be selected to be installed to the characteristic in the basic basket unit easily.

Patent documentation 1: Japanese Patent Laid is opened 2006-330805 communique (Fig. 2, summary, paragraph [0066] and Fig. 8)

In the unit programmable logic controller of aforementioned patent document 1; On the bus that prolongs about basic basket unit, be connected with input-output unit and various special function unit; When shortening its length of stretching out and improving noise immunity from basic basket unit; The function system of special function unit is roughly divided, done one's utmost to cut down the bus that special function unit is used, and form and to select use or also with the connection form of the signal wire of multiple special function unit.In addition, can also built-in transfer communication substrate in the inside of basic basket unit.But; In the general service that does not need special function unit; The binding substrate that is connected with the CPU substrate, flat cable, the middle transglutaminase substrate and the connector that are connected with this binding substrate are unwanted devices, have elementary cell to become to have the shortcoming of large-scale, the price apparatus of superfluous idle parts.In addition,, also need middle transglutaminase substrate be replaced with the transfer communication substrate even if when not utilizing special function unit to carry out the short-range serial communication in the opertaing device, exist the operability difference and since in discarded transglutaminase substrate produce the problem of waste.

Summary of the invention

The present invention does for solving the problems of the technologies described above; It is major premise in minimum limit that its purpose is to provide a kind of idle unit control that will always be located at elementary cell when not needing specific function, and the specific function of the qualification specification that can reply needs is selected the unit programmable logic controller of the adapter of equipment small inexpensive.

In addition, the present invention also aims to provide a kind of carries out the form a social stratum of specific function and connects upper function expansion unit and can increase the unit programmable logic controller that can connect the platform number so that can replace aforementioned adapter.

In addition, the present invention also aims to provide a kind of carry out the differential of specific function in case the adapter of the classification that can not substitute by aforementioned expanding element can with the unit programmable logic controller of expanding element and usefulness.

The unit programmable logic controller that the present invention relates to is a core with the elementary cell of taking in the CPU substrate; Said CPU substrate have microprocessor, with the program storage of this microprocessor cooperation and the device memory of memory device information; Said unit programmable logic controller has to load and is used to connect the input and output substrate of circuit block that aforementioned microprocessor and ON/OFF are controlled the outside input-output device of usefulness; Said input and output substrate is built in said elementary cell or is built in the end face that is arranged on said elementary cell one side is the unit of setting up on first endface position; Promptly can be provided for the medium unit of the different expanding element of linkage function system on second endface position at the end face of the opposite side of said elementary cell, expanding element is connected with aforementioned microprocessor.Aforementioned expanding element has and is used for front and back level binding connector that a plurality of expanding elements are connected with back level successively, can connect more than one kind in the following three kinds of kinds more than 1, and these three kinds of kinds are: carry out the communication unit of serial communication with external unit; Analog input unit or simulation output unit; High-speed counting unit or high-speed pulse output unit on aforementioned CPU substrate, can be configured on the approaching position of aforementioned second endface position with one or more adapter connectors that are connected as first kind of adapter selecting component or second kind of adapter.

Aforementioned first kind of adapter comprises at least one side in transmitting and storing adapter and the simple and easy setting display adapter; Said transmitting and storing adapter is used for to aforementioned program storage transmission procedure; Said simple and easy setting display adapter is used to keep watch on operating state and the display action state of aforementioned microprocessor or writes and set the control constant to aforementioned device memory; Aforementioned second kind of adapter is the simple type special adapter of using as substituting of expanding element based on the qualification specification; Comprise at least a in following three kinds of adapters, these three kinds of adapters are respectively: carry out the communication adapter of serial communication with external unit; Analog input adapter or simulation o adapter; High-speed counting adapter or high-speed pulse o adapter.

Aforementioned medium unit partly is made up of the basket part and the pontic of mutual binding; Aforementioned pontic part parallel is configured in the top of aforementioned CPU substrate; In keep the prime connector that is connected with aforementioned adapter connector; Aforementioned basket part and the parallel configuration of second end face of aforementioned elementary cell, the built-in back level connector that connects aforementioned expanding element that is useful on, aforementioned prime connector is interconnected by cable with back level connector.

Aforementioned prime connector is made up of the first prime connector and the second prime connector; The said first prime connector is connected with the aforementioned adapter connector of being located at aforementioned CPU substrate; The said second prime connector is located at the back position of the said first prime connector; Be used to make that aforementioned first kind of adapter is range upon range of is installed on said pontic part; Said prime connector can select to connect aforementioned second kind of adapter or aforementioned expanding element on aforementioned adapter connector, and can and with in aforementioned first kind of adapter at least one.

Unit programmable logic controller of the present invention adopts following structure: be provided with the adapter connector that is used to connect first kind of adapter or second kind of adapter on the CPU substrate of elementary cell being built in; Comprise the expanding element that is connected with second endface position of elementary cell through medium unit in addition; Aforementioned medium unit comprises the first prime connector, the second prime connector that is connected with aforementioned adapter connecting connector; Back level connector through utilizing cable to be connected with this first prime connector can connect aforementioned expanding element, can connect aforementioned first kind of adapter through the aforementioned second prime connector in addition.

Therefore; Be used in the ON/OFF control of only carrying out input and output and when not needing the purposes of other specific functions, have only the adapter connector to become idle member at Programmable Logic Controller, other superfluous redundant member all goes out of use; Thereby can obtain the Programmable Logic Controller of small inexpensive; In addition, through selecting to install the adapter of small inexpensive as required, can tackle easily the purposes of the specific function that is fit to the qualification specification.

Especially; Use expanding element and when using medium unit simultaneously, medium unit is connected with the adapter connector of being located at the CPU substrate always at needs, even if when needing expanding element and first kind of adapter; Also can connect first kind of adapter through the second prime connector of medium unit; Therefore the elementary cell side need not appended connector, only need be provided with always the adapter connecting connector just can and with expanding element and first kind of adapter, can obtain the Programmable Logic Controller of small inexpensive.

Above-mentioned and other the object of the invention, characteristic, effect can be clear and definite from the record of the detailed description of following embodiment and accompanying drawing.

Description of drawings

Fig. 1 is the structure outside drawing of the Programmable Logic Controller of embodiment of the present invention 1.

Fig. 2 is the figure of syndeton of printed board of the Programmable Logic Controller of expression embodiment of the present invention 1.

Fig. 3 is the vertical view and the cut-open view of an example of the stepped construction of the adapter of expression in the embodiment of the present invention 1.

Fig. 4 is another the routine vertical view and the cut-open view of the stepped construction of the adapter in the expression embodiment of the present invention 1.

Fig. 5 is the vertical view of the CPU substrate in the embodiment of the present invention 1.

Fig. 6 is the vertical view of the elementary cell in the embodiment of the present invention 1.

Fig. 7 is the structural drawing of the medium unit in the embodiment of the present invention 1.

Fig. 8 is first exploded view of details of the medium unit of expression embodiment of the present invention 1.

Fig. 9 is second exploded view of details of the medium unit of expression embodiment of the present invention 1.

Figure 10 is the structure outside drawing of the Programmable Logic Controller of embodiment of the present invention 2.

Figure 11 is the cut-open view of syndeton of printed board of the Programmable Logic Controller of expression embodiment of the present invention 2.

Figure 12 is the vertical view of the CPU substrate in the embodiment of the present invention 2.

Figure 13 is the vertical view of the elementary cell of embodiment of the present invention 2.

Figure 14 is the cut-away view of elementary cell of the Programmable Logic Controller of embodiment of the present invention 2.

Embodiment

Below, with reference to the Programmable Logic Controller of description of drawings embodiment of the present invention.In addition, same-sign is represented identical or considerable part among each figure.

Embodiment 1

Fig. 1 is the structure outside drawing of the Programmable Logic Controller in the expression embodiment of the present invention 1, and Fig. 2 is the figure of the syndeton of expression printed board.

Among Fig. 1, Fig. 2, elementary cell 100A comprises: the bottom surface is mounted on the basic housing member 106A of wall and the basic cap member 105A that is mounted on the peristome of this basic housing member.The inside assembling of basic housing member 106A is fixed with: be mounted with the power supply board 130A of constant voltage supply circuit parts 131A and be mounted with input/output interface circuit parts 121A and the input/output terminal daughter board 123A of ON/OFF control usefulness, the input and output substrate 120A of 124A (with reference to Fig. 3, Fig. 4).The inside assembling of basic cap member 105A is fixed with CPU substrate 110A, and CPU substrate 110A, input and output substrate 120A and power supply board 130A are connected through board connector 122,132 each other.On CPU substrate 110A, be mounted with not shown microprocessor, with the program storage of this microprocessor cooperation and the electronic devices and components such as device memory of memory device information; In addition; External tool connector 112a, 112b that states after always being provided with among the first adapter connector 111a, the second adapter connector 111b, Fig. 5 and the battery connector 114 that is used to connect battery 113, battery 113 are to select to equip for the store status of the maintenance device memory that has a power failure.

First endface position (right side of Fig. 1) of elementary cell 100A be connected with corresponding input and output count scale the platform number set up unit 200.Set up and keep input and output substrate 201 in the unit 200; This input and output substrate 201 is mounted with input/output interface circuit parts 221, input/output terminal daughter board 203 and sets up an end of cable 202 and it is interconnected, and the other end of setting up cable 202 is connected with the connector of setting up of input and output substrate 120A in being located at elementary cell 100A.But subordinate connects a plurality ofly sets up setting up cable 202 and being located at prime and setting up the connector of the interior input and output substrate 201 in unit 200 and be connected of unit 200.Setting up unit 200 has the unit of setting up that input is special-purpose, export special use or input and output mixing, and when the distribution of counting of needed input and output was unequal, use imported special use or exported the special-purpose unit of setting up more.

Second endface position (left side of Fig. 1) at elementary cell 100A is connected with different many expanding elements 400 of function system through medium unit 300.

After among Fig. 7, state, medium unit 300 comprises that the top with basket part 310 connects to the pontic part 320 of freely rotating, and is provided with the first prime connector 322 and the second prime connector 323 that are loaded into intermediary substrate 321 in the inside of pontic part 320.In addition; Be provided with intermediary substrate 311 and the back level connector 312 that is loaded into this intermediary substrate 311 in the inside of basket part 310, the back level connector 312 of basket part 310 is connected with the first adapter connector 111a of CPU substrate 110A with the first prime connector 322 through the intermediary substrate 321 of intermediary substrate 311, flat cable 301, pontic part 320.

The transmitting and storing adapter 140 of first kind of adapter of conduct of after range upon range of setting of ability on the second prime connector 323 of being located at the first prime connector, 322 back positions, stating.

In addition, on intermediary substrate 321,311, be mounted with not shown interface circuit parts, be mounted with the matching connector of the dismounting connector 302 (with reference to Fig. 9) of being located at flat cable 301 two ends in addition.

In expanding element 400, be provided with the expansion that is mounted with not shown electronic circuit component and expansion input/output terminal daughter board 403 and set up substrate 401.

This expansion is set up substrate 401 and is comprised that in addition a front and back level that is used for a plurality of expanding elements 400 are connected with back level successively links connector 402, and the front and back level of elementary expanding element 400 links connector 402 and is connected with back grade of connector 312 of medium unit 300.

In the expanding element 400, communication unit, analog input unit or the simulation output unit etc. that carry out serial communication with external unit are arranged as the first serial expanding element.In addition, in the expanding element 400, high-speed counting unit or high-speed pulse output unit etc. are arranged as the expanding element of second series.

The back level connector 312 of medium unit 300 also can be divided into two connectors by corresponding first expanding element serial and second series.In order to improve noise immunity, these expanding elements 400 comprise the light insulator chain of input distribution or output distribution (below be generically and collectively referred to as the input and output distribution), become to be applicable to the high standard device that carries out signal and communication with the outer input-output device of control device.

When on elementary cell 100A, also not using medium unit 300 with expanding element 400, can connection layout 3 on the first adapter connector 111a, the second adapter connector 111b, second kind of adapter 160,170 of stating after among Fig. 4.

This second kind of adapter the 160, the 170th, the simple type special adapter of using as substituting of expanding element 400 based on the qualification specification; It can be the communication adapter that carries out serial communication with external unit; Can be analog input adapter or simulation o adapter, also can be kinds such as high-speed counting adapter or high-speed pulse o adapter.

In addition; Second kind of adapter 160,170 do not have the insulator chain of input/output signal line; Be applicable to the purposes of input and output distribution, and comprise input and output connector 164 or the input/output terminal daughter board 174 that is connected with the signal wiring of input and output external unit as the short distance distribution in the control device.

In addition; Second kind of adapter 160,170 also comprises the back level connector 163,173 that is used for prime connector 162,172 that is connected with adapter connector 111a, 111b and the back position of being located at this prime connector, on this back level connector 163,173, can pile up to connect first kind of adapter 140,150.

Then, Fig. 3, the Fig. 4 to expression adapter stacked structure example describes.

In addition, among Fig. 3 second kind of adapter of connector I/O mode 160 and extension storage adapter 140 as first kind of adapter are piled up, also can use second kind of adapter 170 of terminal strip I/O mode shown in Figure 4 as second kind of adapter.

In addition; Pile up with second kind of adapter 170 of terminal strip I/O mode with as the simple and easy setting display adapter 150 of first kind of adapter among Fig. 4, also can use second kind of adapter 160 of connector I/O mode shown in Figure 3 as second kind of adapter.

In addition; Can not use first kind of adapter 140,150 and only use second kind of adapter 160,170; Also can not use second kind of adapter 160,170 and only use first kind of adapter 140,150; In the embodiment 1 of Fig. 1, simple and easy setting display adapter 150 necessarily is used in the second adapter connector 111b side.

Among Fig. 3 (A) and Fig. 3 (B) as the vertical view that piles up adapter as cut-open view; Keep substrate 161 in second kind of adapter 160 of connector I/O mode, on this substrate, be mounted with: the prime connector 162 that is connected with the first adapter connector 111a that is located at CPU substrate 110A, the back level connector 163 of being located at these prime connector 162 back positions, the input and output connector 164 that is connected with input distribution or output distribution and not shown input/output interface circuit parts.

Keep substrate 141 in the transmitting and storing adapter 140 as the first kind of adapter that does not have the input and output distribution, on substrate 141, be mounted with: the interface circuit of display 145 such as nonvolatile memory such as connector 142, not shown eeprom memory or the flash memory that is connected with the back level connector 163 of second kind of adapter 160 and LED and operating key 146.

In addition; The connector 142 of transmitting and storing adapter 140 can directly not be connected with the first adapter connector 111a of CPU substrate 110A via second kind of adapter 160 yet; With second kind of adapter 160 and time spent, remove and downcut the space of part 144 to guarantee that input and output connector 164 is outstanding.

In addition, gib screw 143 runs through transmitting and storing adapter 140 and second kind of adapter 160, on the top board wall 190A of the part of the basic cap member 105A that is tightened at elementary cell 100A.

Soldering has substrate-side terminal 123a on one side of input and output substrate 120A, thereby dismounting side terminal 123b is through the synthetic dismantled and assembled formation input end daughter board 123A of not shown contact junction.

Soldering has substrate-side terminal 124a on the another side of input and output substrate 120A, thereby dismounting side terminal 124b is through the synthetic dismantled and assembled formation output terminal daughter board 124A of not shown contact junction.

Among Fig. 4 (A) and Fig. 4 (B) as the vertical view that piles up adapter as cut-open view; Keep substrate 171 in second kind of adapter 170 of terminal strip I/O mode, on substrate 171, be mounted with: the back level connector 173 of the prime connector 172 that is connected with the second adapter connector 111b that is located at CPU substrate 110A, the back position of being located at this prime connector, the input/output terminal daughter board 174 that is connected with input distribution or output distribution and not shown input/output interface circuit parts.

Keep substrate 151 in the simple and easy setting display adapter 150 as the first kind of adapter that does not have the input and output distribution, on this substrate 151, be mounted with: the interface circuit parts of connector 152 that is connected with the back level connector 173 of second kind of adapter 170 and display 155, operating key 156.In addition; The connector 152 of simple and easy setting display adapter 150 can directly not be connected with the second adapter connector 111b of CPU substrate 110A via second kind of adapter 170 yet; With second kind of adapter 170 and time spent, remove and downcut the space of part 154 to guarantee that input/output terminal daughter board 174 is outstanding.

In addition, gib screw 175 runs through second kind of adapter 170, on the top board wall 190A of the part of the basic cap member 105A that is tightened at elementary cell 100A.

Then, to describing as Fig. 5 of the vertical view of CPU substrate with as Fig. 6 of the vertical view of elementary cell.Among Fig. 5, Fig. 6,, input and output are provided with the first adapter connector 111a and the second adapter connector 111b on counting the bigger elementary cell 100A of scale.With second endface position (left side of Fig. 5) position adjacent of elementary cell 100A on for example be provided with according to the external tool connector 112a of communication standard RS422 with according to the external tool connector 112b of communication standard USB; Externally be connected with not shown setting display unit on the tool connector 112a always or in good time, externally be connected with not shown personal computer on the tool connector 112b in good time as programming tool as human interface devices.Operation/stop button 115 is used for to the program storage transmission procedure time, stops the input and output control of microprocessor.The simulation potentiometer (Japanese: ア Na ロ グ ボ リ ユ one system) the 116th, for example be provided with for the setting value that makes the operator easily adjust the specific timing device; When desiring to carry out the adjustment of more timer; As a kind of first kind of adapter, can append the potentiometer adapter that for example has 8 simulation potentiometers.

When have a power failure keeping the store status of device memory at least, selecting equipment for example is the battery 113 of lithium battery, when program storage is the RAM storer, battery 113 is set always, utilizes battery connector 114 to append equipment or safeguards and change.

External tool connector 112a, 112b, operation/stop button 115 and simulation potentiometer 116 are covered by first cap member 101, can open first cap member 101 in good time and carry out operations necessary.

The position of the first adapter connector 111a is covered by second cap member 102; When connecting the pontic part 320 of transmitting and storing adapter 140 as first kind of adapter, second kind of adapter 160,170 or medium unit 300 at this place, second cap member 102 goes out of use.

The position of the second adapter connector 111b, battery 113 and battery connector 114 is covered by the 3rd cap member 103; Connect second kind of adapter 160,170 o'clock at this place; The discarded main cap member 103a that constitutes the 3rd cap member 103 stays auxiliary cap member 103b.

Too, but when only connecting simple and easy setting display adapter 150 not using second kind of adapter 160,170, the 3rd cap member 103 integral body go out of use when second kind of adapter, 160,170 laminated are provided with simple and easy setting display adapter 150.

In addition; The 3rd cap member 103 adopts the insert structure that slit is set can be divided into main cap member 103a and auxiliary cap member 103b; Perhaps also can be used as standby and prepare auxiliary cap member 103b, pay attention to appearance design and the 3rd cap member 103 is formed indivisible structure.

Then, to describing as Fig. 7 of the structural drawing of medium unit with as Fig. 8, Fig. 9 of the stereographic map of rotating part.Fig. 7 (A) is the outside drawing of bale packing packed state that the basket part of medium unit 300 310 and pontic part 320 is upright, and basket part 310 is made up of a pair of basket housing member 310a, the 310b that take in aforementioned intermediary substrate 311.

Fig. 7 (C) is the outside drawing with basket part 310 with the assembling user mode of pontic part 320 quadratures of medium unit 300.Fig. 7 (B) is the outside drawing of the intermediateness of presentation graphs 7 (A) and Fig. 7 (C).Fig. 8 is the exploded perspective view that basket part 310 is lain at the state in left side.Fig. 9 is the exploded perspective view that basket part 310 is lain at the state on right side.

Among Fig. 7, Fig. 8, the outstanding a pair of second support plate 314a, the 314b that is provided with a pair of first support plate 313a, 313b and is located at its outside, both sides on the upper surface of the basket housing member 310a adjacent with second endface position of elementary cell 100A.Be provided with a pair of U word groove in that support plate 313a, 313b are last, be provided with a pair of receiving hole in that the second support plate 314a, 314b are last.

The coupling member 324a, the 324b that take in the pontic part 320 of intermediary substrate 321 are integrally formed; As shown in Figure 8; The a pair of fulcrum of being located at this coupling member leading section is chimeric with the U word groove of being located at support plate 313a, 313b, and the peristome of this U word groove is located at jut 315a, the 315b sealing of basket housing member 310b.

The shutter door member 330 that substitutes as aforesaid first cap member 101 among Fig. 6 has quadrature end face 331a, 331b, and it is chimeric with a pair of receiving hole of being located at the second support plate 314a, 314b to protrude the second not shown fulcrum that is arranged at this quadrature end face.

Said second fulcrum and receiving hole can be located at the either side among the second support plate 314a, 314b and quadrature end face 331a, the 331b; When making second fulcrum and receiving hole chimeric; Make the flat cover body portion elastic bending of the shutter door member 330 that connects quadrature end face 331a, 331b, insert by force and accomplish assembling.

In addition, shown in Fig. 7 (C), shutter door member 330 has the excision part 332 of being carved with slit 333 on two limits, and this excision local 332 is equivalent to the position that disposes external tool connector 112a, 112b shown in Figure 5.

When the user will excise local 332 excisions as required, will excise local 332 cut-outs after shutter door member 330 temporarily taken off, then make the flat cover body portion elastic bending of shutter door member 330, second fulcrum and receiving hole are cooperated by force and accomplish assembling.

Among Fig. 9; The intermediary substrate 311 that is connected at basket housing member 310a constitutes with the flexible base, board of the flat cable 301 of being located at the intermediary substrate 321 (with reference to Fig. 1) in the pontic part 320 by the flat strip that is pasted with many signal line, and two ends are provided with dismounting connector 302.Many places on this flexible base, board are provided with the not outstanding 303a of ear of pair of right and left and 303b, 304a and the 304b of paste signal line, route guidance wall 316a and 316b, 317a and 317b location that this outstanding ear is constituted by the housing member by medium unit 300.

Then illustration, action.

The Programmable Logic Controller 10A that constitutes as stated includes only elementary cell 100A; Or as comprise elementary cell 100A, set up unit 200, the system of medium unit 300 and expanding element 400 and constituting; Even if under the situation that includes only elementary cell 100A; Also can and with any side in first kind of adapter 140,150 and the second kind of adapter 160,170, to tackle various uses.The elemental motion of Programmable Logic Controller 10A is: the microprocessor that is built in elementary cell 100A carries out the drive controlling of electrical loads such as various actuators and display device corresponding to the operating state of the input signal of action button of importing from input/output terminal daughter board 123A, 203 and various sensors etc. and the sequential programme that is accommodated in program storage through input/output terminal daughter board 124A, 203.

Be built in the input and output substrate that the input and output substrate 120A of elementary cell 100A uses the input and output of corresponding control scale to count usually, count or export when counting deficiency, can set up and use input special-purpose or output is special-purpose sets up unit 200 when input.

But also built-in input/output interface circuit in elementary cell 100A not makes all input/output signals set up unit 200 input and output through a plurality of.

Expanding element 400 is to expand as required to connect; For example Programmable Logic Controller is as the production equipment of certain product and use; Need not set up unit 200 and expanding element 400 in the initial equipment, but with the enhancing of production equipment, sometimes these become must and set up, expand.Even if just use expanding element 400 at first, be not that various function expansion unit is used all yet, but the expanding element of the specific function that the selection use needs.

In a word, elementary cell 100A has the degree of freedom that can tackle these various demands, need delete useless standard facility function in addition, adopts small-sized and cheap structure.

In addition; Expanding element 400 can be outside control device distribution; Provide that allow to connect the platform number be many regular expanded function; Relative therewith, second kind of adapter 160,170 provides the simple and easy expanded function based on the small inexpensive that limits specification, can construct the low cost system of selecting degree of freedom further to improve.

On the other hand, Programmable Logic Controller also needs and can be connected with the external tool as programmable device and man-machine interface except the expanded function of needs aforesaid reply input and output control and specific use.Programming tool as one of external tool has: be connected with external tool connector 112b and write the program transfer function of io control program and be used to make the debugging of io control program to become to the program storage of being located at CPU substrate 110A and be easy to force on etc.

In addition, have in the programming tool programming tool through using personal computer on picture, to process precedence diagram to programme automatically, based on the small, dedicated programming tool of instruction word etc.

Relative therewith; Transmitting and storing adapter 140 is not have the final user of programming tool can change the program medium parts of io control program easily; The advanced programming instrument provides regular facilitating functions, and is relative with it, and transmitting and storing adapter 140 provides simple and easy facilitating functions.

Specifically; Write io control program from programming tool in advance in the nonvolatile memory in transmitting and storing adapter 140; When making the transmitting and storing adapter 140 that has write be connected in the back pressing operation key 146 with the first adapter connector 111a, the io control program that writes in the transmitting and storing adapter 140 is transferred to the program storage that is loaded into CPU substrate 110A.

Therefore, for the terminal user who does not have external tool, when wanting to change control program, will just can carry out transmission process at the scene easily with transmitting and storing adapter 140 mailing of change program.

On the other hand; Make when being in the transmitting and storing adapter 140 of write state and not being connected in the back pressing operation key 146 another with the first adapter connector 111a, the io control program that writes the program storage that is loaded into CPU substrate 110A is transferred to transmitting and storing adapter 140.

Setting display device as other important external tools is connected with external tool connector 112a; Have be used for Supervision Loading in the operating state of the microprocessor of CPU substrate 110A and show various device memory operating state, write and set the human-machine interface function of control constant to device memory, set device that display device has a panel of always being located at opertaing device and the mancarried device that is connected with the panel of opertaing device in good time.

The setting display device that is connected with external tool connector 112a has the device of the large-scale picture that uses touch panel and uses the device of the numerical value display frame etc. of a plurality of operating keys, and regular facilitating functions is provided.

Relative therewith, simple and easy setting display adapter 150 provides the simple and easy facilitating functions of little display frame and few operating key combination.

In a word, first kind of adapter 140,150 is corresponding with external tool, and the simple and easy facilitating functions of small inexpensive is provided, external tool with external tool connector 112a, 112b is connected and have regular facilitating functions.

In addition, second kind of adapter 160,170 with connect through medium unit 300 and to have an expanding element 400 of regular expanded function corresponding, the simple and easy facilitating functions of small inexpensive is provided.

In addition; In expanding element 400 and the second kind of adapter 160,170; About high-speed counting unit or high-speed pulse output unit as the device of aforementioned second series, the ON/OFF control of being located at elementary cell 100A capable of using with input and output terminal standard facility in elementary cell 100A.At this moment, for example for 8 input variable filtering circuit is set, when using as general input with this, as the wave filter of number msec, when input was used as high-speed counting, the filter constant that corresponding input pulse frequency changes to the short time used.In addition, for example 8 output can realize high-speed pulse output through the transistor output form that adopts high speed motion in advance.

Can know by above explanation; The unit programmable logic controller 10A of embodiment of the present invention 1 is a core with the elementary cell 100A that takes in the CPU substrate; Said CPU substrate have microprocessor, with the program storage of this microprocessor cooperation and the device memory of memory device information; Said unit programmable logic controller 10A has the input and output substrate 120A, 201 of the circuit block that is mounted with the outside input-output device that is used to connect aforementioned microprocessor and ON/OFF control usefulness; Said input and output substrate is built in said elementary cell; Or be built in be arranged on said elementary cell one side end face promptly first endface position set up unit 200; Promptly can be provided for the medium unit 300 of the different expanding element of linkage function system 400 on second endface position at the end face of the opposite side of said elementary cell 100A, expanding element 400 is connected with aforementioned microprocessor.

Aforementioned expanding element 400 has and is used for front and back level binding connector 402 that a plurality of expanding elements 400 are connected with back level successively; Can connect more than one kind in the following three kinds of kinds more than 1, these three kinds of kinds are: carry out the communication unit of serial communication with external unit; Analog input unit or simulation output unit; High-speed counting unit or high-speed pulse output unit.

On aforementioned CPU substrate 110A, be provided with first kind of adapter 140,150 or second kind of 2 adapter connector 111a, 111b that adapter 160,170 is connected that can select component with conduct, this adapter connecting connector is configured on the position near second endface position always.Aforementioned first kind of adapter comprises at least one side in transmitting and storing adapter 140 and the simple and easy setting display adapter 150; Transmitting and storing adapter 140 is used for to aforementioned program storage transmission procedure; Simple and easy setting display adapter 150 is used to keep watch on the operating state and the display action state of aforementioned microprocessor, or writes and set the control constant to aforementioned device memory.

Aforementioned second kind of adapter the 160, the 170th, the simple type special adapter of using as substituting of expanding element 400 based on the qualification specification; At least comprise a kind of in following three kinds of adapters, these three kinds of adapters are respectively: carry out the communication adapter of serial communication with external unit; Analog input adapter or simulation o adapter; High-speed counting adapter or high-speed pulse o adapter.

Aforementioned medium unit 300 is made up of basket part of mutual binding 310 and pontic part 320, the aforementioned pontic part 320 parallel tops that are configured in aforementioned CPU substrate 110A, in keep the prime connector 322,323 that is connected with aforementioned adapter connector 111a.

Aforementioned basket part 310 and the parallel configuration of second end face of aforementioned elementary cell 100A, the built-in back level connector 312 that connects aforementioned expanding element 400 that is useful on, aforementioned prime connector 322 is interconnected by flat cable 301 with back level connector 312.

Aforementioned prime connector is made up of the first prime connector 322 and the second prime connector 323; The said first prime connector 322 is connected with the aforementioned adapter connector 111a that is located at aforementioned CPU substrate 110A; The said second prime connector 323 is located at the back position of the said first prime connector; Be used to make that aforementioned first kind of adapter 140 lamination are overlapping is installed on aforementioned pontic part 320; Can on aforementioned adapter connector 111a, select to connect aforementioned second kind of adapter 160,170 or aforementioned expanding element 400, and can be also with aforementioned first kind of adapter 140.

Therefore; Programmable Logic Controller is used in the ON/OFF control of only carrying out input and output and when not needing the purposes of other specific functions, the adapter connector becomes idle member, and other superfluous redundant member all goes out of use; Thereby can obtain the Programmable Logic Controller of small inexpensive; In addition, through selecting to install the adapter of small inexpensive as required, can tackle easily the purposes of the specific function that is fit to the qualification specification.

Especially; When also using medium unit at needs use expanding element; Medium unit is connected with adapter connecting connector on being located at the CPU substrate always, even if when needing expanding element and first kind of adapter, also can connect first kind of adapter through the second prime connector of medium unit; Therefore; The elementary cell side need not appended connector, only need be provided with always the adapter connecting connector just can and with expanding element and first kind of adapter, can obtain the Programmable Logic Controller of small inexpensive.

In addition; Aforementioned first kind of adapter 140,150 is except that through aforementioned adapter connector 111a, 111b and aforementioned microprocessor is connected; The signal wiring that does not have the input and output external unit; Relative therewith, aforementioned second kind of adapter 160,170 is connected with aforementioned microprocessor through aforementioned adapter connector 111a, 111b, in addition; Have the input and output connector 164 or the input/output terminal daughter board 174 that are connected with the signal wiring of input and output external unit; In addition, aforementioned second kind of adapter 160,170 also comprises the back level connector 163,173 that is used for prime connector 162,172 that is connected with aforementioned adapter connector 111a, 111b and the back position of being located at this prime connector, can connect aforementioned first kind of adapter 140,150 in aforementioned back level connector 163,173 laminated.

Therefore, has the characteristic that to utilize an adapter connector being located at the CPU substrate to use first kind of adapter and second kind of adapter simultaneously.

In addition; Aforementioned second kind of adapter 160,170 do not have the insulator chain of input/output signal line; Being applicable to should be as the purposes of the short-range distribution in the opertaing device with the input and output distribution; Relative therewith, keep the light insulation component of input/output signal distribution in the aforementioned expanding element 400, be applicable to that also the input and output distribution is as the purposes of the length inside and outside cloth and the opertaing device apart from distribution.

Therefore; Has following characteristic: compare with second kind of adapter and be not only applicable to length apart from distribution; Even if be located at the few adapter connector of the number of CPU substrate, also can utilize the front and back level binding connector in the expanding element that a plurality of expanding elements are connected successively.

In addition, on aforementioned CPU substrate 110A, be provided with external tool connector 112a, 112b, this external tool connector is configured on the second endface position position adjacent with aforementioned elementary cell 100A.The said external instrument has the program transfer function that writes io control program to aforementioned program storage; Perhaps have the operating state that is used to keep watch on aforementioned microprocessor and display action state, write the setting Presentation Function of control constant to aforementioned device memory; The said external instrument is connected with aforementioned elementary cell 100A in good time or connects always; Show when using external tool being provided with to set always, need be as the simple and easy setting display adapter 150 of aforementioned first kind of adapter.

Aforementioned adapter connector 111a, 111b and said external tool connector 112a, 112b disposed adjacent; But be configured in than on this position of external tool connector away from aforementioned second endface position; One end of the pontic part 320 of aforementioned medium unit 300 is mounted to freely with respect to basket part 310 and rotates; In addition, on this medium unit 300, be provided with the shutter door member 330 of said external tool connector 112a, 112b.Therefore; Has following characteristic: connecting on the adapter connector under the state of medium unit, can connect external tool through the shutter door member is opened and closed, in addition; When being located at the plug of adapter connector of the first prime connector and CPU substrate-side of medium unit; Because from the distance of the fulcrum of pontic part, therefore can suppress to result from the stress of the connecting pin of connector through oblique plug, can carry out the plug of adapter connector easily.

In addition, on aforementioned shutter door member 330, be provided with and be used to cut off slit 333 corresponding to the part 332 of external tool connector 112a, 112b.Therefore; Also has following characteristic: when being provided with always and using external tool; Owing to can under the state that is connecting the external tool connecting connector, shutter door be fastened in advance, so shutter door can also be also used as the for example lid of other functional units such as operation/shutdown switch and simulation potentiometer.

The basket part 310 of aforementioned medium unit 300 is made up of interior a pair of basket housing member 310a, the 310b that keeps intermediary substrate 311; On intermediary substrate 311, be provided with back the level connector 312 and the dismounting connector 302 that is connected with an end of aforementioned flat cable 301 that are used to connect aforementioned expanding element 400; On the basket housing member 310a of a side of aforementioned a pair of basket housing member, be provided with and be used for aforementioned pontic part 320 is mounted to free to rotate and has a pair of support plate 313a, the 313b of U word groove; To be located at a pair of fulcrum insertion of aforementioned pontic part 320 with respect to this U word groove after, utilize the basket housing member 310b of opposite side that U word peristome is sealed.Therefore, also has following characteristic: can avoid because the accidents such as the damage flat cable that comes off of pontic part obtain the good medium unit of installing and removing of operability.

In addition, on the basket housing member 310a of a side of aforementioned a pair of basket housing member, also be provided with a pair of second support plate 314a, 314b in the outside of a pair of support plate 313a that is used to support aforementioned pontic part 320,313b.Be provided with and protrude the quadrature end face 331a that is located at aforementioned shutter door member 300, the chimeric a pair of receiving hole of second fulcrum of 331b in that the aforementioned second support plate 314a, 314b are last, or be provided with and run through the quadrature end face 331a that is located at aforementioned shutter door member 300, the second chimeric fulcrum of a pair of receiving hole of 331b.

Aforementioned shutter door member 300 cooperates aforementioned second fulcrum and aforementioned receiving hole by force and realizes assembling through making the flat cover body portion elastic bending of the aforementioned quadrature end face 331a of connection, 331b.

Therefore, the shutter door member has following characteristic: can unload as required, in addition owing at ordinary times by the supporting of second support plate, therefore can not have the situation of losing as the shutter door member of little parts.

In addition; The prime connector 322 of being located at the pontic part 320 of aforementioned medium unit 300 is connected through the flat cable 301 that two ends have dismounting connector 302 with the back level connector 312 of being located at basket part 310, and aforementioned flat cable 301 is made up of the flexible base, board of the flat strip that is pasted with many signal line.

Many places on aforementioned flexible base, board are provided with the not outstanding 303a of ear of pair of right and left, 303b, 304a, the 304b of paste signal line, the route guidance wall 316a that this outstanding ear is constituted by the housing member by medium unit 300,316b, 317a, 317b location.

Therefore, have following characteristic: can prevent the opening and closing operations with the pontic part, flexible cable moves in housing, thereby signal wire contacts the generation of the situation of broken string with adjacent component.

In addition, aforementioned elementary cell 100A comprises that the bottom surface is mounted on the basic housing member 106A and the basic cap member 105A that is mounted on the peristome of this basic housing member of wall.

Assembling is fixed with in the inside of aforementioned basic housing member 106A: be mounted with the power supply board 130A of constant voltage supply circuit parts 131A and be mounted with input/output interface circuit parts 121A and the input/output terminal daughter board 123A of aforementioned ON/OFF control usefulness, the input and output substrate 120A of 124A.

Be fixed with aforementioned CPU substrate 110A in the assembling of the inside of aforementioned basic cap member 105A, aforementioned CPU substrate 110A, input and output substrate 120A and power supply board 130A are connected through board connector 122,132 each other.

On aforementioned CPU substrate 110A, be provided with: said external tool connector 112a, 112b, the first adapter connector 111a, the second adapter connector 111b and the battery connector 114 that is used to connect battery 113 always; Aforementioned battery 113 is to select to equip for the store status of the maintenance aforementioned device storer that has a power failure at least; On aforementioned basic cap member 105A, be equipped with: first cap member 101 that covers said external tool connector 112a, 112b position; Cover second cap member 102 at the aforementioned first adapter connector 111a position, and the 3rd cap member 103 that covers aforementioned second adapter connector 111b position and battery connector 114 positions.

When aforementioned simple and easy setting display adapter 150 directly is connected with the aforementioned second adapter connector 111b; Discard aforementioned the 3rd cap member 103 and this adapter is installed; When aforementioned transmitting and storing adapter 140 or second kind of adapter 160,170 are connected with the aforementioned first adapter connector 111a, discarded aforementioned second cap member 102 and connect this adapter.

When aforementioned second kind of adapter 160,170 is connected with the aforementioned second adapter connector 111b; Discard aforementioned the 3rd cap member 103 and connect this adapter; Utilize auxiliary cap member to cover aforementioned battery connector 114 positions in addition; When with respect to aforementioned second kind of adapter 160,170 is range upon range of simple and easy setting display adapter 150 being set, former state is used aforementioned auxiliary cap member.

Therefore; Have following characteristic: multipotency uses 4 kinds of various adapters, in addition, utilizes the second adapter connector position and battery connector position; Make that the size of simple and easy setting display adapter is bigger than the size of other adapters, the display that is easy to observe can be set.

In addition; During on aforementioned elementary cell 100A and with aforementioned medium unit 300; Discarded aforementioned first cap member 101 and second cap member 102; Utilize the shutter door member 330 of aforementioned medium unit 300 to cover said external tool connector 112a, 112b and the first adapter connector 111a with pontic part 320; When the transmitting and storing adapter of installing as aforementioned first kind of adapter 140, it is connected with the second prime connector 323 of the pontic part 320 of being located at aforementioned medium unit 300, and aforementioned simple and easy setting display adapter 150 is connected with the aforementioned second adapter connector 111b side.

Therefore, have following characteristic: the pontic part of medium unit can adopt the structure of small inexpensive.

Embodiment 2

With the difference with Fig. 1, Fig. 2 is the center, to describing as Figure 10 of the structure outside drawing of the unit programmable logic controller 10B of embodiment of the present invention 2 with as Figure 11 of cut-open view.In addition, same-sign is represented identical or considerable part among each figure.

Among Figure 10, Figure 11, elementary cell 100B comprises: the bottom surface is mounted on the basic housing member 106B of wall and the basic cap member 105B that is mounted on the peristome of this basic housing member.

Be fixed with in the assembling of the inside of basic housing member 106B: be mounted with the power supply board 130B of constant voltage supply circuit parts 131B and be mounted with input/output interface circuit parts 121B and the input/output terminal daughter board 123B of ON/OFF control usefulness, the input and output substrate 120B of 124B.

Be fixed with CPU substrate 110B in the assembling of the inside of basic cap member 105B, CPU substrate 110B, input and output substrate 120B and power supply board 130B are connected through board connector 122,132 each other.

On CPU substrate 110B, be mounted with not shown microprocessor, with the program storage of this microprocessor cooperation and the electronic devices and components such as device memory of memory device information; In addition; External tool connector 112a, 112b that states after always being provided with among adapter connector 111a, Figure 12 and the battery connector 114 that is used to connect battery 113, battery 113 are to select to equip for the store status of the maintenance device memory that has a power failure.

First endface position (right side of Figure 10) of elementary cell 100B be connected with corresponding input and output count scale the platform number set up unit 200.Set up and keep input and output substrate 201 in the unit 200; On this input and output substrate 201, be mounted with input/output interface circuit parts 221, input/output terminal daughter board 203 and set up an end of cable 202 and it is interconnected, the other end of setting up cable 202 is connected with the connector of setting up of input and output substrate 120B in being located at elementary cell 100B.

But subordinate connects a plurality ofly sets up setting up cable 202 and being located at prime and setting up the connector of the interior input and output substrate 201 in unit 200 and be connected of unit 200.Setting up unit 200 has the unit of setting up that input is special-purpose, export special use or input and output mixing, and when the distribution of counting of needed input and output was unequal, use imported special use or exported the special-purpose unit of setting up more.

Second endface position (left side of Figure 10) at elementary cell 100B is connected with the different expanding element of function system 400 through medium unit 300.

Aforementioned like Fig. 7, medium unit 300 comprises that the top with basket part 310 connects to the pontic part 320 that can freely rotate, is provided with the first prime connector 322 and the second prime connector 323 that is loaded into intermediary substrate 321 in the inside of pontic part 320.In addition; Be provided with the back level connector 312 that is loaded into intermediary substrate 311 in the inside of basket part 310, the back level connector 312 of basket part 310 is connected with the adapter connector 111a of CPU substrate 110B with the first prime connector 322 through the intermediary substrate 321 of intermediary substrate 311, flat cable 301, pontic part 320.

Can range upon range of transmitting and storing adapter 140 or the simple and easy setting display adapter 150 that is provided with aforesaid as first kind of adapter on the second prime connector 323 of being located at the first prime connector, 322 back positions.

In addition, on intermediary substrate 321,311, be mounted with not shown interface circuit parts, be mounted with the matching connector of the dismounting connector 302 (with reference to Fig. 9) of being located at flat cable 301 two ends in addition.

In expanding element 400, be provided with the expansion that is mounted with not shown electronic circuit component and expansion input/output terminal daughter board 403 and set up substrate 401.

This expansion is set up substrate 401 and is comprised that in addition a front and back level that is used for a plurality of expanding elements 400 are connected with back level successively links connector 402, and the front and back level of elementary expanding element 400 links connector 402 and is connected with back grade of connector 312 of medium unit 300.

In the expanding element 400, communication unit, analog input unit or the simulation output unit etc. that carry out serial communication with external unit are arranged as the first serial expanding element.In addition, in the expanding element 400, high-speed counting unit or high-speed pulse output unit etc. are arranged as the expanding element of second series.

The back level connector 312 of medium unit 300 also can be divided into two connectors by corresponding first expanding element serial and second series.

In order to improve noise immunity, these expanding elements 400 comprise the light insulator chain of input distribution or output distribution (below be generically and collectively referred to as the input and output distribution), become to be applicable to the high standard device that carries out signal and communication with the outer input-output device of control device.

When on elementary cell 100B, also not using medium unit 300, on adapter connector 111, can link aforesaid second kind of adapter 160,170 among Fig. 3, Fig. 4 with expanding element 400.

This second kind of adapter the 160, the 170th, the simple type special adapter of using as substituting of expanding element 400 based on the qualification specification; It can be the communication adapter that carries out serial communication with external unit; Can be analog input adapter or simulation o adapter, also can be kinds such as high-speed counting adapter or high-speed pulse o adapter.

In addition; Second kind of adapter 160,170 do not have the insulator chain of input/output signal line; Be applicable to the purposes of input and output distribution, and comprise connector 164 or the terminal strip 174 that is connected with the signal wiring of input and output external unit as the short distance distribution in the control device.

In addition; Second kind of adapter 160,170 also comprises: be used for the back level connector 163,173 of prime connector 162,172 that is connected with adapter connector 111 and the back position of being located at this prime connector, and can first kind of adapter of range upon range of connection 140,150 on this back level connector 163,173.

Then, to describing as Figure 12 of the vertical view of CPU substrate with as Figure 13 of the vertical view of elementary cell.

Among Figure 12, Figure 13,, input and output only are provided with an adapter connector 111 on counting the less elementary cell 100B of scale.

With second endface position (left side of Figure 12) position adjacent of elementary cell 100B on; For example be provided with according to the external tool connector 112a of communication standard RS422 with according to the external tool connector 112b of communication standard USB; Externally be connected with not shown setting display unit on the tool connector 112a always or in good time, externally be connected with not shown personal computer on the tool connector 112b in good time as programming tool as human interface devices.

Operation/stop button 115 is used for to the program storage transmission procedure time, stops the input and output control of microprocessor.

Simulation potentiometer 116 is for example to be provided with for the setting value that makes the operator easily adjust the specific timing device; When desiring to carry out the adjustment of more timer; As a kind of first kind of adapter, can append the potentiometer adapter of the simulation potentiometer that for example has at 8.

When have a power failure keeping the store status of device memory at least, selecting equipment for example is the battery 113 of lithium battery, when program storage is the RAM storer, battery 113 is set always, utilizes battery connector 114 to append equipment or safeguards and change.

External tool connector 112a, 112b, operation/stop button 115 and simulation potentiometer 116 are covered by first cap member 101, can open first cap member 101 in good time and carry out operations necessary.The position of adapter connector 111, battery 113 and battery connector 114 is covered by the 3rd cap member 103; Connect medium unit 300 and second kind of adapter 160,170 o'clock at this place; The discarded main cap member 103a that constitutes the 3rd cap member 103 stays auxiliary cap member 103b.

When second kind of adapter, 160,170 laminated are provided with simple and easy setting display adapter 150; And when medium unit 300 laminated are provided with transmitting and storing adapter 140 with simple and easy setting display adapter 150 too; But when not using medium unit 300 only to be connected simple and easy setting display adapter 150 with second kind of adapter 160,170, the 3rd cap member 103 integral body go out of use.

In addition; The 3rd cap member 103 adopts the insert structure that slit is set can be divided into main cap member 103a and auxiliary cap member 103b; Perhaps prepare auxiliary cap member 103b, pay attention to appearance design and the 3rd cap member 103 is formed indivisible structure as standby.

Then, the Figure 14 as the cut-away view of elementary cell is described.

Among Figure 14, on the bottom surface of basic housing member 106B, be tightened through substrate gib screw 139 and load the power supply board 130B of constant voltage supply circuit parts 131B.

These constant voltage supply circuit parts 131B obtains the voltage of AC (interchange) 100～250V from the power supply that is connected with not shown input end daughter board 123B (with reference to Fig. 3, Fig. 4); Stabilization voltages such as DC (direct current) 24V of generation insulation, DC5V are supplied power to being loaded into the input/output interface circuit parts 121B of input and output substrate 120B, the microprocessor that is loaded into CPU substrate 110B, program storage and device memory through board connector 132,122.

Input and output substrate 120B is after pushing embedded hole 107a, 107b and the location of inserting the first end-face wall 106a be located at basic housing parts 106B, the second end-face wall 106b, utilizes substrate gib screw 129 to be tightened with respect to basic housing parts 106B.

In addition; Formation is pressed into inclined- plane 108a, 108b on the top of embedded hole 107a, 107b; The teat of input and output substrate 120B is pushed this and is pressed into inclined- plane 108a, 108b; Make the first end-face wall 106a, the second end-face wall 106b elastic deformation of basic housing parts 106B and separate insertion embedded hole 107a, 107b.

On the top board wall 190B of basic cap member 105B; Utilize the substrate gib screw 119 CPU substrate 110B that has been tightened; The teat of 3 sides of CPU substrate 110B is embedded in the location slit 191 on the wall of 3 sides that are located at basic cap member 105B, and a remaining side is chimeric with the slit 109 of the second end-face wall 106b that is located at basic housing member 106B.Thus, the interval of input and output substrate 120B and CPU substrate 110B is stable, can prevent the loss of board connector 122 when elementary cell 100B is arranged on the place of vibration.

The fixing means of power supply board 130A under the situation of elementary cell 100A shown in Figure 2, input and output substrate 120A, CPU substrate 110A is also identical.

Then illustration, action.

The Programmable Logic Controller 10B that constitutes as stated is made up of separately elementary cell 100B; Or as comprising the integral body of the expanding element 400 of setting up unit 200, medium unit 300 and constituting; Even if under the situation that constitutes separately by elementary cell 100B; Also can and with the arbitrary side in first kind of adapter 140,150, or and with the arbitrary side in second kind of adapter 160,170, to tackle various uses.

The elemental motion of Programmable Logic Controller 10B is: the microprocessor that is built in elementary cell 100B utilizes input/output terminal daughter board 124B, 203 to carry out the drive controlling of electrical loads such as various actuators and display device corresponding to the operating state of the input signal of action button of importing from input/output terminal daughter board 123B, 203 and various sensors etc. and the sequential programme that is accommodated in program storage.

Be built in the input and output substrate that the input and output substrate 120B of elementary cell 100B uses the input and output of corresponding control scale to count usually, count or export when counting deficiency, can set up and use input special-purpose or output is special-purpose sets up unit 200 when input.

But also built-in input/output interface circuit in elementary cell 100B not makes all input/output signals set up unit 200 input and output through a plurality of.

Use an expanding element 400 with multiple kind or and during with many expanding elements 400, second kind of adapter 160,170 goes out of use, and replaces second kind of adapter 160,170 and installation medium unit 300.

Transmitting and storing adapter 140 or simple and easy setting display adapter 150 as first kind of adapter can be installed on the pontic part 320 of medium unit 300; Under temporary transient state with dump; It all is possible being modified to simple and easy setting display adapter 150 or being modified to transmitting and storing adapter 140 from simple and easy setting display adapter 150 from transmitting and storing adapter 140, on reality is used, does not have big obstacle.

In addition; Also can only be provided with among external tool connector 112a, the 112b any one; Be transformed into a plurality of external tool connectors of distinct communication standards signal in the outer setting of elementary cell 100B; Not use programming tool simultaneously and to set under the situation of display unit as prerequisite, also 1 external tool connector can only be set, this also is identical for elementary cell 100A.

Can know by above explanation; The unit programmable logic controller 10B of embodiment of the present invention 2 is a core with the elementary cell 100B that takes in the CPU substrate; Said CPU substrate have microprocessor, with the program storage of this microprocessor cooperation and the device memory of memory device information; Said unit programmable logic controller 100B has the input and output substrate 120B, 201 of the circuit block that is mounted with the outside input-output device that is used to connect aforementioned microprocessor and ON/OFF control usefulness; Said input and output substrate is built in said elementary cell; Or be built in the end face that is arranged on said elementary cell one side and promptly set up unit 200 on first endface position; Promptly can be provided for the medium unit 300 of the different expanding element of linkage function system 400 on second endface position at the end face of the opposite side of said elementary cell 100B, expanding element 400 is connected with aforementioned microprocessor.

Aforementioned expanding element 400 has and is used for front and back level binding connector 402 that a plurality of expanding elements 400 are connected with back level successively; Can connect more than one kind in the following three kinds of kinds more than 1, these three kinds of kinds are: carry out the communication unit of serial communication with external unit; Analog input unit or simulation output unit; High-speed counting unit or high-speed pulse output unit.

On aforementioned CPU substrate 110B, be provided with first kind of adapter 140,150 or second kind of 1 the adapter connector 111 that adapter 160,170 is connected that can select component with conduct, this adapter connecting connector is configured on the position near second endface position always.Aforementioned first kind of adapter comprises at least one side in transmitting and storing adapter 140 and the simple and easy setting display adapter 150; Transmitting and storing adapter 140 is used for to aforementioned program storage transmission procedure; Simple and easy setting display adapter 150 is used to keep watch on the operating state and the display action state of aforementioned microprocessor, or writes and set the control constant to aforementioned device memory.

Aforementioned second kind of adapter the 160, the 170th, the simple type special adapter of using as substituting of expanding element 400 based on the qualification specification; Comprise at least a in following three kinds of adapters, these three kinds of adapters are respectively: carry out the communication adapter of serial communication with external unit; Analog input adapter or simulation o adapter; High-speed counting adapter or high-speed pulse o adapter.

Aforementioned medium unit 300 is made up of basket part of mutual binding 310 and pontic part 320, the aforementioned pontic part 320 parallel tops that are configured in aforementioned CPU substrate 110B, in keep the prime connector 322,323 that is connected with aforementioned adapter connector 111.

Aforementioned basket part 310 and the parallel configuration of second end face of aforementioned elementary cell 100B, the built-in back level connector 312 that connects aforementioned expanding element 400 that is useful on, aforementioned prime connector 322 is interconnected by flat cable 301 with back level connector 312.

Aforementioned prime connector is made up of the first prime connector 322 and the second prime connector 323; The said first prime connector 322 is connected with the aforementioned adapter connector 111 of being located at aforementioned CPU substrate 110B; The said second prime connector 323 is located at the back position of the said first prime connector; Be used to make that aforementioned first kind of adapter, 140,150 laminations are overlapping is installed on aforementioned pontic part 320; Can on aforementioned adapter connector 111, select to connect aforementioned second kind of adapter 160,170 or aforementioned expanding element 400, and can be also with aforementioned first kind of adapter 140,150.

On aforementioned CPU substrate 110B, be provided with external tool connector 112a, 112b, this external tool connector is configured on the second endface position position adjacent with aforementioned elementary cell 100B.The said external instrument has the program transfer function that writes io control program to aforementioned program storage; Perhaps have the operating state that is used to keep watch on aforementioned microprocessor and display action state, write and set the setting Presentation Function of control constant to aforementioned device memory; The said external instrument is connected with aforementioned elementary cell 100B in good time or connects always; Show when using external tool being provided with to set always, need be as the simple and easy setting display adapter 150 of aforementioned first kind of adapter.

Aforementioned adapter connector 111 and said external tool connector 112a, 112b disposed adjacent; But be configured in than on this position of external tool connector away from aforementioned second endface position; One end of the pontic part 320 of aforementioned medium unit 300 is mounted to respect to basket part 310 and freely rotates; In addition, on this medium unit, be provided with the shutter door member 330 of said external tool connector 112a, 112b.

Aforementioned elementary cell 100B comprises: the bottom surface is mounted on the basic housing member 106B of wall and the basic cap member 105B that is mounted on the peristome of this basic housing member.

Assembling is fixed with in the inside of aforementioned basic housing member 106B: be mounted with the power supply board 130B of constant voltage supply circuit parts 131B and be mounted with input/output interface circuit parts 121B and the input/output terminal daughter board 123B of aforementioned ON/OFF control usefulness, the input and output substrate 120B of 124B.

Be fixed with aforementioned CPU substrate 110B in the assembling of the inside of aforementioned basic cap member 105B, aforementioned CPU substrate 110B, input and output substrate 120B and power supply board 130B are connected through board connector 122,132 each other.

The battery connector 114 that on aforementioned CPU substrate 110B, is provided with said external tool connector 112a, 112b, 1 adapter connector 111 always and is used to connect battery 113, battery 113 are to select to equip for the store status of the maintenance device memory that has a power failure at least.On aforementioned basic cap member 105B, be equipped with: cover first cap member 101 at said external tool connector 112a, 112b position and cover aforementioned adapter connector 111 positions and the 3rd cap member 103 at battery connector 114 positions.

When directly connecting aforementioned simple and easy setting display adapter 150; Discarded aforementioned the 3rd cap member 103 made this adapter be connected with aforementioned adapter connector 111, the aforementioned transmitting and storing adapter 140 of connection or second kind of adapter 160,170 o'clock; Discarded aforementioned the 3rd cap member 103; This adapter is connected with adapter connector 111, in addition, auxiliary cap member is installed on the position of aforementioned battery connector 114; When aforementioned second kind of adapter, 160,170 laminated are provided with simple and easy setting display adapter 150, can in statu quo use aforementioned auxiliary cap member.

Therefore, have following characteristic: multipotency uses 2 kinds of adapters, in addition, utilizes adapter connector position and battery connector position, makes that the size of simple and easy setting display adapter is bigger than the size of other adapters, and the display that is easy to observe can be set.

In addition; During on aforementioned elementary cell 100B and with aforementioned medium unit 300; Discarded aforementioned first cap member 101, the 3rd cap member 103 utilize the shutter door member 330 of aforementioned medium unit 300 and pontic part 320 to cover said external tool connector 112a, 112b and adapter connector 111, in addition; On battery connector 114 positions, auxiliary cap member is installed; When installing as the transmitting and storing adapter 140 of aforementioned first kind of adapter or simple and easy setting display adapter 150, it is connected with the second prime connector 323 of the pontic part 320 of being located at aforementioned medium unit 300, can in statu quo use aforementioned auxiliary cap member.

Therefore, have following characteristic: the pontic part of medium unit can adopt the structure of small inexpensive.

In addition; Aforementioned first kind of adapter 140,150 has the part 144,154 of cutting-out; With these first kind of adapter, 140,150 range upon range of aforementioned second kind of adapter 160,170 o'clock of being located at; Through above-mentioned cutting-out part 144,154 is removed, make that the connector that inputs or outputs usefulness 164 of above-mentioned second kind of adapter 160,170 or terminal strip 174 are outstanding.

Therefore, has following characteristic: when using first kind of adapter separately, do not need new cap member.

In addition, aforementioned CPU substrate 110B is tightly fixed on the inwall of aforementioned basic cap member 105B through screw threads, and is chimeric with second end-face wall of aforementioned basic housing member 106B and combine in aforementioned second endface position.

Therefore; Have following characteristic: with elementary cell and medium unit be installed in vibration big LZT; Can prevent because chimeric the becoming flexible between basic cap member and basic housing member; Make connector connecting portion loss between CPU substrate and input and output substrate, or link the rotating fulcrum loss of the pontic part and the basket part of medium unit.

Claims (16)

1. unit programmable logic controller; With the elementary cell of taking in the CPU substrate is core; Said CPU substrate have microprocessor, with the program storage of this microprocessor cooperation and the device memory of memory device information; Said unit programmable logic controller has the input/output interface circuit parts of loading ON/OFF control usefulness and the input and output substrate of input/output terminal daughter board; The end face that said input and output substrate is built in said elementary cell or is built in a side that is arranged on said elementary cell is promptly set up the unit on first endface position, it is characterized in that

Promptly can be provided for the medium unit of the different expanding element of linkage function system on second endface position at the end face of the opposite side of said elementary cell, expanding element is connected with said microprocessor,

Said expanding element has and is used for front and back level binding connector that a plurality of expanding elements are connected with back level successively, can connect more than one kind in the following three kinds of kinds more than 1, and these three kinds of kinds are: carry out the communication unit of serial communication with external unit; Analog input unit or simulation output unit; High-speed counting unit or high-speed pulse output unit,

On said CPU substrate, can be configured on the approaching position of said second endface position with one or more adapter connectors that are connected as first kind of adapter selecting component or second kind of adapter,

Said first kind of adapter comprises at least one side in transmitting and storing adapter and the simple and easy setting display adapter; Said transmitting and storing adapter is used for to said program storage transmission procedure; Said simple and easy setting display adapter is used to keep watch on the operating state and the display action state of said microprocessor; Write and set the control constant to said device memory

Said second kind of adapter is the simple type special adapter of using as substituting of said expanding element based on the qualification specification; Comprise at least a in following three kinds of adapters, these three kinds of adapters are respectively: carry out the communication adapter of serial communication with external unit; Analog input adapter or simulation o adapter; High-speed counting adapter or high-speed pulse o adapter,

Said medium unit partly is made up of the basket part and the pontic of mutual binding,

Said pontic part parallel is configured in the top of said CPU substrate, in keep the prime connector that is connected with said adapter connector,

Said basket part and the parallel configuration of second end face of said elementary cell, the built-in back level connector that connects said expanding element that is useful on, said prime connector is interconnected by cable with back level connector,

Said prime connector is made up of the first prime connector and the second prime connector; The said first prime connector is connected with the said adapter connector of being located at said CPU substrate; The said second prime connector is located at the back position of the said first prime connector; Be used to make that said first kind of adapter is range upon range of is installed on said pontic part; Said prime connector can select to connect said second kind of adapter or said expanding element on said adapter connector, and can with said first kind of adapter at least one and use.

2. unit programmable logic controller as claimed in claim 1; It is characterized in that; Said first kind of adapter is except passing through said adapter connector and said microprocessor being connected; Do not have signal wiring to the input and output external unit; Said second kind of adapter then is to be connected with said microprocessor through said adapter connector, and comprises input and output connector or the input/output terminal daughter board that is connected with the signal wiring that is directed against the input and output external unit, in addition; Said second kind of adapter also comprises the back level connector that is used for prime connector that is connected with said adapter connector and the back position of being located at this prime connector, can the said first kind of adapter of range upon range of connection on the level connector of said back.

3. unit programmable logic controller as claimed in claim 2; It is characterized in that; Said second kind of adapter do not have the insulator chain to the input/output signal line; Be applicable to the purposes of input and output distribution as the short distance distribution of opertaing device, said expanding element keeps the light insulation component to the input/output signal distribution in then, also is applicable to the purposes of the inside and outside length of input and output distribution cloth and opertaing device apart from distribution.

4. like each described unit programmable logic controller in the claim 1 to 3; It is characterized in that; On said CPU substrate, be provided with the external tool connector; This external tool connector is configured on the second endface position position adjacent with said elementary cell, and external tool has the program transfer function that writes io control program to said program storage, perhaps has the operating state that is used to keep watch on said microprocessor and display action state or writes and set the setting Presentation Function of control constant to said device memory; Said external tool is connected with said elementary cell in good time or connects always; Show when using external tool being provided with to set always, need be as the simple and easy setting display adapter of said first kind of adapter

Said adapter connector and said external tool connector disposed adjacent, but be configured in than on this position of external tool connector away from said second endface position,

One end of the pontic part of said medium unit partly is mounted to and can freely rotates with respect to basket, in addition, on this medium unit, is provided with the shutter door member to said external tool connector.

5. unit programmable logic controller as claimed in claim 4 is characterized in that, on said shutter door member, is provided with to be used for slit that the part corresponding with the external tool connector cut away.

6. unit programmable logic controller as claimed in claim 4; It is characterized in that; The basket part of said medium unit is made up of the interior a pair of basket housing member that keeps intermediary substrate; On said intermediary substrate, be provided with and be used to connect the back level connector of said expanding element and the dismounting connector of an end that is connected said cable; In said a pair of basket housing member, be provided with a pair of support plate on a side the basket housing member with U word groove; Said U word groove is used for said pontic partly is mounted to can freely rotate, in to said U word groove, inserted be located at said pontic a pair of fulcrum partly after, utilize the opposing party's basket housing member that U word peristome is sealed.

7. unit programmable logic controller as claimed in claim 6; It is characterized in that; In said a pair of basket housing member on a side the basket housing member; The outside at a pair of support plate that is used to support said pontic part also is provided with a pair of second support plate; On said second support plate, be provided with and the chimeric a pair of receiving hole of second fulcrum that protrudes the quadrature end face of being located at said shutter door member; Or be provided with and run through the second chimeric fulcrum of a pair of receiving hole of being located at said shutter door member quadrature end face, said shutter door member is through making the flat cover body portion elastic bending that connects said quadrature end face, will said second fulcrum inserts said receiving hole by force and realizes assembling.

8. unit programmable logic controller as claimed in claim 4; It is characterized in that; The prime connector of being located at the pontic part of said medium unit is connected through the flat cable that two ends have the dismounting connector with the back level connector of being located at the basket part; Said flat cable is made up of the flexible base, board of the flat strip that is pasted with many signal line; Many places on said flexible base, board are provided with the not outstanding ear of pair of right and left of paste signal line, the route guidance wall location that this outstanding ear is constituted by the housing member by medium unit.

9. unit programmable logic controller as claimed in claim 4; It is characterized in that; Said elementary cell comprises: the basic cap member that the bottom surface is mounted on the basic housing member of wall and is mounted on the peristome of this basic housing member; Be fixed with in the assembling of the inside of said basic housing member: be mounted with the power supply board of constant voltage supply circuit parts and be mounted with the input/output interface circuit parts of said ON/OFF control usefulness and the input and output substrate of input/output terminal daughter board; Be fixed with said CPU substrate in the assembling of the inside of said basic cap member; Said CPU substrate, input and output substrate are connected through board connector with power supply board each other; On said CPU substrate, be provided with: said external tool connector, the first adapter connector and the second adapter connector and the battery connector that is used to connect battery always; Said battery is to keep the store status of said device memory to select to equip for having a power failure at least; On said basic cap member, be equipped with: cover first cap member at said external tool connector position, second cap member that covers the first adapter connector position and the 3rd cap member that covers said second adapter connector position and battery connector position; When said simple and easy setting display adapter directly is connected with the said second adapter connector, discards said the 3rd cap member and this adapter is installed, when said transmitting and storing adapter or second kind of adapter are connected with the said first adapter connector; Discard said second cap member and connect this adapter; When said second kind of adapter is connected with the said second adapter connector, discarded said the 3rd cap member and connect this adapter, and utilize auxiliary cap member to cover said battery connector position; When said second kind of adapter laminated was provided with simple and easy setting display adapter, said auxiliary cap member was used in the same old way.

10. unit programmable logic controller as claimed in claim 9 is characterized in that,

With said medium unit and time spent, discarded said first cap member and second cap member utilize the shutter door member of said medium unit and pontic partly to cover the said external tool connector and the first adapter connector on said elementary cell,

When the transmitting and storing adapter of installing as said first kind of adapter, be connected with the second prime connector of the pontic part of being located at said medium unit, said simple and easy setting display adapter is connected with the said second adapter connector side.

11. unit programmable logic controller as claimed in claim 4 is characterized in that,

Said elementary cell comprises: the bottom surface is mounted on the basic housing member of wall; And the basic cap member that is mounted on the peristome of this basic housing member; Be fixed with in the assembling of the inside of said basic housing member: the power supply board that is mounted with the constant voltage supply circuit parts; And be mounted with the input/output interface circuit parts of said ON/OFF control usefulness and the input and output substrate of input/output terminal daughter board; Be fixed with said CPU substrate in the assembling of the inside of said basic cap member; Said CPU substrate; The input and output substrate is connected through board connector with power supply board each other; On said CPU substrate, be provided with: said external tool connector always; An adapter connector; And the battery connector that is used to connect battery; Said battery is to keep the store status of said device memory to select to equip for having a power failure at least

On said basic cap member, be equipped with: cover first cap member at said external tool connector position and the 3rd cap member that covers said adapter connector position and battery connector position; When directly connecting said simple and easy setting display adapter; Discarded said the 3rd cap member; This adapter is connected with said adapter connector, when connecting said transmitting and storing adapter or second kind of adapter, discarded said the 3rd cap member; This adapter is connected with the adapter connector; And auxiliary coating member is installed on the position of said battery connector, and when said second kind of adapter laminated was provided with simple and easy setting display adapter, said auxiliary cap member was used in the same old way.

12. unit programmable logic controller as claimed in claim 11; It is characterized in that; During on said elementary cell and with said medium unit, discard said first cap member and the 3rd cap member, utilize the shutter door member of said medium unit and pontic partly to cover said external tool connector and adapter connector; And auxiliary cap member is installed on the battery connector position; When installing as the transmitting and storing adapter of said first kind of adapter or simple and easy setting display adapter, be connected with the second prime connector of the pontic part of being located at said medium unit, can in statu quo use said auxiliary cap member.

13. unit programmable logic controller as claimed in claim 9; It is characterized in that; Said first kind of adapter has the cutting-out part; With this first kind of adapter is range upon range of when being arranged at said second kind of adapter,, make that the connector that inputs or outputs usefulness of above-mentioned second kind of adapter or terminal strip are outstanding through above-mentioned cutting-out is partly removed.

14. unit programmable logic controller as claimed in claim 11; It is characterized in that; Said first kind of adapter has the cutting-out part; With this first kind of adapter is range upon range of when being arranged at said second kind of adapter,, make that the connector that inputs or outputs usefulness of above-mentioned second kind of adapter or terminal strip are outstanding through above-mentioned cutting-out is partly removed.

15. unit programmable logic controller as claimed in claim 9; It is characterized in that; Said CPU substrate is tightly fixed on the inwall of said basic cap member through screw threads, and chimeric with second end-face wall of said basic housing member and combine on said second endface position.

16. unit programmable logic controller as claimed in claim 11; It is characterized in that; Said CPU substrate is tightly fixed on the inwall of said basic cap member through screw threads, and chimeric with second end-face wall of said basic housing member and combine on said second endface position.

Images