CN113391595B - PLC system for major engineering intelligent control - Google Patents
PLC system for major engineering intelligent control Download PDFInfo
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- CN113391595B CN113391595B CN202110621512.XA CN202110621512A CN113391595B CN 113391595 B CN113391595 B CN 113391595B CN 202110621512 A CN202110621512 A CN 202110621512A CN 113391595 B CN113391595 B CN 113391595B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1105—I-O
Abstract
The invention discloses a PLC system for major engineering intelligent control, and belongs to the field of electrical equipment. A PLC system for major engineering intelligent control, contain termination, termination is including compressing tightly the unit, the wiring unit, break-make unit and the control unit, the wiring unit includes a plurality of wiring through-holes, the wiring through-hole that every electric wire only the single accessible corresponds and the terminal electric connection of the PLC system of treating the wiring, it includes a plurality of compaction holes to compress tightly the unit, every compaction hole is single corresponds the electric wire, only can fix the electric wire through compressing tightly the hole, the break-make unit is used for opening and close the wiring through-hole, the control unit is used for responding to whether the electric wire behind the wiring is circular telegram, it can realize reducing the flexibility of wiring operation, only can wiring in single passageway, and can in time investigate whether the wiring correctly, effectively prevent trouble and occurence of failure.
Description
Technical Field
The invention belongs to the field of electrical equipment, and particularly relates to a PLC system for intelligent control of major engineering.
Background
PLC technology is also cumbersome and complex, including the design, installation, testing, wiring, etc. of many devices, which must be carefully considered, and if the wiring is wrong in the PLC control cabinet, it will cause some damage.
A significant feature of PLC is that there are many I/O, which means that the adaptability of PLC is strong, even if the control flow chart is changed by the user because of the update of product, the PLC is generally applied to the industrial control field only by modifying the control flow chart without modifying the wiring of PLC hardware.
Classified from the constituent structural forms, PLCs can be classified into two types: one type is an integrated PLC, which is characterized in that a power supply, a central processing unit and an I/O interface are integrated in a shell. The other type is a standard template type (template) structured PLC, which is characterized in that a power supply template, a central processing unit template, an I/O template and the like are mutually independent in structure, and a proper template can be selected according to specific application requirements and is installed on a fixed rack or a guide rail to form a complete PLC application system.
In the process of industrial field practical use, when a PLC is maintained or new peripherals are added, because the industrial field environment is severe, the wiring workload is large, and the situation of wiring errors is inevitable, the I/O port with power limitation is connected with a short circuit by mistake, the port is caused to be over-current and burnt, and the wrong wiring is fatal under the situation, so that the short circuit of equipment is easily caused to cause component damage, and even fire is caused.
Disclosure of Invention
The invention aims to provide a PLC system wiring device for major engineering intelligent control, which can reduce the flexibility of wiring operation, can only perform wiring in a single channel, can check whether the wiring is correct or not in time and effectively prevent faults and accidents.
1. The wiring device comprises a pressing unit, a wiring unit, an on-off unit and a control unit.
The wiring unit comprises a plurality of wiring through holes, and each wire can be electrically connected with a wiring terminal of the PLC system to be wired only through a single corresponding wiring through hole.
The pressing unit comprises a plurality of pressing holes, each pressing hole is single corresponding to the electric wire, and the electric wire can only be fixed through the pressing holes.
The on-off unit is used for opening and closing the wiring through hole.
The control unit is used for sensing whether the wired electric wire is electrified or not.
As a further improvement of 1, the wiring unit includes a terminal block. A plurality of wiring through holes are all opened in the terminal box lateral wall. The terminal box sets firmly in compressing tightly the unit downside, compresses tightly the hole and wiring through-hole one-to-one, and every compresses tightly the hole and is located the same axis with the wiring through-hole that corresponds.
As a further development of 1, the switching unit comprises a switching assembly. The on-off component penetrates through the wiring through hole and is in sliding connection with the wiring through hole. When the on-off assembly is located in the wiring through hole, the electric wire cannot pass through the wiring through hole.
As a further improvement of 1, the control unit comprises an inductive probe and an inductive module. The induction probe is electrically connected with the induction module. The induction probe is positioned in the wiring through hole. The sensing module can judge whether the sensing probe is provided with the alternating current power supply or not.
As a further improvement of 1, the induction module comprises a field effect tube, a triode, a bulb, a diode, a resistor and a storage battery. The input end of the field effect tube is electrically connected with the induction probe. The output end of the field effect tube is electrically connected with the resistor, the input end of the diode and the power supply respectively. The output end of the diode is electrically connected with the input end of the triode. The output end of the triode is electrically connected with the bulb and the power supply respectively.
As a further development of 1, the on-off unit comprises an on-off cartridge. The upper end of the on-off box is detachably connected with the wiring unit. The lower end of the on-off box is provided with a lower outlet and a movable groove. The on-off assembly includes a shutter. The baffle is connected with the moving groove in a sliding manner. The caliber of the lower outlet is larger than the vertical projection area of the baffle, and the baffle can move out of the on-off box through the lower outlet. The baffle penetrates through the wiring through hole and is in sliding connection with the wiring through hole.
As a further improvement of 1, the on-off assembly comprises a plurality of blocking members including the shutter, which are of the same structure as the shutter. The number of the lower outlets and the moving grooves is the same as the number of the blocking members. Each of the blocking members is in single correspondence with the wiring through-hole.
As a further development of 1, the on-off assembly comprises an actuating plate. The lateral wall of the on-off box is provided with a starting groove. The starting plate is connected with the starting groove in a sliding mode. The start plate can be moved out of the on-off box through the start slot.
As a further improvement of 1, the baffle comprises a thick plate, a thin plate and a handle. The side edge of the thick plate is fixedly connected with the side edge of the thin plate. The thickness of the thick plate is larger than the width of the moving groove and is smaller than or equal to the width of the lower outlet. The thickness of the thin plate is less than or equal to the width of the moving groove. The handle is fixedly arranged at the lower end of the thick plate, the thickness of the handle is smaller than or equal to the width of the moving groove, and the handle is connected with the moving groove in a sliding manner.
2. A PLC system for intelligent control of major engineering comprises the wiring device 1.
Compared with the prior art, the invention has the advantages that:
according to the scheme, each wire can be connected with the PLC system to be wired only through one corresponding wiring through hole, so that wiring is clear, and the problem of wiring error caused by no wire interlacing is caused.
The situation that the connection through hole is closed by sliding of the connection through hole accessible on-off component is controlled, the on-off component can open the plurality of connection through holes one by one, and the connection through holes are prevented from being connected wrongly.
This scheme wiring through-hole is equipped with inductive probe, inductive probe and response module electric connection, and after electric wire and the PLC system switch-on in the through-hole of working a telephone switchboard, whether inductive probe real-time supervision electric wire switched on, make the feedback to the flashing through the bulb, effectively guarantee that the electric wire correctly switches on.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a partially cut-away perspective view of a first embodiment of the present invention;
fig. 3 is a schematic plan sectional view of a PLC system according to a first embodiment of the present invention;
fig. 4 is a circuit diagram of a sensing module according to a first embodiment of the invention;
FIG. 5 is a schematic plan cross-sectional structural view of an on-off box according to a first embodiment of the present invention;
FIG. 6 is a schematic diagram of the position of the on-off assembly before the electrical wires are connected according to the first embodiment of the present invention;
FIG. 7 is a schematic perspective view of a baffle according to a first embodiment of the present invention;
FIG. 8 is a schematic view of the position of the switching assembly when the first wire is ready to be connected according to the first embodiment of the present invention;
FIG. 9 is a schematic diagram of the position of the on-off assembly when the shutter moves to open the wiring through hole according to the first embodiment of the present invention;
FIG. 10 is a schematic diagram of the position of the on-off assembly after the baffle moves to open the wiring through hole according to the first embodiment of the invention;
fig. 11 is a schematic view of the position of the switching assembly when a second electrical wire is ready to be connected according to the first embodiment of the present invention.
The reference numbers in the figures illustrate:
the device comprises a pressing unit 1, a pressing plate 101, a pressing hole 102, a wiring unit 2, a junction box 201, a wiring through hole 202, an on-off unit 3, an on-off box 301, an on-off component 302, a starting plate 302-1, a baffle 302-2, a thick plate 302-2-1, a thin plate 302-2-2, a handle 302-2-3, a second baffle 302-3, a third baffle 302-4, a lower outlet 303, a moving groove 304, a starting groove 305, a control unit 4, an inductive probe 401, a field effect tube 403, a triode 404, a bulb 405, a diode 406, a resistor 407, a PLC system 5, a wiring terminal 501 and a wire 6.
Detailed Description
The first embodiment is as follows: referring to the wiring device of fig. 1-11, the wiring comprises a pressing unit 1, a wiring unit 2, an on-off unit 3 and a control unit 4.
The pressing unit 1 includes a pressing plate 101 and a plurality of pressing holes 102, and the pressing holes 102 are opened on the right side of the pressing plate 101 and penetrate through the pressing plate 101.
The wiring unit 2 includes a wiring box 201 and a plurality of wiring through holes 202. The plurality of wiring through holes 202 penetrate both left and right side walls of the junction box 201. The upper end of the junction box 201 is detachably connected to the lower end of the left side of the pressing plate 101, the pressing holes 102 correspond to the wiring through holes 202 one by one, and each pressing hole 102 and the corresponding wiring through hole 202 are located on the same axis.
Each wire 6 can be electrically connected to the terminal 501 of the PLC system 5 to be wired only through a single corresponding wiring through hole 202. Each of the pressing holes 102 corresponds to one wire 6, and the user can only fix the wire 6 to the terminal 501 through the pressing hole 102.
The on-off unit 3 includes an on-off box 301 and an on-off assembly 302.
The upper end of the on-off box 301 is detachably connected with the lower end of the junction box 201. The right side wall of the on-off box 301 is opened with an actuating slot 305. The lower end of the on-off box 301 is provided with three lower outlets 303 and three moving grooves 304, each lower outlet 303 and one moving groove 304 are set as a group of opening groups, the lower outlet 303 in each opening group is always positioned at the right side of the moving groove 304, and the lower outlet 303 of the left group of opening groups is communicated with the moving groove 304 of the opening group.
The on-off assembly 302 comprises an actuating plate 302-1, a baffle plate 302-2, a baffle plate 302-3 and a baffle plate 302-4, wherein the baffle plate 302-2, the baffle plate 302-3 and the baffle plate 302-4 are components with the same structure.
Actuation plate 302-1 is slidably coupled to actuation slot 305. The actuator plate 302-1 can be moved out of the break-make box 301 through the actuator slot 305.
Baffle 302-2 includes a thick plate 302-2-1, a thin plate 302-2-2, and a handle 302-2-3.
The left side of the thick plate 302-2-1 is fixedly connected with the right side of the thin plate 302-2-2. The thickness of slab 302-2-1 is greater than the width of moving trough 304 and less than the width of lower outlet 303. The thickness of the thin plate 302-2-2 is less than the width of the moving slot 304. The handle 302-2-3 is fixedly arranged at the lower end of the thick plate 302-2-1, the thickness of the handle 302-2-3 is smaller than the width of the moving groove 304, and the handle 302-2-3 is connected with the moving groove 304 in a sliding manner.
Thick plate 302-2-1 and thin plate 302-2-2 penetrate through wiring through hole 202 and are connected with wiring through hole 202 in a sliding manner, and when thick plate 302-2-1 and thin plate 302-2-2 are located in wiring through hole 202, wiring through hole 202 is sealed, so that electric wire 6 cannot be connected with wiring terminal 501 through wiring through hole 202.
When the handle 302-2-3 is moved to the right side, since the thickness of the thick plate 302-2-1 is smaller than the width of the lower outlet 303 and the thickness of the thin plate 302-2-2 is also smaller than the width of the lower outlet 303, the baffle 302-2 falls out downward, the wiring through hole 202 corresponding to the baffle 302-2 is opened, and the electric wire 6 can be wired.
Baffle 302-2 is connected with the opening group on the right side, two baffles 302-3 are connected with the opening group in the middle, three baffles 302-4 are connected with the opening group on the left side, and the left side of starting plate 302-1 is abutted against baffle 302-2.
When wiring operation is needed, the starting plate 302-1 is moved to the right side and moved out of the starting groove 305, the baffle plate 302-2, the baffle plate 302-3 and the three baffle plates 302-4 are moved out in sequence, in the moving-out process of the baffle plate 302-2, the baffle plate 302-3 and the three baffle plates 302-4, the wiring through holes 202 corresponding to the three are also opened in sequence, the wire connection can be realized only from the right to the left, the wire connection can be realized in sequence one by one, after the wire 6 is connected with the corresponding wiring terminal 501, the wiring terminal 501 and the wire 6 are screwed through the pressing hole 102, and the fixed connection is realized.
The control unit 4 includes an inductive probe 401 and an inductive module 402. The sensing probe 401 is electrically connected to the sensing module 402.
The sensing module 402 includes a fet 403, a transistor 404, a bulb 405, a diode 406, a resistor 407, and a battery. The input terminal of the fet 403 is electrically connected to the inductive probe 401. The output terminal of the fet 403 is electrically connected to the resistor 407, the input terminal of the diode 406, and the power supply. The output terminal of the diode 406 is electrically connected to the input terminal of the transistor 404. The output end of the triode 404 is electrically connected with the bulb 405 and the power supply respectively.
When the connection between the wire 6 and the terminal 501 is incorrect, the fet 403 will generate a leakage current due to the gate being suspended, no current will flow into the base of the transistor 404, and the lamp 405 will be turned off. When the electric wire 6 is connected with the binding post 501 and current passes correctly, and the inductive probe 401 is close to an alternating power supply of 220V or more, an alternating electric field is formed around the power supply, corresponding alternating voltage is induced on the inductive probe 401 and is applied to the grid electrode of the field-effect tube 403, when the induced voltage on the inductive probe 401 is negative, the field-effect tube 403 is cut off, the voltage of the storage battery is applied to the base electrode of the triode 404 through the resistor 407 and the diode 406, the triode 404 is conducted, and the bulb 405 emits light. The flashing of the light bulb 405 can produce a noticeable and intuitive indication of the proper or improper wiring.
As household and commercial power consumption is generally 220V alternating current, a foundation is provided for the identification of the induction probe 401, the induction probe 401 can realize observation at a position 2-5cm away from the electric wire 6 without contacting the electric wire 6, and the safety is good. The circuit does not need a circuit board, and has simple structure and low cost.
The second embodiment is as follows: unlike the first embodiment, the on-off assembly 302 includes more than three shutters 302-2 and one actuator plate 302-1.
The structure of the baffle 302-2 is the same as that of the first embodiment.
The number of the lower outlets 303 and the moving grooves 304 formed on the lower side of the on-off box 301 is the same as that of the baffles 302-2.
The connection relationship of the baffle 302-2 with the lower outlet 303 and the moving groove 304 is the same as that in the first embodiment.
The sequential opening of the plurality of wiring through holes 202 can be realized, and a guarantee is provided for the wiring operation of a complex PLC system.
The third concrete embodiment: different from the first embodiment, the on-off assembly 302 includes a plurality of iron plates, the lower end of the on-off box 301 is provided with a corresponding number of outlets, the width of the outlets is greater than that of the iron plates, and the number of the iron plates corresponds to that of the wiring through holes 202.
An electromagnet is arranged at the upper end of each wiring through hole 202 and is electrically connected with the induction module 402, a controller is arranged between the electromagnet and the induction module 402 and is electrically connected with the induction probe 401, and the electromagnet is magnetically connected with the iron plate.
When the sensing probe 401 senses that the connection of the measured electric wire 6 is correct, the controller controls the power-off of the electromagnets in the next sequence, the magnetism of the electromagnets between the iron plates is disconnected, and the iron plates fall through the outlet, so that the next electric wire 6 can be connected.
When the induction probe 401 induces that the electric wires 6 to be measured are not electrified and wrong, the controller controls the electromagnets in the next sequence to be continuously electrified, the electromagnets and the iron plate are attracted all the time, and the next electric wire 6 cannot be electrified until the wrong electric wire 6 is normally connected.
Effectively increasing feedback and preventing the wire 6 from being connected wrongly.
In a fourth embodiment, the PLC system for intelligent control of critical engineering includes the wiring device according to the first embodiment.
Claims (3)
1. A PLC system for major engineering intelligent control contains termination, its characterized in that: the wiring device comprises a pressing unit (1), a wiring unit (2), an on-off unit (3) and a control unit (4);
the pressing unit (1) comprises a plurality of pressing holes (102), each pressing hole (102) is singly corresponding to the electric wire (6), and the electric wires (6) can be fixed only through the pressing holes (102);
the wiring unit (2) comprises a wiring box (201) and a plurality of wiring through holes (202); the plurality of wiring through holes (202) penetrate through the left side wall and the right side wall of the junction box (201); the upper end of the junction box (201) can be detachably connected to the lower end of the left side of the pressing plate (101), the pressing holes (102) correspond to the wiring through holes (202) one by one, and each pressing hole (102) and the corresponding wiring through hole (202) are located on the same axis; each wire (6) can be electrically connected with a binding post (501) of the PLC system (5) to be wired only through a single corresponding wiring through hole (202); each compression hole (102) is singly corresponding to the electric wire (6), and a user can only connect and fix the electric wire (6) with the binding post (501) through the compression hole (102);
the on-off unit (3) comprises an on-off box (301) and an on-off assembly (302);
the upper end of the on-off box (301) is detachably connected with the lower end of the junction box (201); a starting groove (305) is formed in the right side wall of the on-off box (301); the lower end of the on-off box (301) is provided with three lower outlets (303) and three moving grooves (304), each lower outlet (303) and one moving groove (304) are arranged into a group of opening groups, the lower outlet (303) in each opening group is always positioned on the right side of the moving groove (304), and the lower outlet (303) of the left group of opening groups is communicated with the moving groove (304) of the opening group;
the on-off component (302) comprises a starting plate (302-1), a baffle plate (302-2), a baffle plate (302-3) and three baffle plates (302-4), wherein the baffle plate (302-2), the baffle plate (302-3) and the three baffle plates (302-4) are parts with the same structure;
the starting plate (302-1) is connected with the starting groove (305) in a sliding way; the starting plate (302-1) can move out of the on-off box (301) through the starting groove (305);
the baffle (302-2) comprises a thick plate (302-2-1), a thin plate (302-2-2) and a handle (302-2-3);
the left side edge of the thick plate (302-2-1) is fixedly connected with the right side edge of the thin plate (302-2-2); the thickness of the thick plate (302-2-1) is larger than the width of the moving groove (304) and smaller than the width of the lower outlet (303); the thickness of the thin plate (302-2-2) is smaller than the width of the moving groove (304); the handle (302-2-3) is fixedly arranged at the lower end of the thick plate (302-2-1), the thickness of the handle (302-2-3) is smaller than the width of the moving groove (304), and the handle (302-2-3) is connected with the moving groove (304) in a sliding manner;
the thick plate (302-2-1) and the thin plate (302-2-2) penetrate through the wiring through hole (202) and are connected with the wiring through hole (202) in a sliding mode, when the thick plate (302-2-1) and the thin plate (302-2-2) are located in the wiring through hole (202), the wiring through hole (202) is sealed, and the electric wire (6) cannot be connected with the wiring post (501) through the wiring through hole (202);
when the handle (302-2-3) is moved to the right side, as the thickness of the thick plate (302-2-1) is smaller than the width of the lower outlet (303) and the thickness of the thin plate (302-2-2) is also smaller than the width of the lower outlet (303), the baffle (302-2) falls out downwards, the wiring through hole (202) corresponding to the baffle (302-2) is opened, and the electric wire (6) can be connected through wiring;
the baffle (302-2) is connected with the opening group at the right side, the second baffle (302-3) is connected with the opening group at the middle, the third baffle (302-4) is connected with the opening group at the left side, and the left side of the starting plate (302-1) is abutted to the baffle (302-2);
the control unit (4) is used for sensing whether the wired electric wire (6) is electrified or not.
2. The PLC system for intelligent control of critical engineering according to claim 1, wherein: the control unit (4) comprises an induction probe (401) and an induction module (402); the induction probe (401) is electrically connected with the induction module (402); the induction probe (401) is positioned in the wiring through hole (202); the sensing module (402) may make the determination by sensing whether there is ac power at the probe (401).
3. The PLC system for intelligent control of critical engineering according to claim 2, wherein: the induction module (402) comprises a field effect transistor (403), a triode (404), a bulb (405), a diode (406), a resistor (407) and a storage battery; the input end of the field effect tube (403) is electrically connected with the induction probe (401); the output end of the field effect tube (403) is respectively electrically connected with the resistor (407), the input end of the diode (406) and the power supply; the output end of the diode (406) is electrically connected with the input end of the triode (404); the output end of the triode (404) is respectively electrically connected with the bulb (405) and the power supply.
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| CN202110621512.XA CN113391595B (en) | 2021-06-03 | 2021-06-03 | PLC system for major engineering intelligent control |
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| CN112285408A (en) * | 2020-08-28 | 2021-01-29 | 广州百兴网络科技有限公司 | Voltage stability monitoring device and method for large outdoor transformer |
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| CN113391595A (en) | 2021-09-14 |
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