CN202093391U - Multifunctional digital signal input card - Google Patents
Multifunctional digital signal input card Download PDFInfo
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- CN202093391U CN202093391U CN201120219510XU CN201120219510U CN202093391U CN 202093391 U CN202093391 U CN 202093391U CN 201120219510X U CN201120219510X U CN 201120219510XU CN 201120219510 U CN201120219510 U CN 201120219510U CN 202093391 U CN202093391 U CN 202093391U
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- bus
- digital signal
- processing unit
- signal input
- power supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model relates to a multifunctional digital signal input card, comprising a multi-path signal isolation conversion unit, an MCU processing unit, a CPLD bus logic, an RAM memory, a bus and an isolation interface power supply. One end of the multi-path signal isolation conversion unit is connected to an external terminal board, and the other end is connected to the channel acquisition and fault detection of the MCU processing unit; the communication interface of the MCU processing unit is connected to one end of the CPLD bus logic, the communication interface of the MCU processing unit is connected to the RAM memory; the other end of the CPLD bus logic is connected to the bus; and one end of the isolation interface power supply is connected to the bus, and the other end is connected to the multi-path signal isolation conversion unit and the external terminal board. The input card is convenient in installation, the card state indication is visual, the channel is flexibly configured, live line work is supported, the hardware replacement is convenient, the intellectualization degree is high, and the software maintenance is convenient.
Description
Technical field
The utility model relates to a kind of digital signal input fastener, relates in particular to a kind of multi-functional digital signal input fastener that is plugged in the industrial control system.
Background technology
In recent years, because the development of the industrial computer (abbreviation Industrial PC) of PC-based, the automated system of forming with Industrial PC, I/O device, supervising device, Control Network has obtained popularizing rapidly, digital signal input fastener is used in a large number, existing various digital signal input fastener is the interface more complicated mostly, volume is bigger, use single, intelligent inadequately, the continuous upgrading of using along with the market demand and technology changes, some present products are difficult to well be satisfied, and are subjected to certain restriction in the application.
The utility model content
At the deficiencies in the prior art, the technical matters that the utility model solves provides a kind of multifunctional digital signal input fastener, its claimed structure is simple, volume is little, can realize highly intelligent get digital signal acquiring and application, but flexible configuration has adapted to the different market demands and technology is used, and reaches multi-functional effect.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of multifunctional digital signal input fastener, this multifunctional digital signal input fastener comprises: the multiple signals isolated variable, have multiplexer channel, wherein an end is connected to the outer end daughter board and is used to introduce external signal; The MCU processing unit, able to programme, comprise passage collection, functional mode selection, Filtering Processing, record, clock synchronization, parameter setting, firmware upgrade, fault detect, communication interface.Passage collection wherein is connected with the other end of fault detect with the multiplexer channel of described multiple signals isolated variable; The CPLD bus logic, able to programme, the one end is connected in the parallel bus mode with the communication interface of described MCU processing unit; The RAM storer is connected by parallel bus with the communication interface of described MCU processing unit; Bus, the other end of described CPLD bus logic is connected to this bus by address bus, data bus and control bus; The isolating interface power supply, an end is connected to bus, and the other end then is connected to multiple signals isolated variable and outer end daughter board; The interface power ground detects, and an end is connected to described isolating interface power supply, and the other end then is connected to the failure detector circuit of described MCU processing unit.
Further, described bus utilization golden finger form insertion machine.
Further, described MCU processing unit comprises the passage collection, is used for real-time image data; Functional mode is selected, and passage has multi-functional effect, can be configured to digital quantity input DI, step-by-step counting input PI, frequency input PTI; Filtering Processing can be set the polytype digital filtering; Record can carry out real time record; Clock synchronization, but synchro system clock; Parameter setting, but on-line setup fastener parameter; Firmware upgrade, but online updating fastener firmware; Fault detect can be carried out passage diagnosis and the diagnosis of interface power supply; And communication interface, be used for carrying out communication with the outside.
Further, described multifunctional digital signal input fastener also comprises an interface power ground testing circuit, this interface power ground testing circuit one end is connected to described isolating interface power supply, the other end then is connected to the fault detect of described MCU processing unit, has isolating interface power ground diagnostic function.
Further, described MCU processing unit, CPLD bus logic, RAM storer and bus link together by parallel data bus line, address bus and control bus.
Further, described isolating interface power supply is the terminal strip power supply, and terminal strip need not connect power supply in addition.
Compared with prior art, the beneficial effects of the utility model are: profile designs for fastener, and it is convenient, firm to install, fastener state indication simple, intuitive, and channel arrangement is flexible, and it is convenient that the operation of tenaculum hot-line insertion and extraction, hardware are changed, and highly intelligent, software maintenance is convenient.
Description of drawings
Figure 1 shows that the theory diagram of the utility model multifunctional digital signal input fastener;
Fig. 2 is the electrical schematic diagram of the multiple signals isolated variable of multifunctional digital signal input fastener shown in Figure 1;
Fig. 3 is the isolating interface power supply of multifunctional digital signal input fastener shown in Figure 1 and the electrical schematic diagram that the interface power ground detects;
Fig. 4 be multifunctional digital signal shown in Figure 1 input fastener structural representation.
Fig. 5 is an interface connector pin function allocation table.
Embodiment
Below with reference to accompanying drawing the utility model multifunctional digital signal input fastener 100 is described in detail.
See also Fig. 1 and Fig. 4, described multifunctional digital signal input fastener 100 is 32 a channel separation type digital signals input fastener, and comprising: it comprises multiple signals isolated variable 1, MCU processing unit 2, CPLD bus logic 3, RAM storer 4, isolating interface power supply 5, interface power ground testing circuit 6, condition indication circuit 7 and bus 8.
See also Fig. 2, described multiple signals isolated variable 1 has multiplexer channel, and these multiplexer channels can be carried out photoelectricity and be isolated.And wherein an end is connected to the outer end daughter board and is used to introduce external signal.Described multiplexer channel has 32 the tunnel, and each paths has first to the 8th totally 8 resistance R 1-R8, photoelectrical coupler U1 and triode Q1.Wherein R1-R5 plays metering function generally, the R2-R3 parallel connection again with the R4-R5 parallel connection after series connection be in order to improve power dissipation, R1 is a dead band resistance, photoelectrical coupler U1 is used for photoelectricity and isolates, the circuit of its output terminal is used to improve transmission speed, signal is had try one's best little time-delay to send into CPU and handles.
Described MCU processing unit 2 is a key process unit, and it comprises passage collection, functional mode selection, Filtering Processing, record, clock synchronization, parameter setting, firmware upgrade, fault detect, communication interface.Described passage collection is used for real-time image data, functional mode selects to have multi-functional effect, can be configured to digital quantity input DI, step-by-step counting input PI, frequency input PTI, Filtering Processing can be set the polytype digital filtering, record can carry out real time record, but clock synchronization synchro system clock, but parameter setting on-line setup fastener parameter, firmware upgrade, but online updating fastener firmware, fault detect can be carried out passage diagnosis and the diagnosis of interface power supply, communication interface is used for carrying out communication with the outside.The passage collection of described MCU processing unit 2 collects the signal after the conversion of described multiple signals isolated variable, carry out Filtering Processing and note exception record according to the channel type of selecting, carry out fault detect simultaneously, handle the back data and write down and send by communication interface, simultaneously, the information that receives by communication interface can be carried out parameter setting, firmware upgrade and this fastener clock is carried out synchronously this fastener, guarantee the real-time of record, can keep in writing down by the RAM storer.
See also Fig. 3, described isolating interface power supply 5 and described interface power ground testing circuit 6 are made up of two DC-DC chip U2, U3, eight resistance R 9-R16, two photoelectrical couplers and two capacitor C 1, C2.Described isolating interface power supply 5 is the 48V insulating power supply.Provide 48V after the DC-DC insulating power supply chip U2-U3 series connection of two 5V commentaries on classics 24V, R13-R16 is used for current limliting, and R17 is used for drawing, PNG is a high level under the normal condition, when P48 ground connection, ground is than the current potential height of N48, and the input of U5 has electric current to flow through, the output conducting, PNG step-down level, in like manner, the output conducting of U4 when N48 ground connection, PNG step-down level so detects whether ground connection of 48V.When isolating interface power supply 5 ground connection, make the output stage conducting, output level PBG state changes, and detects isolating interface power supply 5 ground connection.These interface power ground testing circuit 6 one ends are connected to described isolating interface power supply 5, and the other end then is connected to the fault detect of described MCU processing unit, has isolating interface power ground diagnostic function.Described isolating interface power supply 5 is the terminal strip power supply, and terminal strip then need not connect power supply in addition.
Described bus 8 is the HSC4000 bus, is a bus golden finger, and this bus 4 is used to realize and the docking of data bus, address bus and control bus, i.e. bus 8 utilization golden finger form insertion machines.Described bus 8 provides pin P5F, and the Vin end of described DC-DC chip U2 and U3 links to each other with pin P5F.
Described condition indication circuit 7 comprises a pair of light emitting diode and a resistance, and an end of described light emitting diode is connected to an end of described resistance, and the other end of the other end and resistance is connected to the fault detect of MCU processing unit.
Described MCU processing unit 2, CPLD bus logic 3 and RAM storer 4 are three kinds of different integrated chips, and they link together by parallel data bus line, address bus and control bus.CPLD and MCU are able to programme, the intellectuality of realization fastener and multi-functional.。
Described condition indication circuit 7 is made up of a light emitting diode and a resistance, by the glow color and the light on and off of MCU processing unit control light emitting diode, can learn the state of fastener thus.
The annexation of described above-mentioned each parts is that a wherein end of described multiple signals isolated variable 1 is connected to the outer end daughter board and is used to introduce external signal, and the other end is connected to the passage collection and the fault detect of described MCU processing unit 2.The communication interface of MCU processing unit 2 links to each other by the parallel bus mode with an end of CPLD bus logic 3.The other end of CPLD bus logic 3 then is connected to this bus 8 by address bus, data bus and control bus.RAM storer 4 is connected to the communication interface of described MCU processing unit by parallel bus.One end of isolating interface power supply 5 is connected to bus 8, and the other end then is connected to multiple signals isolated variable 1 and outer end daughter board.
In addition, the described multifunctional digital signal of above embodiment input fastener 100 also can be the isolated form digital signal input fastener of 16 passages, and it is identical with working method that the digital signal of 32 passages in its connected mode and working method and the present embodiment is imported being connected of fastener 100.
The utility model multifunctional digital signal input fastener 100 is applicable to the HSC4000 bus; Profile designs for fastener, and golden finger is used to insert bus, is with a metal decking and two drawing-aid devices; Passage has multi-functional effect, can be configured to digital quantity input DI, step-by-step counting input PI, frequency input PTI; The indication of fastener state is realized by the glow color and the light on and off of a pilot lamp; The interface power supply of built-in isolation is the terminal strip power supply, and terminal strip need not connect power supply in addition; The tenaculum hot-line insertion and extraction need not any other operation; But the synchro system clock, can carry out real time record; Can set the polytype digital filtering; Can keep in a large amount of historical records; Have passage diagnosis and interface power ground diagnostic function; But online updating parameter and template firmware;
Above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the spirit and scope of technical solutions of the utility model.
Claims (6)
1. a multifunctional digital signal input fastener is characterized in that, this multifunctional digital signal input fastener comprises:
The multiple signals isolated variable has multiplexer channel, and wherein an end is connected to the outer end daughter board and is used to introduce external signal;
The MCU processing unit, key process unit, passage collection wherein and fault detect are connected to the other end of multiple signals isolated variable;
CPLD bus logic, the communication interface of described MCU processing unit are connected to an end of this CPLD bus logic by parallel bus;
The RAM storer, the communication interface of described MCU processing unit is connected to this RAM storer by parallel bus;
Bus, the other end of described CPLD bus logic is connected to this bus by address bus, data bus and control bus;
The isolating interface power supply, an end is connected to bus, and the other end then is connected to multiple signals isolated variable and outer end daughter board.
2. multifunctional digital signal input fastener according to claim 1 is characterized in that: described bus utilization golden finger form is inserted cabinet.
3. multifunctional digital signal input fastener according to claim 1, it is characterized in that: described MCU processing unit comprises:
Passage is gathered, and is used for real-time image data;
Functional mode is selected, and passage has multi-functional effect, can be configured to digital quantity input DI, step-by-step counting input PI, frequency input PTI;
Filtering Processing can be set the polytype digital filtering;
Record can carry out real time record;
Clock synchronization, but synchro system clock;
Parameter setting, but on-line setup fastener parameter;
Firmware upgrade, but online updating fastener firmware;
Fault detect can be carried out passage diagnosis and the diagnosis of interface power supply;
Communication interface is used for carrying out communication with the outside.
4. multifunctional digital signal input fastener according to claim 1, it is characterized in that: this multifunctional digital signal input fastener also comprises an interface power ground testing circuit, this interface power ground testing circuit one end is connected to described isolating interface power supply, the other end then is connected to the fault detect of described MCU processing unit, has isolating interface power ground diagnostic function.
5. multifunctional digital signal input fastener according to claim 1, it is characterized in that: described MCU processing unit, CPLD bus logic, RAM storer and bus link together by parallel data bus line, address bus and control bus.
6. multifunctional digital signal input fastener according to claim 1, it is characterized in that: described isolating interface power supply is the terminal strip power supply, and terminal strip need not connect power supply in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120219510XU CN202093391U (en) | 2011-06-27 | 2011-06-27 | Multifunctional digital signal input card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120219510XU CN202093391U (en) | 2011-06-27 | 2011-06-27 | Multifunctional digital signal input card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202093391U true CN202093391U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120219510XU Expired - Lifetime CN202093391U (en) | 2011-06-27 | 2011-06-27 | Multifunctional digital signal input card |
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| Country | Link |
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| CN (1) | CN202093391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680757A (en) * | 2012-05-11 | 2012-09-19 | 蔡远文 | Multi-channel digital signal isolation, conditioning and acquisition device |
| CN107145103A (en) * | 2017-05-22 | 2017-09-08 | 上海自动化仪表有限公司 | The diagnostic device inputted based on digital quantity |
-
2011
- 2011-06-27 CN CN201120219510XU patent/CN202093391U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680757A (en) * | 2012-05-11 | 2012-09-19 | 蔡远文 | Multi-channel digital signal isolation, conditioning and acquisition device |
| CN107145103A (en) * | 2017-05-22 | 2017-09-08 | 上海自动化仪表有限公司 | The diagnostic device inputted based on digital quantity |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |