CN1845028A - Long-distance IO digital value module with Profibus-DP bus interface - Google Patents
Long-distance IO digital value module with Profibus-DP bus interface Download PDFInfo
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- CN1845028A CN1845028A CNA2005100297606A CN200510029760A CN1845028A CN 1845028 A CN1845028 A CN 1845028A CN A2005100297606 A CNA2005100297606 A CN A2005100297606A CN 200510029760 A CN200510029760 A CN 200510029760A CN 1845028 A CN1845028 A CN 1845028A
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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
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- 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 invention relates to a remote-control IO digit module with Profibus-DP bus interface, which is used to connect the input and output signals of digital quantity of kinds of in-site devices of industry control system as sensor, key-press, valve, and transformer. Wherein, said invention comprises: digital quantity input module and digital quantity output module, while the first module comprises analogue input, optical couple separation, and single-chip and the second module comprises single-chip, optical couple separation, and IO digital quantity output; it is characterized in that: it has a Profibus-DP network write data, Profibus-DP protocol chip (SPC3) and Porfibus-DP protocol; the power source has special design; the digital quantity module has control software; the signal transmission comprises: the digital quantity input transmits the signal to the optical couple separation, to be transmitted to the single-chip; the single-chip sends out the digital quantity to Profibus-DP protocol chip (SPC3); the data receiving and sending of Profibus-DP network are protected by optical couple separation; the Profibus-DP network transmits the signal to the Profibus-DP protocol chip (SPC3), and via optical couple to be input into single chip; then outputting digital quantity.
Description
Technical field
The present invention relates to a kind of remote I digital module, belong to fieldbus remote control technology field with the Profibus-DP bus interface.
Background technology
Along with the development of progress of science and technology, modernization industry, people have higher requirement to the control of industrial processes.The main flow direction intelligent, networked, microminiaturized, that the contemporary automated control technology of decentralized representative develops, and field bus technique impels automated system to comply with the advanced technology of this demand for development just.
The ProfibuS-DP agreement is a kind of general purpose language that is applied on the electronic controller, is one of general in the world standard for Fieldbus of order, and this agreement is divided three parts:
1), PROFIBUS-DP: adopt the communication modes of repeating query between main website and the slave station, be mainly used in the automated manufacturing system cell level and communicate by letter with field level.
2), PROFIBUS PA: power supply and communication data transmit by bus parallel, are mainly used in cell level and field level communication in the procedure-oriented automated system.
3), PROFIBUS FMS: defined the communication model between main website and the main website, be mainly used in the process data exchange of system-level and workshop level in the automated system.
PROFIBUS is a general open standard in IEC 61158 and IEC 61784, uses the application apparatus that is in upstream flow journey (comprising raw-material transportation and storage) and the downstream process flow process (comprising logistics and packing) widely.It is that the device of unifying for all Departments of Automation of process plant provides point-to-point, compatible conforming communication platform and fieldbus networks.
The long-range input/output module of VI1TP is the slave station module of a PROFIBUS-DP, and the various field devices that are used for detecting and control industrial control system are as input, the output of digital quantities such as sensor, button, pilot lamp, valve, transmitter.According to the application scenario of digital quantity signal, product is divided into digital quantity input and digital quantity output type by model; The way of output is divided transistor PNP output, the output of transistor NPN type, relay output type or the like.
PROFIBUS-DP slave station module need be the NPO of Profibus international organization registration ID number, registration GSD block configuration file, and behind the Profibus uniformity test, the popularization that could sell as the certified product of Profibus tissue.
By this agreement, controller each other, controller be via communicating by letter between network and the miscellaneous equipment, and it has become a kind of universal industrial standard.It has been arranged, and the opertaing device that different vendor produces can be linked to be industrial network, carries out Centralized Monitoring.
In general, product all reckons without the consistance that product versatility (consistance of product design) and software relate to both at home and abroad, and this makes troubles just for product up-gradation, seriation, variation.
Summary of the invention
The object of the present invention is to provide a kind of existing product performance that is better than, consider the remote I digital module of the band Profibus-DP bus interface of product versatility, upgrading.
In order to achieve the above object, technical scheme of the present invention is: hardware of the present invention comprises digital quantity input and two modules of digital quantity output and power supply, and wherein the IO digital quantity input module comprises: the input of IO digital quantity, the isolation of light lotus root, single-chip microcomputer, Porfibus-DP protocol chip (SPC3), Porfibus-DP network; IO digital quantity output module comprises: Porfibus-DP network transmission data, Porfibus-DP protocol chip (SPC3), single-chip microcomputer, light lotus root isolate, the output of IO digital quantity.
The mode that IO digital quantity input/output module electricity adopts is the switch vibration that RC adds the field effect pipe, and output power is big, and consumed power is little, and output 5V is the host CPU power supply, and other has a power supply to be got through the DC-DC conversion by 5V, is the communication interface circuit power supply.The two-way power supply is isolated fully.So no matter power supply or communication line have much interference to module, can not cause damage to innernal CPU.Software solidification of the present invention is in hardware CPU single-chip microcomputer.
Beneficial effect of the present invention: input, output signal at the digital quantity of field devices such as the various field devices that are used for connecting industrial control system such as sensor, button, pilot lamp, valve, transmitter can produce useful effect.
Description of drawings
Fig. 1 is the theory diagram of IO digital quantity input of the present invention and output module;
Fig. 2 is host CPU and a peripheral circuit schematic diagram among Fig. 1;
Fig. 3 is the concrete schematic circuit of digital input circuit among Fig. 1;
Fig. 4 is the concrete schematic circuit of digital quantity output circuit among Fig. 1;
Fig. 5 is IO numeral of the present invention input and output module main program flow chart;
Fig. 6 is IO digital quantity input of the present invention and output module interrupt routine process flow diagram.
Embodiment
Below in conjunction with accompanying drawing and a embodiment the present invention is done more detailed explanation than Cui.
The IO digital module comprises two blocks of Pcb:CPU plates and input/output board.
The unified design of CPU board hardware using, unified CPU board connects different input/output boards and constitutes different products, can add the dial-up selection mode with a cover software, adapts to different products.Input/output board comprises power unit and IO interface.
With reference to Fig. 1 and 2, this is the block diagram of IO digital quantity input and output circuit of the present invention.
After the Porfibus-DP network writes data 6 signal is reached Porfibus-DP protocol chip (SPC3) 7, import CPU single-chip microcomputer 8 into, isolate 9 through the light lotus root after, again by digital quantity output 10.
With reference to Fig. 2, this is the utility model host CPU circuit.Host CPU described here refers to single-chip microcomputer 4, receives and dispatches digital data on Porfibus-DP network 6, and controls the measurement or the output of digital data on the input/output board.
Described Porfibus-DP network, the communication modes of employing repeating query is used for system's cell level and on-scene communication between main website and the slave station.
Dial SW is used to measure the switching of electric current and voltage.
The mode that power circuit adopts is the switch vibration that RC adds the field effect pipe, and the input of 24V direct current exports two the tunnel by transformer, isolates fully, and one road 5V is the CPU power supply; Another road is positive and negative 14V; Other has one road 5V to be got by the DC-DC conversion.
With reference to Fig. 3, this is the schematic diagram of digital quantity input circuit 1 of the present invention.It comprises No. eight input circuits and photoelectricity isolation.
With reference to Fig. 4, this is the schematic diagram of digital quantity output circuit 10 of the present invention.It comprises that No. eight output circuits and light lotus root isolate.
With reference to Fig. 5, this is IO digital quantity input of the present invention and output module main program flow chart.
As shown in the figure, its flow process is as follows: beginning 11, be provided with interrupt 12, whether initialization (reading dial-up determining apparatus type and device address, detection light emitting diode, initialization SPC3) 13 judge to having new data to export 14, if output data is to equipment 15; If not, whether control single chip computer fetch equipment digital data 16 then, upgrades protocol chip SPC3 input block 17, has new diagnostic data 18 to judge, if not, turns back to whether new data output 14 is arranged; If, just enter and send diagnostic data to protocol chip SPC319, turn back to whether new output data 14 is arranged.
With reference to Fig. 6, this is IO analog quantity input of the present invention and output module interrupt routine process flow diagram.
As shown in the figure, its flow process is as follows: have interrupt to produce 20 and judge to entering/leave data exchange phase 21, if, enter corresponding processing program 22, enter overall control command interruption again and judge 23; If not, then directly enter overall control command and interrupt judging 23, if, enter corresponding processing program 24, enter again and tributary address is set interrupts judging 25; If not, then directly enter and tributary address is set interrupts judging 25, if, enter corresponding processing program 26, enter the new argument data interruption again and judge 27; If not, then directly enter the new argument data interruption and judge 27, if, enter corresponding processing program 28, enter new configuration data again and interrupt judging 29; If not, then directly enter new configuration data and interrupt judging 29, if, entering corresponding processing program 30, interrupt routine finishes again; If not, then directly interrupt routine end.
VI1TP digital remote amount input/output module is mainly used in the various field devices that connect in the industrial control system as input, the output signal of the digital quantity of field devices such as sensor, button, pilot lamp, valve, transmitter, and can communicate by the Profibus-DP network.Principal feature is as follows:
Adaptive Profibus-DP communication speed is supported 9.6kbps-12Mbps.
Support the DPV0 function of Profibus-DP fully.
Module working power and port power are isolated fully.
The accessory power supply power supply is adopted in input and output, guarantees that bus communication is not subjected to load effect.
Have higher Electromagnetic Compatibility and reliability.
Modular design, compact conformation, easy to use.
Degree of protection IP20.
VI1TP series digital remote amount input/output module comprises different digital quantity input/output modules of counting more than 6 kinds, but it but has only the shell of two kinds of different sizes, product design consistance with height, and different module correspondences all is a cover software, so it is product has very high modularization, also very convenient for the production of product.
Though the present invention describes with reference to the above embodiments; but those of ordinary skill in the art; will be appreciated that above embodiment is used for illustrating the present invention; should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense; so be not as limitation of the invention; as long as in connotation scope of the present invention, to the variation of above-described embodiment, the protection domain that distortion all will fall into claim of the present invention.
Claims (7)
1, the remote I digital module of band Profibus-DP bus interface, the various field devices that are used for connecting industrial control system are as the digital quantity signal of sensor, button, pilot lamp, valve, transmitter, comprise that digital quantity input and digital quantity export two modules and power supply; Wherein the IO digital quantity input module comprises: the input of IO digital quantity, light lotus root isolate, single-chip microcomputer; IO digital quantity output module comprises: single-chip microcomputer, light lotus root isolate, the output of IO digital quantity, it is characterized in that:
Described digital quantity input module has been set up Porfibus-DP protocol chip (SPC3), Porfibus-DP network; The digital quantity output module has been set up the Porfibus-DP network and has been write data, Porfibus-DP protocol chip (SPC3);
Digital quantity input 1 reaches the light lotus root with signal and isolates 2, isolate 2 through the light lotus root and import CPU single-chip microcomputer 3 into, single-chip microcomputer 3 receives that digital data sends to the data transmit-receive on Porfibus-DP protocol chip (SPC3) 4, the Porfibus-DP network 5, adopts the insulation blocking of light lotus root;
After the Porfibus-DP network writes data 6 signal is reached Porfibus-DP protocol chip (SPC3) 7, isolate by the light lotus root and to import CPU single-chip microcomputer 8 into, isolate 9 through the light lotus root after, digital quantity output 10;
Power supply is respectively to single-chip microcomputer and input/output module power supply;
Described IO digital module solidifies software of the present invention in hardware CPU single-chip microcomputer.
2, the remote I digital module of band Profibus-DP bus interface as claimed in claim 1 is characterized in that:
Described IO digital quantity input comprises No. eight input circuits and photoelectric isolating circuit.
3, the remote I digital module of band Profibus-DP bus interface as claimed in claim 1 is characterized in that:
Described IO analog quantity output comprises No. eight output circuits and photoelectric isolating circuit.
4, the remote I digital module of band Profibus-DP bus interface as claimed in claim 1 is characterized in that:
Described Porfibus-DP network, the communication modes of employing repeating query is used for system's cell level and on-scene communication between main website and the slave station.
5, the remote I digital module of band Profibus-DP bus interface as claimed in claim 1 is characterized in that:
Described digital module power supply, the mode of employing are the switch vibrations that RC adds the field effect pipe, and output 5V is main cpu power supply; Other has a power supply to be got through the DC-DC conversion by 5V, is the communication interface circuit power supply; Two road power supplys are isolated fully, and so no matter power supply or communication line have much interference to module, can not cause damage to inner cpu.
6, the remote I digital module of band Profibus-DP bus interface as claimed in claim 1 is characterized in that:
Described digital quantity input and output module main program flow, its flow process is as follows: beginning 11, interrupt response 12 is set, the house dog time 13 is set, initialization 14, trigger house dog 15 to whether having new output data 16 to judge, if arrive equipment 18 to confirmation of receipt 17, output data; If not, write SPC3 input block 19, then, enter SPC3 input block 20, whether have new diagnostic data 21 to judge, if not, turn back to whether new output data 16 is arranged to the input data that slave unit I/O obtains; If, just enter and send diagnostic data to SPC322, SPC3 diagnosis buffer zone renewal 23, turn back to whether new output data 16 is arranged.
7, the remote I digital module of band Profibus-DP bus interface as claimed in claim 1 is characterized in that:
Input of described digital quantity and output module interrupt routine flow process, its flow process is as follows: has and interrupts producing 20 and judge to entering/leave data exchange phase 21, if, enter corresponding processing program 22, enter overall control command interruption again and judge 23; If not, then directly enter overall control command and interrupt judging 23, if, enter corresponding processing program 24, enter again and tributary address is set interrupts judging 25; If not, then directly enter and tributary address is set interrupts judging 25, if, enter corresponding processing program 26, enter the new argument data interruption again and judge 27; If not, then directly enter the new argument data interruption and judge 27, if, enter corresponding processing program 28, enter new configuration data again and interrupt judging 29; If not, then directly enter new configuration data and interrupt judging 29, if, entering corresponding processing program 30, interrupt routine finishes 31 again; If not, then directly interrupt routine end 31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100297606A CN1845028A (en) | 2005-09-19 | 2005-09-19 | Long-distance IO digital value module with Profibus-DP bus interface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100297606A CN1845028A (en) | 2005-09-19 | 2005-09-19 | Long-distance IO digital value module with Profibus-DP bus interface |
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| CN1845028A true CN1845028A (en) | 2006-10-11 |
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| CNA2005100297606A Pending CN1845028A (en) | 2005-09-19 | 2005-09-19 | Long-distance IO digital value module with Profibus-DP bus interface |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601191A (en) * | 2012-03-19 | 2012-07-25 | 中国重型机械研究院有限公司 | Safety door control system of curling machine of rewinding unit |
| CN104750003A (en) * | 2015-03-27 | 2015-07-01 | 南京天溯自动化控制系统有限公司 | Smart on-off input output module and control method thereof |
| CN107102921A (en) * | 2017-03-23 | 2017-08-29 | 北京航天自动控制研究所 | It is a kind of towards the digital quantity monitoring method with I/O type digital quantity asynchronous ports SoC |
| CN109407612A (en) * | 2018-12-25 | 2019-03-01 | 中电智能科技有限公司 | Digital output card and digital quantity output system |
-
2005
- 2005-09-19 CN CNA2005100297606A patent/CN1845028A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601191A (en) * | 2012-03-19 | 2012-07-25 | 中国重型机械研究院有限公司 | Safety door control system of curling machine of rewinding unit |
| CN104750003A (en) * | 2015-03-27 | 2015-07-01 | 南京天溯自动化控制系统有限公司 | Smart on-off input output module and control method thereof |
| CN104750003B (en) * | 2015-03-27 | 2017-08-25 | 南京天溯自动化控制系统有限公司 | A kind of intelligent switch quantity input and output module and its control method |
| CN107102921A (en) * | 2017-03-23 | 2017-08-29 | 北京航天自动控制研究所 | It is a kind of towards the digital quantity monitoring method with I/O type digital quantity asynchronous ports SoC |
| CN107102921B (en) * | 2017-03-23 | 2020-05-12 | 北京航天自动控制研究所 | Digital quantity monitoring method for SoC (system on chip) with I/O (input/output) type digital quantity asynchronous port |
| CN109407612A (en) * | 2018-12-25 | 2019-03-01 | 中电智能科技有限公司 | Digital output card and digital quantity output system |
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