CN206863569U - A kind of Process Control System for providing multiple standards interface - Google Patents
A kind of Process Control System for providing multiple standards interface Download PDFInfo
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- CN206863569U CN206863569U CN201720782082.9U CN201720782082U CN206863569U CN 206863569 U CN206863569 U CN 206863569U CN 201720782082 U CN201720782082 U CN 201720782082U CN 206863569 U CN206863569 U CN 206863569U
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- Prior art keywords
- opc
- control system
- interfaces
- interface
- multiple standards
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Abstract
The utility model discloses a kind of Process Control System for providing multiple standards interface, including controller, communication interface and controlled device, communication interface includes input and output I/O interfaces, RS232/485 communication interfaces and OPC communication interfaces, controller includes data storage cell, data sharing unit and control unit, the data storage cell includes being connected respectively I/O interfaces, the I/O input stores of RS232/485 communication interfaces and OPC communication interfaces, RS232/485 input stores, OPC input stores, each input store is all connected to data sharing unit, the data sharing unit is connected to control unit.The utility model has advantages below compared with prior art：Multiple standards interface is provided in system, is adapted to the variation of field apparatus；Common data memory is established in the controller, and multiple interfaces are effectively subjected to unitized processing.
Description
Technical field
A kind of engineering control system is the utility model is related to, more particularly to a kind of multiple standards interface of providing
Process Control System.
Background technology
Programmable logic controller (PLC) PLC is more and more applied in industrial production, and PLC can individually control one
Mini-system, external hanging type equipment can also be regarded and be used in already present system, before PLC is applied to actual production, needed
To pass through simulating, verifying, to judge the validity of designed control algolithm.Existing PLC control system is provided
Communication interface form it is single, system portability it is poor.
Utility model content
Technical problem to be solved in the utility model is the provision of a kind of communication interface diversification of forms, system can
The good Process Control System for providing multiple standards interface of transplantability.
The utility model is that solve above-mentioned technical problem by the following technical programs：One kind provides multiple standards and connect
The Process Control System of mouth, it is characterised in that including controller, communication interface and controlled device three parts, the communication interface
Including input and output I/O interfaces, RS232/485 communication interfaces and OPC communication interface three types, the controller includes data
Memory cell, data sharing unit and control unit, the data storage cell include depositing corresponding to the I/O inputs of I/O interfaces
Reservoir, the RS232/485 input stores corresponding to RS232/485 communication interfaces, and the OPC corresponding to OPC communication interfaces
Input store, I/O interfaces, RS232/485 communication interfaces and the OPC communication interfaces of the communication interface are connected respectively
To I/O input stores, RS232/485 input stores, OPC input stores, I/O input stores, RS232/485 inputs
Memory, OPC input stores are all connected to data sharing unit, and the data sharing unit is connected to control unit.
As the technical scheme of optimization, the controlled device includes the scattered control system with RS232/485 interfaces, showed
Field device, and OPC terminals, the controller are connected to OPC terminals by OPC communication interfaces, and the controller passes through
RS232/485 communication interfaces are connected to scattered control system, and field apparatus is connected to scattered control system.
As the technical scheme of optimization, the OPC communication interfaces use opc server.
As the technical scheme of optimization, the controller also includes power module.
As the technical scheme of optimization, the power module is provided with dual redundant current supply circuit, and two-way power supply is taken respectively from not
Same power supply unit.
As the technical scheme of optimization, two-way power supply is 24V dc sources.
As the technical scheme of optimization, diode, the just extremely normal work of diode are respectively provided with the loop of two-way power supply
The direction that electric current flows into when making, the direction that electric current flows out when negative pole is normal work.
As the technical scheme of optimization, indicator of the power supply status is provided with the loop of two-way power supply.
As the technical scheme of optimization, the controller also includes communication module.
The utility model has advantages below compared with prior art：Multiple standards interface, Ke Yishi are provided in system
Answer the variation of field apparatus；Common data memory is established in the controller, and multiple interfaces are effectively subjected to unitized place
Reason；Emulation and On-line Control can extract data by common data memory, realize the unified management of variable information；Emulation
Obtained control algolithm is stored in control circuit unit, and control circuit unit realizes is used directly in line traffic control by the parameter of emulation
System, effectively the on-line debugging by the emulation of control system and control algolithm is united, by the improvement of hardware circuit significantly
The time for building algorithm again is reduced, can also effectively reduce error rate, improves the operating efficiency of commissioning staff.
Brief description of the drawings
Fig. 1 is the principle schematic for the Process Control System that the utility model provides multiple standards interface.
Fig. 2 is the entity schematic diagram for the Process Control System that the utility model provides multiple standards interface.
Fig. 3 is the dual redundant power supply schematic diagram for the Process Control System that the utility model provides multiple standards interface.
Embodiment
Embodiment of the present utility model is elaborated below, the present embodiment using technical solutions of the utility model before
Put and implemented, give detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited
In following embodiments.
As depicted in figs. 1 and 2, present embodiments provide multiple standards interface Process Control System include controller,
Communication interface and controlled device three parts.
Wherein, the controlled device refers to the live controlled device of actual field apparatus or emulation, receives from control
The control of control instruction implementation process or emulation of device.Controlled device includes the scattered control system with RS232/485 interfaces, showed
Field device, and OPC (industrial standard OLE for Process Control) terminal.
The communication interface include input and output I/O interfaces, the RS232/485 communication interfaces based on Modbus agreements and
OPC communication interface three types, the controller are connected to controlled device by communication interface.Communication interface is controller and quilt
The output of controlled device, is transferred to controller, the controlled quentity controlled variable of controller is transferred to by the bridge of information transmission between control object
Controlled device, so as to realize a complete closed-loop control.Specifically, the controller is connected to OPC by OPC communication interfaces
Terminal, the controller are connected to scattered control system by RS232/485 communication interfaces, and field apparatus is connected to decentralised control
System.The OPC communication interfaces use opc server.
The controller includes data storage cell, data sharing unit and control unit.Data sharing unit is realized not
With being uniformly processed for communication interface institute's gathered data.The data storage cell includes the I/O input storages corresponding to I/O interfaces
Device, the RS232/485 input stores corresponding to RS232/485 communication interfaces, and it is defeated corresponding to the OPC of OPC communication interfaces
Enter memory, I/O interfaces, RS232/485 communication interfaces and the OPC communication interfaces of the communication interface are connected respectively
I/O input stores, RS232/485 input stores, OPC input stores, I/O input stores, RS232/485 inputs are deposited
Reservoir, OPC input stores are all connected to data sharing unit, and the data sharing unit is connected to control unit.
The utility model provides multiple standards data acquisition communication interface：I/O interfaces, RS232/485 communication interfaces
And OPC communication interfaces, and the multiple standards data acquisition communication interface is connected to data sharing unit and realizes interface
Unitized processing, only need to update the various corresponding data storages of interface in controller：I/O input stores, RS232/485 are defeated
Enter the data in memory, OPC input stores, you can the control strategy that directly and quickly transplanting obtains by emulation, to quilt
Control object and carry out process control, substantially reduce the time for building algorithm again, can also effectively reduce error rate, improve debugging
The operating efficiency of personnel.
Referring to Fig. 3, the controller also includes power module and communication module.There is provided dual redundant confession for the power module
Electrical circuit, including power supply A and power supply B, power supply A and power supply B are taken respectively from different power supply units, and it is same to prevent two-way power supply
When power-off cause the situation of system cut-off, power supply A and power supply B are 24V dc sources.
Power supply A is identical with power supply B structure, sets diode in loop, diode just extremely normal work when electric current stream
The direction entered, the direction that electric current flows out when negative pole is normal work, prevents electric current and reversely burns out PLC, so as to ensure system
Safe and continuous operation.Indicator of the power supply status is additionally provided with electric power loop, is respectively used to indicate A, B two-way power supply
Whether normal operating condition is in.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
- A kind of 1. Process Control System for providing multiple standards interface, it is characterised in that including controller, communication interface and Controlled device three parts, the communication interface include input and output I/O interfaces, RS232/485 communication interfaces and OPC communication interfaces Three types, the controller include data storage cell, data sharing unit and control unit, the data storage cell bag I/O input stores, the RS232/485 input stores corresponding to RS232/485 communication interfaces corresponding to I/O interfaces are included, And the OPC input stores corresponding to OPC communication interfaces, I/O interfaces, the RS232/485 communication interfaces of the communication interface And OPC communication interfaces are connected respectively I/O input stores, RS232/485 input stores, OPC input stores, I/O input stores, RS232/485 input stores, OPC input stores are all connected to data sharing unit, the data Shared cell is connected to control unit.
- 2. the Process Control System as claimed in claim 1 for providing multiple standards interface, it is characterised in that described controlled Object includes the scattered control system with RS232/485 interfaces, field apparatus, and OPC terminals, the controller pass through OPC communication interfaces are connected to OPC terminals, and the controller is connected to scattered control system by RS232/485 communication interfaces, existing Field device is connected to scattered control system.
- 3. the Process Control System as claimed in claim 1 for providing multiple standards interface, it is characterised in that the OPC Communication interface uses opc server.
- 4. the Process Control System as claimed in claim 1 for providing multiple standards interface, it is characterised in that the control Device also includes power module.
- 5. the Process Control System as claimed in claim 4 for providing multiple standards interface, it is characterised in that the power supply mould Block is provided with dual redundant current supply circuit, and two-way power supply is taken respectively from different power supply units.
- 6. the Process Control System as claimed in claim 5 for providing multiple standards interface, it is characterised in that two-way power supply It is 24V dc sources.
- 7. the Process Control System as claimed in claim 4 for providing multiple standards interface, it is characterised in that two-way power supply Loop in be respectively provided with diode, diode just extremely normal work when the direction that flows into of electric current, when negative pole is normal work The direction of electric current outflow.
- 8. the Process Control System as claimed in claim 4 for providing multiple standards interface, it is characterised in that two-way power supply Loop on be provided with indicator of the power supply status.
- 9. the Process Control System as claimed in claim 1 for providing multiple standards interface, it is characterised in that the control Device also includes communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782082.9U CN206863569U (en) | 2017-06-30 | 2017-06-30 | A kind of Process Control System for providing multiple standards interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782082.9U CN206863569U (en) | 2017-06-30 | 2017-06-30 | A kind of Process Control System for providing multiple standards interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206863569U true CN206863569U (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720782082.9U Expired - Fee Related CN206863569U (en) | 2017-06-30 | 2017-06-30 | A kind of Process Control System for providing multiple standards interface |
Country Status (1)
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| CN (1) | CN206863569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113467281A (en) * | 2021-07-05 | 2021-10-01 | 上海航天计算机技术研究所 | Sequence control device compatible with multiple types of controlled objects |
-
2017
- 2017-06-30 CN CN201720782082.9U patent/CN206863569U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113467281A (en) * | 2021-07-05 | 2021-10-01 | 上海航天计算机技术研究所 | Sequence control device compatible with multiple types of controlled objects |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20190630 |