CN105138390B - Apply the real-time data communication system and method between process monitoring control system and simulation support svstem - Google Patents
Apply the real-time data communication system and method between process monitoring control system and simulation support svstem Download PDFInfo
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- CN105138390B CN105138390B CN201510462614.6A CN201510462614A CN105138390B CN 105138390 B CN105138390 B CN 105138390B CN 201510462614 A CN201510462614 A CN 201510462614A CN 105138390 B CN105138390 B CN 105138390B
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Abstract
The invention discloses a kind of real-time data communication systems applied between process monitoring control system and simulation support svstem, including the OPC communication module communicated with process monitoring control system, with the DDE communication module of simulation support svstem communication and for by data are mutually converted in OPC communication module and DDE communication module data conversion module, and a kind of real-time data communication method applied between process monitoring control system and simulation support svstem, including communication data reception, data conversion and communication data transmission and etc..The present invention has the beneficial effect for the real-time communication merged and can be realized big data quantity for being able to achieve two kinds of different data exchanging mechanisms of OPC and DDE.
Description
Technical field
It is specifically a kind of to apply in process monitoring control system and emulation the present invention relates to a kind of data conversion communication field
Real-time data communication system and method between support system.
Background technique
ABB Freelance 2000 (process monitoring control system) is the comprehensive open control of one kind of ABB AB's production
System processed, the function of Distributed Control System (DCS) and the function of programmable control system (PLC) are melted into a whole, have simultaneously by it
The regulating power of standby DCS complexity analog loopback and friendly man-machine interface abundant, are widely used in the equipment of industrial product, power
The monitoring and control of device have good compatibility and extended capability.
Simulation support svstem is by carrying out modeling and simulating to the equipment of industrial product or power device with the reality of simulator
Border operational process, and modeling, model debugging and model running management are combined, can be in entire emulation cycle
Emulator system development person and end user provide an exploitation and running environment.
By combining ABB Freelance 2000 and simulation support svstem, the i.e. fortune in simulation support svstem realization device
Row simulation, then on Freelance 2000 finishing device monitoring control function, then the data communication both realized
The training simulators for completing a set of production equipment or power device, achieve the purpose that operator training.It is proposed by the present invention
A kind of means of communication applied between process monitoring control system ABB Freelance2000 and simulation support svstem be exactly in order to
Realize the high speed communication of big data quantity between the two.
For existing technology, realize that the communication of simulation support svstem and Freelance2000 mainly have DDE
(OLE for Process Control is used for process by (Dynamic Data Exchange) Dynamic cata exchange mechanism and OPC
The OLE of control) two ways.
Dynamic cata exchange (DDE) is a kind of data communication form that Microsoft provides, it is being applied using shared drive
Data exchange is carried out between program.When data communication, the application program for receiving information is referred to as client, provides the application program of information
Referred to as server.Its client and server-side are isolated operations, and the session between them is carried out via a channel.Two
DDE communication is established between program and is referred to as DDE session, and entire conversation procedure is not required to user and is carried out any interference by process control.As
A kind of means of the data sharing of application program nevertheless suffer from present and widely use and support.
OPC (OLE for process control) is an industrial standard, and OPC includes the mark of a whole set of interface, attribute and method
Quasi- collection, is used for process control and automated manufacturing system.OPC is built on OLE specification, it is provided for industrial control field
A kind of mechanism of data access of standard.OPC specification includes two parts of opc server and OPC client, and its essence is in hardware
" rule " of complete set is established between supplier and software developer, as long as following this set rule, data interaction is to the two
For be all it is transparent, hardware supplier is not necessarily to consider a variety of demands and transport protocol of application program, software developer also without
The essence and operating process of hardware need to be understood.
DDE is to be invented by Microsoft and provided earliest to realize the data exchange between two programs, in transmission number
According to measure it is small in the case where, this data transfer mode have the advantages that realize simply, high reliablity, data sharing abilities it is strong, institute
At present still by relatively broadly as the data exchange ways of system emulation support platform.OPC is by each hardware vendor earliest
The software interface standard between equipment and application program to realize different suppliers, keeps data exchange therebetween simpler
The purpose singly changed and propose, have become the default scheme of industry system interconnection at present.Therefore, realize that two kinds of different data are handed over
The real-time communication of system of changing planes merged and can be realized big data quantity is necessary.
Summary of the invention
It applies the purpose of the present invention is to solve the shortcomings of the above background art and to propose a kind of in process monitoring control
Real-time data communication system and method between system processed and simulation support svstem is able to achieve two kinds of different data exchanges of OPC and DDE
The fusion of mechanism and the real-time communication that can be realized big data quantity.
It a kind of is applied in process monitoring control system and simulation support svstem in order to achieve the goal above, provided by the invention
Between real-time data communication system, it is characterised in that：It is and imitative including the OPC communication module communicated with process monitoring control system
The DDE communication module of true support system communication and for mutually being turned data in OPC communication module and DDE communication module
The data conversion module changed.
As a preferred solution of the present invention, further include and OPC communication module, DDE communication module and data conversion module phase
Cache module even.
A kind of real-time data communication method applied between process monitoring control system and simulation support svstem, feature exist
In including the following steps：
1) creation communication configuration file, communication configuration file use the form of EXCEL electrical form, first row designated communication
The input and output attribute of variable, second is classified as the variable name of DDE communication mode, and third is classified as corresponding OPC variable name, the 4th column
For the remark information of variable；
2) parsing communication configuration file, configures DDE Communications service name, subject；
3) start DDE communication module, receive the communication data of simulation support svstem；
4) according to the OPC gateway resource ID of the project file of process monitoring control system, OPC communication module and process are configured
Communication between monitor control system；
5) start OPC communication module and the Refresh Data time of OPC communication module, receive process monitor control system are set
Communication data；
6) data conversion module starts in real time after receiving the communication data that DDE communication module and OPC communication module issue
Data exchange, specific method are：
6.1) for output variable, simulation support svstem is carried out using the constant rule not passed with DDE communication module real-time
Communication, i.e., when input variable value changes, simulation support svstem sends one " XTYP_ADVDATA " to DDE communication module
Message, DDE communication module start to receive data after receiving the message,
6.2) for input variable, after process monitoring control system changes the value of variable, one can be sent to OPC communication module
A " OnDataChange " message after OPC communication module receives the message, receives data, and data conversion module is communicated according to OPC
Client handle mark finds corresponding DDE communication handle, gives the data forwarding received to emulation support by DDE communication module
System.
Another kind applies the real-time data communication method between process monitoring control system and simulation support svstem, including such as
Lower step：
1) creation communication configuration file, communication configuration file use the form of EXCEL electrical form, first row designated communication
The input and output attribute of variable, second is classified as the variable name of DDE communication mode, and third is classified as corresponding OPC variable name, the 4th column
For the remark information of variable；
2) parsing communication configuration file, configures DDE Communications service name, subject；
3) start DDE communication module, receive the communication data of simulation support svstem；
4) according to the OPC gateway resource ID of the project file of process monitoring control system, OPC communication module and process are configured
Communication between monitor control system；
5) start OPC communication module and the Refresh Data time of OPC communication module, receive process monitor control system are set
Communication data；
6) data conversion module starts in real time after receiving the communication data that DDE communication module and OPC communication module issue
Data exchange, specific method are：
6.1) for output variable, simulation support svstem is carried out using the constant rule not passed with DDE communication module real-time
Communication, i.e., when input variable value changes, simulation support svstem sends one " XTYP_ADVDATA " to DDE communication module
Message, DDE communication module start to receive data, data are stored in cache module and according to the number received after receiving the message
According to data in real-time update cache module, data exchange module is according to the refresh time of setting, periodically by the number in cache module
According to pass through OPC module asynchronous write process monitoring control system；
6.2) for input variable, after process monitoring control system changes the value of variable, one can be sent to OPC communication module
A " OnDataChange " message after OPC communication module receives the message, receives data, and data conversion module is communicated according to OPC
Client handle mark finds corresponding DDE communication handle, gives the data forwarding received to emulation support by DDE communication module
System.
Further, the asynchronous write refers in data writing process, and process monitoring control system notifies OPC communication
Return is left after module, is not to wait for the write-in that OPC communication module completes communication data, after the completion of the write-in of OPC communication module, meeting
Communication data write-in result is passed to process monitoring control system by automatic notice OPC communication module.
Advantages of the present invention：After the present invention receives the communication data that simulation support svstem issues by DDE communication module, lead to
Data conversion module is crossed to be converted into OPC formatted data and be sent to process monitoring control system.It was received by OPC communication module
After journey monitor control system sends communication data, DDE formatted data is converted by data conversion module and is sent to emulation support
System.Realize the real-time data communication between simulation support svstem and process monitoring control system.The present invention, which has, to be able to achieve
The beneficial effect of the real-time communication merged and can be realized big data quantity of two kinds of different data exchanging mechanisms of OPC and DDE.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the working principle of the invention figure.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
Embodiment one：It is a kind of to apply in process monitoring control system (ABB Freelance 2000) and simulation support svstem
Between real-time data communication system, it is logical with simulation support svstem including the OPC communication module communicated with process monitoring control system
The DDE communication module of news, the data conversion mould for mutually being converted OPC communication module with data in DDE communication module
Block.
The real-time data communication method between process monitoring control system and simulation support svstem is applied to include the following steps：
1) creation communication configuration file, communication configuration file use the form of EXCEL electrical form, first row designated communication
The input and output attribute of variable, second is classified as the variable name of DDE communication mode, and third is classified as corresponding OPC variable name, the 4th column
For the remark information of variable；
2) parsing communication configuration file, configures DDE Communications service name, subject；
3) start DDE communication module, receive the communication data of simulation support svstem；
4) according to the OPC gateway resource ID of the project file of process monitoring control system, OPC communication module and process are configured
Communication between monitor control system；
5) start OPC communication module and the Refresh Data time of OPC communication module, receive process monitor control system are set
Communication data；
6) data conversion module starts in real time after receiving the communication data that DDE communication module and OPC communication module issue
Data exchange, specific method are：
6.1) for output variable, simulation support svstem is carried out using the constant rule not passed with DDE communication module real-time
Communication, i.e., when input variable value changes, simulation support svstem sends an XTYP_ADVDATA to DDE communication module and disappears
Breath, DDE communication module start to receive data after receiving the message；
6.2) for input variable, after process monitoring control system changes the value of variable, one can be sent to OPC communication module
A OnDataChange message after OPC communication module receives the message, receives data, and data conversion module communicates visitor according to OPC
Handle mark in family finds corresponding DDE communication handle, gives the data forwarding received to emulation support system by DDE communication module
System.
Embodiment two：As shown in Figure 1, of the invention applies at process monitoring control system (ABB Freelance 2000)
Real-time data communication system between simulation support svstem, including the OPC communication module communicated with process monitoring control system, with
The DDE communication module and be used to carry out data in OPC communication module and DDE communication module mutual that simulation support svstem communicates
The data conversion module of conversion further includes the caching mould being connected with OPC communication module, DDE communication module and data conversion module
Block.
Fig. 2 is the working principle of the invention figure：
The real-time data communication method between process monitoring control system and simulation support svstem is applied to include the following steps：
1) creation communication configuration file, communication configuration file use the form of EXCEL electrical form, first row designated communication
The input and output attribute of variable, second is classified as the variable name of DDE communication mode, and third is classified as corresponding OPC variable name, the 4th column
For the remark information of variable；
2) parsing communication configuration file, configures DDE Communications service name, subject, if DDE configuration is wrong, can prompt
" DDE configuration error " information, returns to simulation support svstem at this time, checks whether communication data configuration file is wrong or emulates branch
Whether support system enters united dish operating status, after checking that modification is errorless, starts DDE communication module, complete DOC communication module with
Emulate the connection of support platform；
3) start DDE communication module, receive the communication data of simulation support svstem；
4) according to the OPC gateway resource ID of the project file of process monitoring control system, OPC communication module and process are configured
Communication between monitor control system, if OPC configuration is wrong, software can prompt " OPC configuration error " information, should return at this time
Journey monitor control system checks whether communication data configuration file is wrong or whether starts process monitoring control system, examines
Look into modification it is errorless after, starting OPC communication, complete DOC communication software and process monitoring control system connection；
5) start OPC communication module and the Refresh Data time of OPC communication module, receive process monitor control system are set
Communication data；
6) data conversion module starts in real time after receiving the communication data that DDE communication module and OPC communication module issue
Data exchange, specific method are：
6.1) for output variable, simulation support svstem is carried out using the constant rule not passed with DDE communication module real-time
Communication, i.e., when input variable value changes, simulation support svstem sends one " XTYP_ADVDATA " to DDE communication module
Message, DDE communication module start to receive data, data are stored in cache module and according to the number received after receiving the message
According to data in real-time update cache module, data exchange module is according to the refresh time of setting, periodically by the number in cache module
According to by OPC module asynchronous write process monitoring control system, i.e., in data writing process, process monitoring control system is notified
Return is left after OPC communication module, is not to wait for the write-in that OPC communication module completes communication data, has been written in OPC communication module
Cheng Hou can notify OPC communication module automatically, and communication data write-in result is passed to process monitoring control system；
6.2) for input variable, after process monitoring control system changes the value of variable, one can be sent to OPC communication module
A " OnDataChange " message after OPC communication module receives the message, receives data, and data conversion module is communicated according to OPC
Client handle mark finds corresponding DDE communication handle, gives the data forwarding received to emulation support by DDE communication module
System.
Advantage of the invention is embodied in：
DDE is a kind of communication mode based on message processing facility, is communicated using the constant rule not passed with the external world.
However, the data variation for operating in the mathematical model of emulation support platform is very fast, especially accelerating model running speed
In the case of, for example it is assumed that the setting model speed of service is 100ms, i.e. a data changed within one second time up to 10 times,
DDE will send ten data to customer side, and customer side then needs to receive 10 times.This data transmission mechanism is for volume of transmitted data
Lesser model be to meet the requirements and be also it is very reasonable, it is still, this for there is the model of big data quantity transmission requirement
Situation will be no longer applicable in.Because after data volume reaches certain upper limit, since the processing capacity of DDE module is limited, data easily occur
The case where sending delay or losing.Present invention employs the mechanism of " access of standing ", that is, receive simulation support svstem and be transmitted across
After the data come, the data-pushing is not given to OPC module immediately, but open up one piece of cache module, by all numbers received
Wherein according to variable storage, a time is set, such as 1 second, within this 1 second time, DDE module still can be continual
Value after data variable is changed sends over, constantly heavy in 1 second time by the variate-value before rear received value covering
Multiple above-mentioned work, after 1 second, the value in cache module is passed to OPC communication module again by data conversion module, is then forwarded to later
ABB Freelance2000 as OPC client.Accordingly, with respect to having to wait for, ABB Freelance2000 operation is whole
The synchronous communication that could return after completing, asynchronous communication it is more efficient, be suitable for the same opc server of more clients access with
The occasion of mass data.
On the other hand, for being connect with general emulation support platform the case where, in the data exchanged, the overwhelming majority
Data, which are mathematical models, is sent to host computer after emulation support platform operation, only a small number of values for being related to operation panel be by
Host computer passes to emulation platform.That is, most of data are output quantities for emulation support platform, input quantity is only accounted for very
Few a part.In the present invention, the input for the real-time for keeping emulation support platform operation to respond, to emulation support platform
Amount remains DDE treatment mechanism.That is, in data exchange process, two kinds carried out respectively for input, output quantity are parallel not
Same message processing facility, has merged the respective advantage of two methods well, solves DDE communication module processing data capability
Insufficient problem, and two kinds of communication modes of DDE and OPC are combined very much with open arms, for needing to realize in both differences
The realization exchange that big data quantity is carried out under data transmission mechanism has obviously effect.
The above described is only a preferred embodiment of the present invention, not being done in any form to structure of the invention
Limitation.Any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention,
In the range of still falling within technical solution of the present invention.
Claims (3)
1. a kind of real-time data communication system applied between process monitoring control system and simulation support svstem, feature exist
In：Including the OPC communication module communicated with process monitoring control system, the DDE communication module communicated with simulation support svstem, with
And the data conversion module for mutually being converted data in OPC communication module and DDE communication module, further include and OPC
The cache module that communication module, DDE communication module are connected with data conversion module, this application is in process monitoring control system and imitates
The course of work of real-time data communication system between true support system includes the following steps：
1) creation communication configuration file, communication configuration file use the form of EXCEL electrical form, first row designated communication variable
Input and output attribute, second is classified as the variable name of DDE communication mode, and third is classified as corresponding OPC variable name, and the 4th is classified as change
The remark information of amount；
2) parsing communication configuration file, configures DDE Communications service name, subject；
3) start DDE communication module, receive the communication data of simulation support svstem；
4) according to the OPC gateway resource ID of the project file of process monitoring control system, OPC communication module and process monitoring are configured
Communication between control system；
5) start OPC communication module and the Refresh Data time of OPC communication module is set, receive process monitor control system leads to
Interrogate data；
6) data conversion module starts real time data after receiving the communication data that DDE communication module and OPC communication module issue
Exchange, specific method are：
6.1) for output variable, simulation support svstem carries out real-time communication with DDE communication module using the constant rule not passed,
I.e. when input variable value changes, simulation support svstem sends an XTYP_ADVDATA message to DDE communication module,
DDE communication module starts to receive data after receiving the message；
6.2) for input variable, after process monitoring control system changes the value of variable, one can be sent to OPC communication module
OnDataChange message after OPC communication module receives the message, receives data, data conversion module is according to OPC communication clients
Handle mark finds corresponding DDE communication handle, gives the data forwarding received to emulation support system by DDE communication module
System.
2. the real-time data communication according to claim 1 applied between process monitoring control system and simulation support svstem
System, it is characterised in that：
6.1) for output variable, simulation support svstem carries out real-time communication with DDE communication module using the constant rule not passed,
I.e. when input variable value changes, simulation support svstem sends an XTYP_ADVDATA message to DDE communication module,
DDE communication module starts to receive data after receiving the message, data is stored in cache module and real according to the data received
Data in Shi Gengxin cache module, data exchange module periodically lead to the data in cache module according to the refresh time of setting
Cross OPC module asynchronous write process monitoring control system.
3. the real-time data communication according to claim 2 applied between process monitoring control system and simulation support svstem
System, it is characterised in that：The asynchronous write refers to that in data writing process, process monitoring control system notifies OPC communication
Return is left after module, is not to wait for the write-in that OPC communication module completes communication data, after the completion of the write-in of OPC communication module, meeting
Communication data write-in result is passed to process monitoring control system by automatic notice OPC communication module.
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| CN108519842A (en) * | 2018-04-17 | 2018-09-11 | 北京航空航天大学 | A kind of motion simulator control system |
| CN117033252B (en) * | 2023-10-09 | 2024-04-12 | 中核武汉核电运行技术股份有限公司 | Combined simulation communication system based on opcua |
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