CN107065841B - A kind of system and method that the inputoutput data based on communication is shared - Google Patents
A kind of system and method that the inputoutput data based on communication is shared Download PDFInfo
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- CN107065841B CN107065841B CN201710422989.9A CN201710422989A CN107065841B CN 107065841 B CN107065841 B CN 107065841B CN 201710422989 A CN201710422989 A CN 201710422989A CN 107065841 B CN107065841 B CN 107065841B
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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
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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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
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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Abstract
The invention discloses the system and methods that a kind of inputoutput data based on communication is shared, system includes multiple unit control apparatus by network connection and the data server composition for carrying out shared data management, and unit control apparatus includes controller, input-output equipment and storage unit；Storage unit includes at least one shared data region SDA and at least one receives data area RDA, shared data region SDA is used to store the inputoutput data for sharing this unit control apparatus for other unit control apparatus, receives data area RDA and is used to store the inputoutput data shared from other unit control apparatus.The present invention realizes the shared of inputoutput data between different units control device by communication, avoids passing through hardwire outside control device to obtain the traditional approach of inputoutput data；The repetition setting of the input-output equipment of control system is reduced, while can realize the interactive application of entire control system data and the intelligent control based on data.
Description
Technical field
Shared the present invention relates to field of industrial automation control more particularly to a kind of inputoutput data based on communication
Method and system and method.
Background technique
Modern control system mostly uses greatly the distributed control structure of object-oriented, by system control tasks be decomposed into towards
Several unit control tasks of equipment are gone to complete by relatively independent unit control apparatus.And unit control apparatus is respective defeated
Enter output equipment and controller forms complete and independent unit control apparatus, no matter input-output equipment distance controller is more
Far, the controller that this unit control apparatus is accessed by external cabling is required.The input of two independent unit control apparatus
Sharing, exchange and utilizing across unit is not realized between output data.
It is existing meanwhile when needing such as two different unit control apparatus A and B while acquiring the same analog signals
Technology includes following two mode: (1) detecting the same signal using two identical sensors, a sensor signal is given
Unit control apparatus A, another sensor signal give unit control apparatus B；(2) using an analog quantity spread isolation dress
It sets, realizes that an analog sensor isolates the mode of two output signals and is respectively connected to two independent unit control dresses
It sets, but this mode still remains in addition to increasing equipment and wiring and also needs to handle analog signal between the two with reference to ground, the two
Between electrical isolation and jamproof problem.
Therefore, because traditional control system uses the distributed control structure of object-oriented, there is following problems:
1, each unit control apparatus is to control needs, requires the complete input-output equipment for establishing oneself and each
Unit control apparatus can only realize control by the data of itself detection, the information without considering correlation unit control device,
It thus cannot achieve association control, Compliance control and the intelligent control based on data.
2, since what industry spot feature, the input signal of control system and output controlled is likely distributed in farther awayly
Side, needs to lay longer control cable.On the other hand, even if two separate unit control devices of close proximity need to monitor
When same analog data, it must in addition increase the configuration of the acquisition module of sensor and Control system simulation amount, cause structure
Complexity and configuration increase.
Summary of the invention
It is shared that it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of inputoutput datas based on communication
System and method, to overcome in the prior art since each control device needs to be arranged complete and independent input-output equipment
And the defect transmitted of a large amount of signals control cables, it can be achieved that other control systems or remote date transmission application, add
The big application range and producing level of live inputoutput data, realizes controls that are based on data rather than being based only on signal
Mode.
The purpose of the present invention is achieved through the following technical solutions: a kind of inputoutput data based on communication is shared
Control system, including by network connection multiple unit control apparatus, the unit control apparatus include have network
The controller of communication interface and the input-output equipment connected to the controller for Industry Control scene inputoutput data, institute
The controller stated includes that storage unit or the controller are circumscribed with storage unit；
The storage unit includes at least one shared data region SDA and at least one receives data area RDA, institute
The shared data region SDA stated is used to store the input and output number of this unit control apparatus shared for other unit control apparatus
According to the reception data area RDA is used to store the inputoutput data shared from other unit control apparatus；
The unit control apparatus passes the correlated inputs output data in the SDA of shared data region by active mode
Transport to the reception data area RDA of other unit control apparatus；It, will or after the request for receiving other unit control apparatus
Inputoutput data in itself shared data region SDA sends the unit control apparatus for issuing request to, issues the list of request
The inputoutput data of acquisition is stored in the reception data area RDA of oneself by first control device；Or it actively receives and comes from it
The inputoutput data that its unit control apparatus is sent, and be stored in and receive data area RDA；Or it controls and fills to other units
It sets after sending data sharing request, receives the inputoutput data sent from other unit control apparatus, and be stored in reception
Data area RDA.
Preferably, the shared data region SDA and reception data area RDA are according to the type of inputoutput data point
To be multiple, the data type in inputoutput data transmission process according to demand carries out the transimission and storage of data.
Preferably, the inputoutput data includes but is not limited to switching value data and analog data.
Preferably, the system further includes a shared data server, the shared data server and unit
Control device is communicated；The shared data server is used for the input obtained and storage unit control device transmits every time
Output data；Also the permission of each unit control device is controlled simultaneously, including whether limits some unit control apparatus
The transmission of inputoutput data can be carried out with other unit control apparatus and limits some unit control apparatus and other lists
The transmission that first control device passes through active mode or the progress inputoutput data for sending request method.
A kind of inputoutput data based on communication shared control system passes through net between the unit control apparatus
Network connection, the unit control apparatus include having the controller of network communication interface and connected to the controller for acquiring
The input-output equipment of Industry Control scene inputoutput data, the controller include storage unit or the control
Device is circumscribed with storage unit；The control method includes data acquisition step and data sharing step；The data acquisition
Step includes following sub-step:
S11: the controller of each unit control device obtains the inputoutput data of respective input-output equipment respectively；
S12: controller saves the inputoutput data in step S11 to the reception data area RDA of storage unit；
The data sharing step includes one or more sub-step:
(1) unit control apparatus transmits the correlated inputs output data in the SDA of shared data region by active mode
To the reception data area RDA of other unit control apparatus；
(2) after the request for receiving other unit control apparatus, by the input and output number of itself shared data region SDA
According to the unit control apparatus for issuing request is sent to, the unit control apparatus for issuing request stores the inputoutput data of acquisition
In the reception data area RDA of oneself；
(3) inputoutput data sent from other unit control apparatus is actively received, and is stored in the reception of oneself
Data area RDA；
(4) it after sending data sharing request to other unit control apparatus, receives and is sent from other unit control apparatus
Inputoutput data, and be stored in oneself reception data area RDA.
Preferably, the shared data region SDA and reception data area RDA are according to the type of inputoutput data point
To be multiple, the data type in data transmission procedure according to demand carries out data transmission.
Preferably, the inputoutput data includes but is not limited to switching value data and analog data.
Preferably, the control system further includes a shared data server, the shared data server with
Unit control apparatus is communicated；The method further includes the data storing steps and data power of a shared data server
Limit setting steps；
The data storing steps of the shared data server include: that data server obtains simultaneously storage unit control dress
Set the inputoutput data transmitted every time；
The data permission setting steps include: that data server controls the permission of each unit control device
System, including limiting whether some unit control apparatus can carry out the transmission of data, and restriction with other unit control apparatus
The transmission that some unit control apparatus and other unit control apparatus pass through active mode or the carry out data for sending request method.
The beneficial effects of the present invention are:
(1) setting principle of control system is no longer based only on the complete and independent principle setting of controlled device, and may be used also
It is configured with the principle based on device location, breaks through the isolated of the closed control mode of control system and inputoutput data
Property.
(2) not only realize that the inputoutput data between two associated unit control apparatus is shared and exchanged, while can
It realizes that third party or teledata utilize, increases the utilization scope and producing level of live inputoutput data.
(3) inputoutput data is shared each other by network implementations for each unit control device, not only increases real-time
And reliability, it can also realize the association control between different units control device, meet automated control technology development
It is required that and intelligent control method of the realization based on data.
(4) when needing shared inputoutput data between different units control device, it can be realized by communication, in this way may be used
To avoid realized by hardwire inputoutput data acquire；The unit control apparatus setting of whole system can be reduced simultaneously
Quantity, the quantity including input-output equipment, be further simplified structure, reduce system cost.
(5) it effectively realizes the shared of inputoutput data, not only simplifies system and equipment, and further, there is item
The trouble diagnosibility of unit control apparatus can also be improved by Correlative data analysis in the case where part, the system of raising can
By property.
Detailed description of the invention
Fig. 1 is present system block diagram；
Fig. 2 is the method for the present invention flow chart.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing:
Unit control apparatus in the present embodiment is connected in a high speed network using high-speed communication means, when some list
When first control device needs the correlated inputs signal and output control data of other unit control apparatus, it can be realized by communication,
Such as pass through Ethernet (but being not limited to Ethernet).Current controller has stronger network communication interface, supports that high speed is logical
Telecommunication function and between different controllers data exchange function, can be realized by communication between different units control device defeated
Enter and output data exchange, shared and utilization.(in another embodiment, can connect in slow network)
Specifically, as shown in Figure 1, a kind of shared system and method for inputoutput data based on communication, including pass through
Network connection multiple unit control apparatus, the unit control apparatus include have network communication interface controller and with
The input-output equipment for being used to acquire Industry Control scene inputoutput data of controller connection, the controller include depositing
Storage unit or the controller are circumscribed with storage unit；Storage unit is included for controller in one of the embodiments,
Memory or buffer area, and in another embodiment, storage unit is the external memory of controller.
The storage unit includes at least one shared data region SDA(Share Data Area) and at least one
Receive data area RDA(Receive Data Area), the shared data region SDA supplies other unit controls for storing
The inputoutput data of this shared unit control apparatus of device processed, the reception data area RDA come from it for storing
The shared inputoutput data of its unit control apparatus；
The unit control apparatus passes the correlated inputs output data in the SDA of shared data region by active mode
Transport to the reception data area RDA of other unit control apparatus；It, will or after the request for receiving other unit control apparatus
Inputoutput data in itself shared data region SDA sends the unit control apparatus for issuing request to, issues the list of request
The inputoutput data of acquisition is stored in the reception data area RDA of oneself by first control device；Or it actively receives and comes from it
The inputoutput data that its unit control apparatus is sent, and be stored in and receive data area RDA；Or it controls and fills to other units
It sets after sending data sharing request, receives the inputoutput data sent from other unit control apparatus, and be stored in reception
Data area RDA.
Due to realizing, inputoutput data is shared between different units control device, and each unit control apparatus is no longer
One separate but complete control system, each unit control apparatus can obtain other correlation unit control devices by communication
Inputoutput data, reasonable layout, the division of labor that may be implemented Industry Control scene inputoutput data is clear, it is efficiently shared,
Coordinated control, make entire control system it is more simple, it is effective, association, meet modern control technology development requirement.
Wherein, controller supports communication function, entire distributed AC servo system system using high speed, general, standard communication interface
It is linked together between each unit control device in system using communication mode, realizes each control for thering is high-speed communicating network to connect
The shared function of inputoutput data between device processed.When some unit control apparatus needs the correlation of other unit control apparatus defeated
When entering output data, it can be realized by communication, such as pass through Ethernet (but being not only limited to Ethernet).
Also, in the present embodiment, the shared data region SDA and reception data area RDA is according to the class of data
Type is divided into multiple, and the data type in data transmission procedure according to demand carries out data transmission.For example, controller can be real
When existing data separation function, normal data and abnormal data be stored separately and separately transmitted, or by different devices
The data of part deposit in different memory blocks.
Further, in the present embodiment, the inputoutput data includes but is not limited to switching value data and analog quantity
Data；
Meanwhile unit control apparatus is set to Industry Control scene according to nearby principle,
Due to live feature, traditional control system is likely distributed in farther away place in the control of input signal and output
When, need to lay longer control cable；On the other hand, even if two separate unit control devices of close proximity need to monitor
When same analog data, it must in addition increase the configuration of the acquisition module of analog sensor and Control system simulation amount.And
Using the control method in the present embodiment, the setting principle of control system is no longer based only on the independent principle of controlled device and sets
It sets, and the principle for being also based on device location is configured, and breaks through the closed control mode of control system and input and output number
According to isolatism.
Optionally, in the present embodiment, the control system further includes a shared data server, the data
Server is connect by network with unit control apparatus；The data server is every for obtaining simultaneously storage unit control device
The data of secondary transmission；Also the permission of each unit control device is controlled simultaneously, including limits some unit control apparatus
Whether the transmission of data can be carried out with other unit control apparatus, and limit some unit control apparatus and other unit controls
Device processed increases the utilization of live inputoutput data by the transmission of active mode or the carry out data for sending request method
Range and producing level.
Based on the realization of above-mentioned control system, as shown in Fig. 2, to additionally provide a kind of input based on communication defeated for the present embodiment
The method of data sharing out, the control system that method is shared based on inputoutput data, the control system includes multiple lists
First control device, by network connection between the unit control apparatus, the unit control apparatus includes having network
The controller of communication interface and the input-output equipment connected to the controller for Industry Control scene inputoutput data, institute
The controller stated includes that storage unit or the controller are circumscribed with storage unit；The method includes data acquisition step
Rapid and data sharing step；The data acquisition step includes following sub-step:
S11: the controller of each unit control device obtains the inputoutput data of respective input-output equipment respectively；
S12: controller saves the inputoutput data in step S11 to the reception data area RDA of storage unit；
The data sharing step includes one or more sub-step:
(1) related data in the SDA of shared data region is transmitted to other lists by active mode by unit control apparatus
The reception data area RDA of first control device；
(2) after the request for receiving other unit control apparatus, by the input and output number of itself shared data region SDA
According to the unit control apparatus for issuing request is sent to, the data of acquisition are stored in oneself by the unit control apparatus for issuing request
Receive data area RDA；
(3) inputoutput data sent from other unit control apparatus is actively received, and is stored in the reception of oneself
Data area RDA；
(4) it after sending data sharing request to other unit control apparatus, receives and is sent from other unit control apparatus
Inputoutput data, and be stored in oneself reception data area RDA.
Accordingly, the shared data region SDA and reception data area RDA is divided into multiple according to the type of data,
Data type in data transmission procedure according to demand carries out data transmission and stores.
Accordingly, the inputoutput data includes but is not limited to switching value data and analog data；Unit control
Device is set to Industry Control scene according to nearby principle.
Accordingly, the control system further includes a shared data server, and the data server passes through net
Network is connect with unit control apparatus；The method further includes a data server data storing step and data priority assignation
Step；
Accordingly, the data storing steps of the data server include: that data server obtains simultaneously storage unit control
The data that device processed transmits every time；
Accordingly, the data permission setting steps include: permission of the data server to each unit control device
Controlled, including limit some unit control apparatus whether can with other unit control apparatus carry out data transmission, with
And some unit control apparatus and other unit control apparatus are limited by active mode or send request method progress data
Transmission.
The present embodiment is by taking two unit control apparatus A and B as an example, as shown in Fig. 2, passing through the shared input of communication therebetween
Output data principle is as follows: when unit control apparatus A needs the inputoutput data in unit control apparatus B, there are two types of sides
Formula is realized: (1) controller of unit control apparatus A actively passes through network and sends out request, the SDA of obtaining unit control device B
In inputoutput data, and be stored in the area RDA of unit control apparatus A；(2) or according to making an appointment, unit is controlled
Inputoutput data in oneself area SDA is actively passed through the RDA of communications to unit control apparatus A by the controller of device B
In.It is shared to realize inputoutput data between two unit control apparatus A and B.
Claims (9)
1. the shared system of a kind of inputoutput data based on communication, including controlling dress by multiple units of network connection
It sets, the unit control apparatus includes having the controller of network communication interface and connected to the controller for acquiring industry
The input-output equipment of live inputoutput data is controlled, the controller includes outside storage unit or the controller
It is connected to storage unit；It is characterized by:
The storage unit includes at least one shared data region SDA and at least one receives data area RDA, described
Shared data region SDA is used to store the inputoutput data for sharing this unit control apparatus for other unit control apparatus, institute
The reception data area RDA stated is used to store the inputoutput data shared from other unit control apparatus；
Correlated inputs output data in the SDA of shared data region is transmitted to by the unit control apparatus by active mode
The reception data area RDA of other unit control apparatus；Or after the request for receiving other unit control apparatus, by itself
Inputoutput data in the SDA of shared data region sends the unit control apparatus for issuing request to, issues the unit control of request
The inputoutput data of acquisition is stored in the reception data area RDA of oneself by device processed；Or it actively receives and comes from other lists
The inputoutput data that first control device is sent, and be stored in and receive data area RDA；Or it is sent out to other unit control apparatus
After sending data sharing to request, the inputoutput data sent from other unit control apparatus is received, and be stored in reception data
Region RDA.
2. a kind of shared system of inputoutput data based on communication according to claim 1, it is characterised in that: described
Shared data region SDA and receive data area RDA be divided into according to the type of inputoutput data it is multiple, in input and output number
The transimission and storage of data is carried out according to the data type in transmission process according to demand.
3. a kind of shared system of inputoutput data based on communication according to claim 1, it is characterised in that: described
Inputoutput data include digital data and analog data.
4. a kind of shared system of inputoutput data based on communication according to claim 1, it is characterised in that: described
System further include a shared data server, the shared data server is communicated with unit control apparatus；Institute
The shared data server stated is used for the inputoutput data managed and storage unit control device transmits every time；Simultaneously also to each
The permission of a unit control apparatus is controlled, including limits whether some unit control apparatus can control dress with other units
The transmission for carrying out inputoutput data is set, and limits some unit control apparatus and passes through masters with other unit control apparatus
Formula or the transmission for carrying out inputoutput data for sending request method.
5. a kind of shared system of inputoutput data based on communication according to claim 4, it is characterised in that: described
Shared data server can be taken on by some unit control apparatus with data management function.
6. a kind of shared method of inputoutput data based on communication, uses one as described in any one of claims 1 to 5
Inputoutput data shared system of the kind based on communication, it is characterised in that: the method includes data acquisition step and data
Shared step；
The data acquisition step includes:
S11: each unit control device obtains respectively respectively needs inputoutput data to be sharing；
S12: controller saves the inputoutput data in step S11 to the reception data area RDA of storage unit；
The data sharing step includes one or more sub-step:
(1) the correlated inputs output data in the SDA of shared data region is transmitted to it by active mode by unit control apparatus
The reception data area RDA of its unit control apparatus；
(2) after the request for receiving other unit control apparatus, the inputoutput data of itself shared data region SDA is sent out
The inputoutput data of acquisition is stored in connecing for oneself by the unit control apparatus for sending request, the unit control apparatus for issuing request
Receive data area RDA；
(3) inputoutput data sent from other unit control apparatus is actively received, and is stored in the reception data of oneself
Region RDA；
(4) after sending data sharing request to other unit control apparatus, reception sends defeated from other unit control apparatus
Enter output data, and is stored in the reception data area RDA of oneself.
7. a kind of shared method of inputoutput data based on communication according to claim 6, it is characterised in that: described
Shared data region SDA and receive data area RDA and be divided into according to the type of inputoutput data multiple, be transmitted across in data
Data type in journey according to demand carries out data transmission and stores.
8. a kind of shared method of inputoutput data based on communication according to claim 6, it is characterised in that: described
Inputoutput data include digital data and analog data.
9. a kind of shared method of inputoutput data based on communication according to claim 6, it is characterised in that: also wrap
Include a data storing steps and priority assignation step；
The data storing steps include: the input that shared data server obtains and storage unit control device transmits every time
Output data；
The priority assignation step includes: shared data server or some unit control apparatus with data management function
The permission of each unit control device is controlled, including whether limit some unit control apparatus can be with other unit controls
Device processed carries out the transmission of data, and limit some unit control apparatus and other unit control apparatus by active mode or
Send the transmission of the carry out data of request method.
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