CN107065841A - A kind of shared system and method for inputoutput data based on communication - Google Patents
A kind of shared system and method for inputoutput data based on communication Download PDFInfo
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- CN107065841A CN107065841A CN201710422989.9A CN201710422989A CN107065841A CN 107065841 A CN107065841 A CN 107065841A CN 201710422989 A CN201710422989 A CN 201710422989A CN 107065841 A CN107065841 A CN 107065841A
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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 method that a kind of inputoutput data based on communication is shared, system includes being made up of multiple unit control apparatus of network connection and the data server of progress shared data management, and unit control apparatus includes controller, input-output equipment and memory cell；Memory cell includes at least one shared data region SDA and at least one reception data area RDA, shared data region SDA is used to deposit the inputoutput data for sharing this unit control apparatus for other unit control apparatus, and receiving data area RDA is used to deposit 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, it is to avoid obtain the traditional approach of inputoutput data by hardwire outside control device；The repetition for reducing the input-output equipment of control system is set, while the interactive application of whole control system data and the intelligent control based on data can be realized.
Description
Technical field
The present invention relates to field of industrial automation control, more particularly to a kind of inputoutput data based on communication is shared
Method and system and method.
Background technology
Modern control system mostly use object-oriented distributed control structure, 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 constitute complete and independent unit control apparatus with controller, no matter input-output equipment distance controller is more
Far, it is required for accessing the controller of this unit control apparatus by external cabling.The input of two independent unit control apparatus
Do not realize across the shared of unit, exchange and utilize between output data.
Meanwhile, it is existing when such as two different unit control apparatus A and B need to gather same analog signalses simultaneously
Technology includes following two modes：（1）Same signal is detected using two identical sensors, a sensor signal is given
Unit control apparatus A, another sensor signal gives unit control apparatus B；（2）Using an analog quantity spread isolation dress
Put, realize that an analog sensor isolates the mode of two output signals and is respectively connected to two independent unit control dresses
Put, but this mode except increase equipment and wiring in addition to, still exist also need to processing therebetween analog signal reference ground, the two
Between electrical isolation and jamproof problem.
Therefore, because traditional control system uses the distributed control structure of object-oriented, it there are problems that as follows：
1st, each unit control apparatus is required for setting up the complete input-output equipment and each unit of oneself to control needs
Control device can only realize control by the data of itself detection, the information without considering correlation unit control device, thus
Association control, Compliance control and the intelligent control based on data can not be realized.
2nd, due to industry spot feature, the input signal of control system and the ground being likely distributed in farther out of output control
Side is, it is necessary to lay longer control cable.On the other hand, even if two separate unit control devices of close proximity need monitoring
During same analog data, the configuration of sensor and the acquisition module of Control system simulation amount must be increased in addition, structure is caused
Complexity and configuration increase.
The content of the invention
It is shared it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of inputoutput data based on communication
System and method, to overcome in the prior art because each control device needs to set complete and independent input-output equipment
And the defect that a large amount of signal control cables are transmitted, the application of other control systems or remote date transmission can be achieved, plus
The application and producing level of big live inputoutput data, realize control 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 multiple unit control apparatus of network connection, described unit control apparatus includes having network
The controller of communication interface and the input-output equipment for the live inputoutput data of Industry Control being connected with controller, institute
The controller stated includes memory cell or described controller is circumscribed with memory cell；
Described memory cell includes at least one shared data region SDA and at least one receives data area RDA, described
Shared data region SDA is used for the inputoutput data for depositing this unit control apparatus shared for other unit control apparatus,
Described reception data area RDA is used to deposit the inputoutput data shared from other unit control apparatus；
Described unit control apparatus by the correlated inputs output data in the SDA of shared data region by active mode transmit to
The reception data area RDA of other unit control apparatus；Or after the request of other unit control apparatus is received, by itself
Inputoutput data in the SDA of shared data region sends the unit control apparatus for sending request to, sends the unit control of request
The inputoutput data of acquisition is stored in the reception data area RDA of oneself by device processed；Or actively receive from other lists
The inputoutput data that first control device is sent, and it is stored in reception data area RDA；Or sent out to other unit control apparatus
Send after data sharing request, receive the inputoutput data sent from other unit control apparatus, and be stored in reception data
Region RDA.
Preferably, described shared data region SDA and reception data area RDA are according to the type of inputoutput data point
For multiple, the transmission and storage of the data type progress data in inputoutput data transmitting procedure according to demand.
Preferably, described inputoutput data includes but is not limited to switching value data and analog data.
Preferably, described system also includes a shared data server, described shared data server and unit
Control device is communicated；Described shared data server is used for the input obtained and storage unit control device is transmitted every time
Output data；The authority also to 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 some unit control apparatus and other lists is limited
The transmission that first control device passes through active mode or the progress inputoutput data for sending request method.
Pass through net between a kind of shared control system of inputoutput data based on communication, described unit control apparatus
Network is connected, described unit control apparatus include the controller with network communication interface and be connected with controller for gathering
The input-output equipment of Industry Control scene inputoutput data, described controller includes memory cell or described control
Device is circumscribed with memory cell；Described control method includes data acquisition step and data sharing step；Described data acquisition
Step includes following sub-step：
S11：The controller of unit control device obtains the inputoutput data of respective input-output equipment respectively；
S12：Controller preserves the inputoutput data in step S11 to the reception data area RDA of memory cell；
Described 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 to it by active mode
The reception data area RDA of its unit control apparatus；
（2）After the request of other unit control apparatus is received, itself shared data region SDA inputoutput data is passed
The unit control apparatus for sending request is given, the inputoutput data of acquisition is stored in certainly by the unit control apparatus for sending request
Oneself reception data area RDA；
（3）The inputoutput data sent from other unit control apparatus is actively received, and is stored in the reception data of oneself
Region RDA；
（4）Send after data sharing request, received from the defeated of other unit control apparatus transmission to other unit control apparatus
Enter output data, and be stored in the reception data area RDA of oneself.
Preferably, described 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, described inputoutput data includes but is not limited to switching value data and analog data.
Preferably, described control system also includes shared data server, described shared data server with
Unit control apparatus is communicated；Described method also includes the data storing steps and data power of shared data server
Limit setting steps；
The data storing steps of described shared data server include：Data server is obtained and storage unit control device is every
The inputoutput data of secondary transmission；
Described data permission setting steps include：Data server is controlled to the authority of unit control device, bag
Include and limit whether some unit control apparatus can carry out the transmission of data with other unit control apparatus, and limit some list
First control device and transmission of other unit control apparatus by active mode or the carry out data for sending request method.
The beneficial effects of the invention are as follows：
（1）The setting principle of control system is no longer based only on the complete and independent principle of controlled device and set, and can be with base
It is configured in the principle of device location, breaks through the control mode of control system closing and the isolatism of inputoutput data.
（2）Not only realize that the inputoutput data between the unit control apparatus of two associations is shared with exchanging, while can
Realize that third party or teledata are utilized, increase the utilization scope and producing level of live inputoutput data.
（3）Unit control device by real-time performance, share each other by inputoutput data, not only increases real-time
And reliability, the association control between different units control device can also be realized, automated control technology development is met
It is required that and intelligent control method of the realization based on data.
（4）When shared inputoutput data is needed between different units control device, it can be realized, so may be used by communicating
Realize that inputoutput data is gathered to avoid passing through hardwire；The unit control apparatus that whole system can be reduced simultaneously is set
Quantity, include the quantity of input-output equipment, further simplify structure, reduction system cost.
（5）The shared of inputoutput data is effectively realized, not only simplifies system and equipment, and further, there is bar
By Correlative data analysis, the trouble diagnosibility of unit control apparatus can also be improved in the case of part, and the system of raising can
By property.
Brief description of the drawings
Fig. 1 is present system block diagram；
Fig. 2 is the inventive method flow chart.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
Unit control apparatus in the present embodiment is connected in an express network using high-speed communication means, when some unit control
When device processed needs correlated inputs signal and the output control data of other unit control apparatus, it can be realized by communicating, it is such as logical
Cross Ethernet（But it is not limited to Ethernet）.Current controller has stronger network communication interface, supports high-speed communication work(
Can and between different controllers data exchange function, can be realized by communicating between different units control device input and
Output data is exchanged, shared and utilization.（In another embodiment, it can be connected in slow network）
Specifically, as shown in figure 1, a kind of shared system and method for inputoutput data based on communication, including network is passed through
Multiple unit control apparatus of connection, described unit control apparatus include controller with network communication interface and with control
The input-output equipment for being used to gather the live inputoutput data of Industry Control of device connection, it is single that described controller includes storage
First or described controller is circumscribed with memory cell；In one of the embodiments, memory cell is depositing that controller is carried
Reservoir or buffer area, and in another embodiment, memory cell is the external memory of controller.
Described memory cell includes at least one shared data region SDA（Share Data Area）And at least one
Receive data area RDA（Receive Data Area）, described shared data region SDA, which is used to deposit, supplies other unit controls
The inputoutput data of this shared unit control apparatus of device processed, described reception data area RDA, which is used to deposit, comes from it
The shared inputoutput data of its unit control apparatus；
Described unit control apparatus by the correlated inputs output data in the SDA of shared data region by active mode transmit to
The reception data area RDA of other unit control apparatus；Or after the request of other unit control apparatus is received, by itself
Inputoutput data in the SDA of shared data region sends the unit control apparatus for sending request to, sends the unit control of request
The inputoutput data of acquisition is stored in the reception data area RDA of oneself by device processed；Or actively receive from other lists
The inputoutput data that first control device is sent, and it is stored in reception data area RDA；Or sent out to other unit control apparatus
Send after data sharing request, receive the inputoutput data sent from other unit control apparatus, and be stored in reception data
Region RDA.
Inputoutput data is shared between due to realizing 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 communicating
Inputoutput data, it is possible to achieve the reasonable layout of Industry Control scene inputoutput data, the division of labor clearly, it is efficiently shared,
Coordinate control, make whole control system it is more simple, effective, associate, meet modern control technology develop requirement.
Wherein, controller supports communication function, whole distributed AC servo system system using high speed, general, standard communication interface
Linked together between each unit control device in system using communication mode, realize 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 related defeated of other unit control apparatus
When entering output data, it can be realized by communicating, such as pass through Ethernet（But it is not only limited to Ethernet）.
Also, in the present embodiment, classes of the described shared data region SDA and reception data area RDA according to data
Type is divided into multiple, and the data type in data transmission procedure according to demand carries out data transmission.Such as, can be real in controller
During existing data separation function, normal data and abnormal data be stored separately and separately transmit, or by different devices
The data of part deposit in different memory blocks.
Further, in the present embodiment, described inputoutput data includes but is not limited to switching value data and analog quantity
Data；
Meanwhile, unit control apparatus is arranged at Industry Control scene according to nearby principle,
Due to live feature, traditional control system when the control of input signal and output is likely distributed in place farther out,
Need to lay longer control cable；On the other hand, even if two separate unit control devices of close proximity need to monitor together
During one analog data, the configuration of analog sensor and the acquisition module of Control system simulation amount must be increased in addition.And adopt
With the control method in the present embodiment, the setting principle of control system is no longer based only on the principle setting of controlled device independence,
And the principle for being also based on device location is configured, the control mode and inputoutput data of control system closing are broken through
Isolatism.
Alternatively, in the present embodiment, described control system also includes a shared data server, described data
Server is connected by network with unit control apparatus；Described data server is used to obtain and storage unit control device is every
The data of secondary transmission；The authority also to 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
Scope 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
Go out the method for data sharing, the control system that method is shared based on inputoutput data, described control system includes multiple lists
By network connection between first control device, described unit control apparatus, described unit control apparatus includes having network
The controller of communication interface and the input-output equipment for the live inputoutput data of Industry Control being connected with controller, institute
The controller stated includes memory cell or described controller is circumscribed with memory cell；Described method is walked including data acquisition
Rapid and data sharing step；Described data acquisition step includes following sub-step：
S11：The controller of unit control device obtains the inputoutput data of respective input-output equipment respectively；
S12：Controller preserves the inputoutput data in step S11 to the reception data area RDA of memory cell；
Described data sharing step includes one or more sub-step：
（1）Unit control apparatus transmits the related data in the SDA of shared data region to other unit controls by active mode
The reception data area RDA of device processed；
（2）After the request of other unit control apparatus is received, itself shared data region SDA inputoutput data is passed
The unit control apparatus for sending request is given, the data of acquisition are stored in the reception of oneself by the unit control apparatus for sending request
Data area RDA；
（3）The inputoutput data sent from other unit control apparatus is actively received, and is stored in the reception data of oneself
Region RDA；
（4）Send after data sharing request, received from the defeated of other unit control apparatus transmission to other unit control apparatus
Enter output data, and be stored in the reception data area RDA of oneself.
Accordingly, described shared data region SDA and receive data area RDA be divided into according to the type of data it is multiple,
Data type in data transmission procedure according to demand carries out data transmission and stored.
Accordingly, described inputoutput data includes but is not limited to switching value data and analog data；Unit is controlled
Device is arranged at Industry Control scene according to nearby principle.
Accordingly, described control system also includes a shared data server, and described data server passes through net
Network is connected with unit control apparatus；Described method also includes a data server data storing step and data priority assignation
Step；
Accordingly, the data storing steps of described data server include：Data server is obtained and storage unit control dress
Put the data transmitted every time；
Accordingly, described data permission setting steps include：Data server is carried out to the authority of unit control device
Control, including limit whether some unit control apparatus can carry out transmission and the limit of data with other unit control apparatus
Some fixed unit control apparatus carries out the transmission of data with other unit control apparatus by active mode or transmission request method.
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 kinds of sides
Formula is realized：（1）Unit control apparatus A controller actively sends out request, obtaining unit control device B SDA by network
In inputoutput data, and be stored in unit control apparatus A RDA areas；（2）Or according to making an appointment, unit is controlled
Device B controller is actively by RDA of the inputoutput data in oneself SDA area by communications to unit control apparatus A
In.Inputoutput data between two unit control apparatus A and B is realized to share.
Claims (9)
1. a kind of shared system of inputoutput data based on communication, including control to fill by multiple units of network connection
Put, described unit control apparatus include the controller with network communication interface and be connected with controller for gathering industry
The input-output equipment of the live inputoutput data of control, described controller is included outside memory cell or described controller
It is connected to memory cell；It is characterized in that：
Described memory cell includes at least one shared data region SDA and at least one receives data area RDA, described
Shared data region SDA is used to deposit the inputoutput data for sharing this unit control apparatus for other unit control apparatus, institute
The reception data area RDA stated is used to deposit the inputoutput data shared from other unit control apparatus；
Described unit control apparatus by the correlated inputs output data in the SDA of shared data region by active mode transmit to
The reception data area RDA of other unit control apparatus；Or after the request of other unit control apparatus is received, by itself
Inputoutput data in the SDA of shared data region sends the unit control apparatus for sending request to, sends the unit control of request
The inputoutput data of acquisition is stored in the reception data area RDA of oneself by device processed；Or actively receive from other lists
The inputoutput data that first control device is sent, and it is stored in reception data area RDA；Or sent out to other unit control apparatus
Send after data sharing request, receive the inputoutput data sent from other unit control apparatus, 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：It is 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 transmission and storage of data are carried out according to the data type in transmitting procedure according to demand.
3. a kind of shared system of inputoutput data based on communication according to claim 1, it is characterised in that：It is described
Inputoutput data include digital data and analog data.
4. a kind of shared method and system of inputoutput data based on communication according to claim 1, its feature exists
In：Described system also includes a shared data server, and described shared data server is carried out with unit control apparatus
Communication；Described shared data server is used for the inputoutput data managed and storage unit control device is transmitted every time；Together
When authority also to unit control device be controlled, including limit some unit control apparatus whether can be with other lists
First control device carries out the transmission of inputoutput data, and limits some unit control apparatus and lead to other unit control apparatus
Cross active mode or send the transmission of the progress inputoutput data of request method.
5. a kind of shared system of inputoutput data based on communication according to claim 4, it is characterised in that：It is described
The shared data server unit control apparatus that can have data management function by some take on.
6. the method that a kind of inputoutput data based on communication as any one of claim 1 to 5 is shared, its feature
It is：Described method includes data acquisition step and data sharing step；
Described data acquisition step includes：
S11：Unit control device is obtained respectively each needs shared inputoutput data；
S12：Controller preserves the inputoutput data in step S11 to the reception data area RDA of memory cell；
Described 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 to it by active mode
The reception data area RDA of its unit control apparatus；
（2）After the request of other unit control apparatus is received, itself shared data region SDA inputoutput data is sent out
The unit control apparatus of request is sent, the inputoutput data of acquisition is stored in connecing for oneself by the unit control apparatus for sending request
Receive data area RDA；
（3）The inputoutput data sent from other unit control apparatus is actively received, and is stored in the reception data of oneself
Region RDA；
（4）Send after data sharing request, received from the defeated of other unit control apparatus transmission to other unit control apparatus
Enter output data, and be 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：It is described
Shared data region SDA and receive data area RDA be divided into according to the type of inputoutput data it is multiple, in data transfer mistake
Data type in journey according to demand carries out data transmission and stored.
8. a kind of shared method of inputoutput data based on communication according to claim 6, it is characterised in that：It is 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；
Described data storing steps include：The input that shared data server is obtained and storage unit control device is transmitted every time
Output data；
Described priority assignation step includes：Shared data server or some there is the unit control apparatus of data management function
Whether the authority to unit control device is controlled, including 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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| CN111273541A (en) * | 2020-04-03 | 2020-06-12 | 四川谊田集群科技有限公司 | Control system and method of virtual redundant controller based on communication |
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| CN107065841B (en) | 2019-04-26 |
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