CN106647412A - Data sharing method between distributed controllers based on configuration element - Google Patents
Data sharing method between distributed controllers based on configuration element Download PDFInfo
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- CN106647412A CN106647412A CN201710035217.XA CN201710035217A CN106647412A CN 106647412 A CN106647412 A CN 106647412A CN 201710035217 A CN201710035217 A CN 201710035217A CN 106647412 A CN106647412 A CN 106647412A
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
- H04L67/1078—Resource delivery mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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Abstract
The invention provides a data sharing method between distributed controllers based on a configuration element. The data sharing method comprises the following steps: setting a sharing memory in each distributed controller; judging which data enters the sharing memory or not through a sharing element; carrying out data synchronization on nodes of the other distributed controllers; directly correlating the sharing element with an IO (Input/Output) channel of each distributed controller; storing inner data of the sharing element into an appointed sharing memory region corresponding to the distributed controller; directly participating in a configuration programming process of control logic; dynamically representing a real-time value of the sharing element in a configuration picture; realizing acquisition and output of appointed shared data through the sharing element; and synchronizing the shared data of the node of each distributed controller to sharing memory storage regions corresponding to the other nodes through a broadcast communication manner. By adopting the data sharing method, the flexible degree of sharing the data between the controllers is effectively improved, and influences on system network load and controller performances, caused by unnecessary data, can also be reduced.
Description
Technical field
The present invention relates to technical field of industrial automatic control, more particularly to a kind of distributed AC servo system based on configuration element
Data sharing method between device.
Background technology
Complex industrial control system is generally had spot sensor, controller and actuator using the distributed network architecture
Effect ground set so that resource-sharing and cooperating can be realized in region between the work station of different address.Due to complicated system
The control problem of system is complicated, controller node is various, and each thing being geographically distributed how is realized using distributed communication network
Between reason control unit information and control signal it is effectively shared be the field face a major issue.Ask for this
Topic, existing control system can mask the code tasks of data sharing, only often for the consideration of user-friendly interface
Engineer provides the function of control application development.However as control system function increasingly complex, parallel program development
Etc. the appearance of new demand, control engineers problem of concern there occurs transformation, and they are not only concerned about control algolithm
The exploitation of the control application such as design and configuration, also extremely focuses on the data syn-chronization and its communication efficiency of complex control program.
For the data sharing between distributed director, the configuration that control system's development business is provided in prior art is soft
Part instrument is usually used all global variables between the technological means local area network internal controller of broadcast communication and its real time data
Data synchronization updating is performed, the major defect of this mode is：
1st, there are many unnecessary network services, especially for complicated control task and parallel control task,
The problem improperly brought after data sharing between extensive control node is that volume of transmitted data increase causes network delay to increase,
In turn result in system entirety control performance to decline, real-time is reduced, or even affects the normal operation of control system.
2nd, the functional module of data sharing has been previously integrated in configuration software, and engineer can only be by specifying specific net
Section or controller node IP address come intervene data sharing configuration, its operation autonomy and flexibility it is still undesirable.
The content of the invention
The technical problem to be solved in the present invention, is to provide the number between a kind of distributed director based on configuration element
According to sharing method, the data sharing strategy that engineer is difficult between flexible configuration distributed director in prior art is solved, with
And the data sharing between controller affects big technical problem to grid load, controller performance；Effectively improve control
The degree of flexibility of data sharing between device, can also reduce unnecessary data sharing to grid load, the shadow of controller performance
Ring.
What the present invention was realized in：A kind of data sharing method between distributed director based on configuration element,
Shared drive is set in each distributed director, by shared element, judges which data enters shared drive, and and its
He carries out data syn-chronization by distributed director node；The shared element is directly associated with distributed director I/O channel, is shared
The shared drive region that the internal data store of element is specified in correspondence distributed director；Shared element has by graphic elements
The mode of sequence connection, directly participates in the configuration programming process of control logic, and the instantaneous value of shared element is dynamically presented on configuration
In picture, the acquisition and output to specifying shared data is realized by shared element, and shared data is transparent, can monitor on-line；
The shared data of each distributed director node is synchronized to corresponding shared interior in other nodes by way of broadcast communication
Deposit memory block.
Further, the configuration element is carried out the control function module of analog quantity or amount of logic operation, multiple element
Between orderly connection form the Logical Configuration program of system, different types of element is distinguished by component symbol mark, many
The element of individual same type is distinguished by element lower label；The configuration element includes input element, output element, strategic element
And shared element；The input element, output element, strategic element are used to write conventional Logical Configuration program；It is described common
Enjoying element includes shared input element and shared output element.
Further, the shared input element and shared output element：Include analog input/output element, number
Word amount input/output element, middle analog quantity input/output element and sandwich digit amount input/output element；The intermediate die
Analog quantity/digital quantity input element is located at input side, internal data can be transferred into strategic element or output element；The intermediate die
Analog quantity/digital output element is located at outlet side, for reading and storing the result of calculation of intermediate logic；The shared input unit
Part and shared output element：Can be added in Logical Configuration picture and participate in the editor of Logical Configuration program；Logical Configuration program
During operation, the real time data of itself can be dynamically shown in configuration picture；During Logical Configuration, similar element
Unique lower label will be automatically generated.
Further, the shared input/output element is the I/O channel pass of controller corresponding with industrial control system
Connection, and it is corresponding with specific physics shared drive address in controller；By shared input/output element, operating personnel's energy
Independently select specific data to be loaded into shared drive, and data interaction is carried out with other distributed directors；It is described shared defeated
Enter/output element and common input/output element be managed and distinguish in Memory Allocation storage according to the mode of subregion,
Each subregion is opened up corresponding storage region in controller internal memory and is corresponded to therewith.
Further, the data sharing mode in controller layer between multiple distributed directors is as follows：To each controller
Node configuration global sharing memory region, shared number of the global sharing memory region comprising all distributed director nodes
It is believed that the shared data that breath, the i.e. globally shared area of each controller node were both provided comprising local node, also comprising from it
The shared data of his node；
By the way of physical memory unified addressing, the global sharing memory space of all distributed directors is carried out determining
Justice；The data synchronization strategy of the shared drive be the shared data of each controller node by the way of broadcast communication, together
Walk in other nodes in the corresponding physical memory addresses of shared section key, while performing periodic data refresh operation.
Further, shared data is by sharing input element from the shared of correspondence distributed director in methods described
Obtain in internal memory, specially：S1, editorial logic configuration program, it is determined that needing the configuration element M for receiving shared data；
S2, the configuration mode connected in order using graphic elements, drag shared input element to Logical Configuration picture, connection
To in the configuration element M；
S3, the related information for configuring the shared input element, are linked to the shared drive ground that corresponding controller is specified
On location；
S4, operation logic configuration program, from the shared drive address specified Real-Time Sharing number is periodically read
According in dynamicalling update Logical Configuration picture, and its instantaneous value being included in the side of shared input element.
Further, shared data is to be written to correspondence distributed director by shared output element in methods described
Shared drive respective regions, specially：S1, editorial logic configuration program, selection needs the configuration element N of shared data, by it
Output data is used as shared data；
S2, the configuration mode connected in order using graphic elements, drag shared input element to Logical Configuration picture, connection
To in the configuration element N；
The related information of S3, the shared output element of configuration, is linked on the shared drive address that correspondence controller is specified；
S4, operation logic configuration program, by the real time data of shared output element transmit and store it is described specify be total to
Enjoy memory address；
S5, the shared data in the shared drive address specified periodically is synchronized into other controller node phases
The region of memory answered.
The invention has the advantages that：1st, engineer which controller, which data can be autonomously decided on and participates in distribution
Formula data sharing, so as to be effectively prevented from because the network load increase caused by improperly data sharing, control performance significantly drop
Low problem；
2nd, data sharing operations simple and flexible, meets the configuration programming custom of engineer, and communication data highly transparent,
Visualization is high, supports on-line monitoring.
Description of the drawings
With reference to the accompanying drawings in conjunction with the embodiments the present invention is further illustrated.
Fig. 1 is the schematic diagram of the data sharing method between the distributed director of the present invention.
Fig. 2 is the acquisition methods schematic flow sheet of shared data of the present invention.
Fig. 3 is the output intent schematic flow sheet of shared data of the present invention.
Specific embodiment
Refer to shown in Fig. 1 to Fig. 3, the data sharing method between a kind of distributed director based on configuration element,
Shared drive is set in each distributed director, by shared element, judges which data enters shared drive, and and its
He carries out data syn-chronization by distributed director node；The shared element is directly associated with distributed director I/O channel, is shared
The shared drive region that the internal data store of element is specified in correspondence distributed director；Shared element has by graphic elements
The mode of sequence connection, directly participates in the configuration programming process of control logic, and the instantaneous value of shared element is dynamically presented on configuration
In picture, the acquisition and output to specifying shared data is realized by shared element, and shared data is transparent, can monitor on-line；
The shared data of each distributed director node is synchronized to corresponding shared interior in other nodes by way of broadcast communication
Deposit memory block.
A kind of method for designing of shared element towards configuration data of the present invention, patrols for connecting the control that user writes
Collect the shared drive with corresponding controller.
Concrete function feature is as follows：
1st, the configuration element is carried out the control function module of analog quantity or amount of logic operation, having between multiple element
Sequence connects the Logical Configuration program to form system, and different types of element is distinguished by component symbol mark, multiple same types
Element distinguished by element lower label.The configuration element includes input element, output element, strategic element and shared unit
Part.The input element, output element, strategic element are used to write conventional Logical Configuration program.The shared element is one
Plant special configuration element, including shared input element and shared output element.
2nd, the identical point of the shared input/output element and common input/output element：
1. analog input/output element, digital quantity input/output element, middle analog quantity input/output unit are included
Part and sandwich digit amount input/output element；Middle analog quantity/digital quantity the input element is located at input side, can be by inside
Data transfer is to strategic element or output element；Middle analog quantity/digital output the element is located at outlet side, for reading
With the result of calculation of storage intermediate logic.
2. can be added in Logical Configuration picture and participate in the editor of Logical Configuration program；
3. when Logical Configuration program is run, the real time data of itself can be dynamically shown in configuration picture；
4. during Logical Configuration, similar element can all automatically generate unique lower label；
For example, No. 101 adder calculator element is represented by ADD 101, and its corresponding controller also will be its distribution
Corresponding memory headroom.
3rd, the difference of the shared input/output element and common input/output element is：
1. the common input/output element is I/O data point association corresponding with system process equipment, is responsible for from now
/ output real-time control data is read in field process equipment or device emulation model, the partial data not fully participates in distributed
The data sharing of controller；
2. the shared input/output element be controller corresponding with system I/O channel association, and with controller in
Specific physics shared drive address is corresponding.By shared input/output element, engineer can independently select specifically
Data are loaded into shared drive, and carry out data interaction with other distributed directors.
3. the shared input/output element and common input/output element in Memory Allocation storage according to subregion
Mode be managed and distinguish, each subregion is opened up corresponding storage region in controller internal memory and is corresponded to therewith.
For example, all of input/output element can be carried out subregion according to 26 letter characters of A-Z, and specifies S areas
To share the storage region of input/output element, remaining subregion is used to store the common corresponding data of input/output element,
S areas data can be provided for data sharing.Further, AO 003 can be used to indicate that No. 003 common analog output
Element；AOS 005 can be used to indicate that No. 005 S areas analog output element, i.e., No. 005 analog quantity shares output element.
(2), the data sharing method between the distributed director based on configuration element that the present invention is provided, Ling Yizhu
It is characterised by：The configuration mode connected in order using graphic elements, is realized to specifying altogether by shared input and output element
The acquisition and output of data are enjoyed, and shared data is transparent visible, can monitor on-line.
Concrete methods of realizing is as follows：
1st, the data sharing method in the present invention between the multiple distributed directors of controller layer is as follows：
1. to each controller node configuration global sharing memory region, the global sharing memory region includes all points
What the globally shared area of the shared data information of cloth controller node, i.e. each controller node both provided comprising local node
Shared data, also comprising the shared data from other nodes.
2. using the method for physical memory unified addressing, the global sharing memory space of all distributed directors is carried out
Definition.
3. the data synchronization strategy of the shared drive is the shared data of each controller node using broadcast communication
Mode, is synchronized in other nodes in the corresponding physical memory addresses of shared section key, while performing periodic data refreshes behaviour
Make.
2nd, specify shared data to be obtained from the shared drive of correspondence controller by sharing input element in the present invention
's.
Concrete steps method is as follows：
S1, editorial logic configuration program, it is determined that needing the configuration element M for receiving shared data；
By taking Fig. 1 as an example, strategic element B ' 001 is the configuration element of shared data to be received.
S2, the configuration mode connected in order using graphic elements, drag shared input element to Logical Configuration picture, connection
To in the configuration element M；
S3, the related information for configuring the shared input element, are linked to the shared drive ground that corresponding controller is specified
On location；
By taking Fig. 1 as an example, the shared input element " SI 001 " in work station K is associated with into the institute of node 1 on controller node K
Corresponding shared drive address, you can realize the configuration sharing to the shared data of controller node 1；
S4, operation logic configuration program, from the shared drive address specified Real-Time Sharing number is periodically read
According in dynamicalling update Logical Configuration picture, and its instantaneous value being included in the side of shared input element.
3rd, shared data is specified to be the shared drive phase that correspondence controller is written to by sharing output element in the present invention
Answer region.
Concrete steps method is as follows：
S1, editorial logic configuration program, selection needs the configuration element N of shared data, outputs it data as shared
Data；
S2, the configuration mode connected in order using graphic elements, drag shared input element to Logical Configuration picture, connection
To in the configuration element N；
By taking Fig. 1 as an example, strategic element B 001 and input element D ' 002 as provides the configuration element of shared data.
The related information of S3, the shared output element of configuration, is linked on the shared drive address that correspondence controller is specified；
By taking Fig. 1 as an example, the shared output element " SO 001 " in work station 1 is associated with controller node 1 to be used to deposit
The region of memory of the storage shared data of node 1, you can realize the configuration sharing to the data of strategic element B 001；By in work station K
Shared output element " SO ' 002 " is associated with controller node K the region of memory for being used for memory node K shared datas, you can real
Now to the configuration sharing of the data of input element D ' 002.
S4, operation logic configuration program, by the real time data of shared output element transmit and store it is described specify be total to
Enjoy memory address；
S5, the shared data in the shared drive address specified periodically is synchronized into other controller node phases
The region of memory answered.
In a word, the present invention not only inherits the advantage of broadcast communication data synchronous method, while also overcoming prior art
Above-mentioned deficiency.Data sharing strategy in the method between different physical controllers is in host computer by way of configuration element
What middle operation was realized, engineer can more autonomously decide on Information Sharing Strategy, select the data specified in multi-controller section
Data interaction is carried out between point, this mode not only can effectively improve the degree of flexibility of data sharing between controller, also can subtract
Few unnecessary data sharing is to grid load, the impact of controller performance.
Although the foregoing describing the specific embodiment of the present invention, those familiar with the art should manage
Solution, the specific embodiment described by us is merely exemplary, rather than for the restriction to the scope of the present invention, is familiar with this
The technical staff in field should be covered the present invention's in the equivalent modification and change made according to the spirit of the present invention
In scope of the claimed protection.
Claims (7)
1. the data sharing method between a kind of distributed director based on configuration element, it is characterised in that：In each distribution
Shared drive is set in formula controller, by shared element, judges which data enters shared drive, and with other distributed controls
Device node processed carries out data syn-chronization；The shared element is directly associated with distributed director I/O channel, the inside of shared element
The shared drive region that data storage is specified in correspondence distributed director；The side that shared element is connected in order by graphic elements
Formula, directly participates in the configuration programming process of control logic, and the instantaneous value of shared element is dynamically presented in configuration picture, passes through
Shared element realizes the acquisition and output to specifying shared data, and shared data is transparent, can monitor on-line；Each distributed control
The shared data of device node processed is synchronized to corresponding shared drive memory block in other nodes by way of broadcast communication.
2. the data sharing method between a kind of distributed director based on configuration element according to claim 1, its
It is characterised by：The configuration element is carried out the control function module of analog quantity or amount of logic operation, having between multiple element
Sequence connects the Logical Configuration program to form system, and different types of element is distinguished by component symbol mark, multiple same types
Element distinguished by element lower label；The configuration element includes input element, output element, strategic element and shares
Element；The input element, output element, strategic element are used to write conventional Logical Configuration program；The shared element bag
Include shared input element and shared output element.
3. the data sharing method between a kind of distributed director based on configuration element according to claim 2, its
It is characterised by：The shared input element and shared output element：Include analog input/output element, digital quantity input/
Output element, middle analog quantity input/output element and sandwich digit amount input/output element；Middle analog quantity/the numeral
Amount input element is located at input side, internal data can be transferred into strategic element or output element；Middle analog quantity/the numeral
Amount output element is located at outlet side, for reading and storing the result of calculation of intermediate logic；The shared input element and shared
Output element：Can be added in Logical Configuration picture and participate in the editor of Logical Configuration program；When Logical Configuration program is run,
The real time data of itself can be dynamically shown in configuration picture；During Logical Configuration, similar element all can be automatic
Ground generates unique lower label.
4. the data sharing method between a kind of distributed director based on configuration element according to claim 2, its
It is characterised by：The shared input/output element be controller corresponding with industrial control system I/O channel association, and with control
Specific physics shared drive address is corresponding in device processed；By shared input/output element, operating personnel can independently select
Specific data are loaded into shared drive, and carry out data interaction with other distributed directors；The shared input/output element
It is managed and distinguishes according to the mode of subregion in Memory Allocation storage with common input/output element, each subregion exists
Open up corresponding storage region in controller internal memory to correspond to therewith.
5. the data sharing method between a kind of distributed director based on configuration element according to claim 1, its
It is characterised by：Data sharing mode in controller layer between multiple distributed directors is as follows：To each controller node configuration
Global sharing memory region, shared data information of the global sharing memory region comprising all distributed director nodes,
The shared data that i.e. the globally shared area of each controller node both provided comprising local node, also comprising from other nodes
Shared data；
By the way of physical memory unified addressing, the global sharing memory space of all distributed directors is defined；
The data synchronization strategy of the shared drive be the shared data of each controller node by the way of broadcast communication, be synchronized to
In other nodes in the corresponding physical memory addresses of shared section key, while performing periodic data refresh operation.
6. the data sharing method between a kind of distributed director based on configuration element according to claim 2, its
It is characterised by：Shared data is obtained from the shared drive of correspondence distributed director by sharing input element in methods described
Take, specially：S1, editorial logic configuration program, it is determined that needing the configuration element M for receiving shared data；
S2, the configuration mode connected in order using graphic elements, drag shared input element to Logical Configuration picture, are connected to institute
In stating configuration element M；
S3, the related information for configuring the shared input element, are linked on the shared drive address that corresponding controller is specified；
S4, operation logic configuration program, from the shared drive address specified Real-Time Sharing data are periodically read, and are moved
State ground is updated in Logical Configuration picture, and its instantaneous value is included in the side of shared input element.
7. the data sharing method between a kind of distributed director based on configuration element according to claim 2, its
It is characterised by：Shared data is the shared drive that correspondence distributed director is written to by sharing output element in methods described
Respective regions, specially：S1, editorial logic configuration program, selection needs the configuration element N of shared data, outputs it data
As shared data；
S2, the configuration mode connected in order using graphic elements, drag shared input element to Logical Configuration picture, are connected to institute
In stating configuration element N；
The related information of S3, the shared output element of configuration, is linked on the shared drive address that correspondence controller is specified；
S4, operation logic configuration program, by the real time data of shared output element transmit and store it is described specify it is shared in
Deposit address；
S5, that the shared data in the shared drive address specified periodically is synchronized into other controller nodes is corresponding
Region of memory.
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| CN107367968A (en) * | 2017-08-03 | 2017-11-21 | 爱普（福建）科技有限公司 | The execution method and computer-readable medium of a kind of configuration element |
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