CN109814480A - Virtual interactive interface method and system between PLC and line traffic control program - Google Patents
Virtual interactive interface method and system between PLC and line traffic control program Download PDFInfo
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- CN109814480A CN109814480A CN201910049329.XA CN201910049329A CN109814480A CN 109814480 A CN109814480 A CN 109814480A CN 201910049329 A CN201910049329 A CN 201910049329A CN 109814480 A CN109814480 A CN 109814480A
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Abstract
The invention discloses the virtual interactive interface method and system between PLC and line traffic control program, method includes: creation class libraries, and multiple classes are stored in the class libraries, and the class carries out the service logic that communication interacts for realizing with PLC；According to the class visioning procedure node stored in class libraries；First configuration is carried out to the input parameter object, output parameter object and business logic processing object of flow nodes；According to the first configuration as a result, connection logic between configuration flow node；According to the connection logic between flow nodes, operation is updated to line traffic control program, the update operation includes modification line traffic control program, deletes line traffic control program and newly-increased line traffic control program.The present invention is not necessarily to will be in the online control program of the unified set of all codings, it is only necessary to be configured to flow nodes in real time according to actual needs, the update to line traffic control program can be realized, substantially increased the stability of line traffic control program, can be widely applied to communication technique field.
Description
Technical field
The present invention relates to the virtual interactive interface method and system between communication technique field, especially PLC and line traffic control program.
Background technique
Explanation of nouns:
The abbreviation of PLC:PLC control system, Programmable Logic Controller, programmable logic controller (PLC),
A kind of electronic device of digital operation of industrial production design is aimed at, it is used for it using a kind of programmable memory
Internally stored program executes logical operation, sequential control, timing, the user oriented instruction such as counting and arithmetical operation, and passes through
Number or the various types of mechanical or production processes of analog pattern input/output control.
The degree of coupling (Coupling), is also coupling, is the measurement to intermodule correlation degree.The power of coupling depends on
The complexity of intermodule interface, the mode of calling module and by interface transmit data number.The degree of coupling of intermodule is
Refer to the dependence between module, including control planning, call relation, data transitive relation.Intermodule connection is more, coupling
Property it is stronger, while showing that its independence is poorer (reduce coupling, its independence can be improved).Usually with coupling in software design
Degree and cohesion degree are as the standard for measuring module degree of independence.One criterion of division module is exactly high cohesion lower coupling.
Line traffic control program: shop production line production procedure controls program.
With the development of industry 4.0, Workshop Production intelligence is increasingly significant, causes the communication between PLC and line traffic control program
Interactive service logic increasingly complex increases communication maintenance and business development difficulty between PLC and line traffic control program.
Existing scheme is that the logic business of PLC and line traffic control program interaction is encoded at present, the operation code of line traffic control program with
And the communication coding of line traffic control program and PLC, it is uniformly integrated into a line traffic control program.
The shortcomings that prior art, is mainly: due to leading to PLC and line traffic control in all unified online control program of set of each coding
The degree of coupling between the complex logic operation code and line traffic control program of program interaction is excessively high, if Workshop Production operation flow has change
Dynamic or need to extend new functional block, the complex logic operation code of existing PLC and line traffic control program interaction is then difficult to extend
And maintenance.Generally speaking, in the logic business of existing PLC and line traffic control program interaction coding, once there are business variation or business
It is newly-increased, it is necessary to recompile line traffic control program, it is very low in the stability of production process that this leads to line traffic control program, and leads to vehicle in turn
Between produce it is unstable.
Summary of the invention
In order to solve the above technical problems, it is an object of the invention to: provide a kind of PLC that stability is high and line traffic control program it
Between virtual interactive interface method and system.
The technical solution that one aspect of the present invention is taken are as follows:
Virtual interactive interface method between PLC and line traffic control program, comprising the following steps:
Class libraries is created, multiple classes are stored in the class libraries, the class carries out the business that communication interacts for realizing with PLC
Logic；
According to the class visioning procedure node stored in class libraries；
First is carried out to the input parameter object, output parameter object and business logic processing object of flow nodes to match
It sets；
According to the first configuration as a result, connection logic between configuration flow node；
According to the connection logic between flow nodes, operation is updated to line traffic control program, the update operation includes repairing
It relocates and controls program, deletes line traffic control program and newly-increased line traffic control program.
Further, the step for the creation class libraries, comprising the following steps:
Create independent class libraries；
The first file is created in the class libraries, and communication traffic class is created in first file；
The second file is created in the class libraries, and communications parameter class is created in second file；
According to communication traffic class and communications parameter class, realizes and carry out the service logic that communication interacts with PLC.
Further, it is described according to the class visioning procedure node stored in class libraries the step for, comprising the following steps:
Class libraries created is uploaded；
Process creation is carried out according to the class libraries of upload；
Visual edit is carried out to the process of creation, obtains flow nodes.
Further, the input parameter object, output parameter object and business logic processing object to flow nodes
The step for carrying out the first configuration, comprising the following steps:
According to the function of service logic, the type of flow nodes is determined；
According to the type of flow nodes, input parameter object, output parameter object and the business of configuration flow node are patrolled
Collect process object.
Further, the function according to service logic, the step for determining the type of flow nodes, specifically:
When the function of service logic is to read data to PLC, determine that flow nodes are first node；
When the function of service logic is processing communication traffic, determine that flow nodes are second node；
When the function of service logic is that data are written to PLC, determine that flow nodes are third node.
Further, the type according to flow nodes, input parameter object, the output parameter object of configuration flow node
And the step for business logic processing object, specifically:
When flow nodes are first node, the task creation state when first node executes is configured, process executes
Sequence and node responsive state, and configure the first output parameter class after the completion of the first node executes；
When flow nodes are second node, the communication traffic class when second node executes and communication traffic side are configured
The second output parameter class after the completion of method, and configuration second node execution；
When flow nodes are third node, the communication interaction node title when third node executes is configured, and
Configure the third output parameter class after the completion of third node executes.
Further, it is described according to the first configuration as a result, the step for connection logic between configuration flow node, including
Following steps:
According to the input parameter object and output parameter object of flow nodes, the connection between each flow nodes is configured
Line；
The execution condition of dynamic configuration flow nodes on connecting line；The execution condition is one or more.
Another aspect of the present invention is adopted the technical scheme that:
Virtual interactive interface system between PLC and line traffic control program, comprising:
Class libraries creation module is stored with multiple classes for creating class libraries in the class libraries, the class for realizing with PLC
Carry out the service logic of communication interaction；
Flow nodes creation module, for according to the class visioning procedure node stored in class libraries；
First configuration module, at input parameter object, output parameter object and the service logic to flow nodes
It manages object and carries out the first configuration；
Second configuration module, for according to the first configuration as a result, connection logic between configuration flow node；
Update module is updated operation to line traffic control program for according to the connection logic between flow nodes, it is described more
New operation includes modification line traffic control program, deletes line traffic control program and newly-increased line traffic control program.
Further, the flow nodes creation module includes:
Uploading unit, for uploading class libraries created；
Process creating unit, for carrying out process creation according to the class libraries of upload；
Visual edit unit obtains flow nodes for carrying out visual edit to the process of creation.
Another aspect of the present invention adopts the technical scheme that:
Virtual interactive interface system between PLC and line traffic control program, comprising:
At least one processor；
At least one processor, for storing at least one program；
When at least one described program is executed by least one described processor, so that at least one described processor is realized
Virtual interactive interface method between the PLC and line traffic control program.
The beneficial effects of the present invention are: the present invention create first a class libraries be used to store multiple classes, with realize and PLC into
The service logic of row communication interaction；Then visioning procedure node and corresponding configuration processing is carried out, finally according to configuration result pair
Line traffic control program is updated operation, and the present invention is not necessarily to will be in the online control program of the unified set of all codings, it is only necessary to according to practical need
Flow nodes are configured in real time, the update to line traffic control program can be realized, substantially increase the stability of line traffic control program.
Detailed description of the invention
The step flow chart of virtual interactive interface method of the Fig. 1 between PLC of the present invention and line traffic control program；
Fig. 2 is the line traffic control routine executing step schematic diagram of the prior art；
Fig. 3 is the line traffic control routine executing step schematic diagram of the embodiment of the present invention.
Specific embodiment
The present invention is further explained and is illustrated with specific embodiment with reference to the accompanying drawings of the specification.For of the invention real
The step number in example is applied, is arranged only for the purposes of illustrating explanation, any restriction is not done to the sequence between step, is implemented
The execution sequence of each step in example can be adaptively adjusted according to the understanding of those skilled in the art.
Referring to Fig.1, the embodiment of the invention provides a kind of virtual interactive interface methods between PLC and line traffic control program, including
Following steps:
Class libraries is created, multiple classes are stored in the class libraries, the class carries out the business that communication interacts for realizing with PLC
Logic；
According to the class visioning procedure node stored in class libraries；
First is carried out to the input parameter object, output parameter object and business logic processing object of flow nodes to match
It sets；
According to the first configuration as a result, connection logic between configuration flow node；
According to the connection logic between flow nodes, operation is updated to line traffic control program, the update operation includes repairing
It relocates and controls program, deletes line traffic control program and newly-increased line traffic control program.
Preferred embodiment is further used as, the step for the creation class libraries, comprising the following steps:
Create independent class libraries；
The first file is created in the class libraries, and communication traffic class is created in first file；
The second file is created in the class libraries, and communications parameter class is created in second file；
According to communication traffic class and communications parameter class, realizes and carry out the service logic that communication interacts with PLC.
Be further used as preferred embodiment, it is described according to the class visioning procedure node stored in class libraries the step for,
The following steps are included:
Class libraries created is uploaded；
Process creation is carried out according to the class libraries of upload；
Visual edit is carried out to the process of creation, obtains flow nodes.
Be further used as preferred embodiment, the input parameter object to flow nodes, output parameter object with
And business logic processing object carries out the step for the first configuration, comprising the following steps:
According to the function of service logic, the type of flow nodes is determined；
According to the type of flow nodes, input parameter object, output parameter object and the business of configuration flow node are patrolled
Collect process object.
Be further used as preferred embodiment, the function according to service logic, determine flow nodes type this
One step, specifically:
When the function of service logic is to read data to PLC, determine that flow nodes are first node；
When the function of service logic is processing communication traffic, determine that flow nodes are second node；
When the function of service logic is that data are written to PLC, determine that flow nodes are third node.
It is further used as preferred embodiment, the type according to flow nodes, the input ginseng of configuration flow node
The step for number object, output parameter object and business logic processing object, specifically:
When flow nodes are first node, the task creation state when first node executes is configured, process executes
Sequence and node responsive state, and configure the first output parameter class after the completion of the first node executes；
When flow nodes are second node, the communication traffic class when second node executes and communication traffic side are configured
The second output parameter class after the completion of method, and configuration second node execution；
When flow nodes are third node, the communication interaction node title when third node executes is configured, and
Configure the third output parameter class after the completion of third node executes.
Be further used as preferred embodiment, it is described according to the first configuration as a result, company between configuration flow node
The step for connecing logic, comprising the following steps:
According to the input parameter object and output parameter object of flow nodes, the connection between each flow nodes is configured
Line；
The execution condition of dynamic configuration flow nodes on connecting line；The execution condition is one or more.
Corresponding with the method for Fig. 1, the embodiment of the invention also provides the visualization friendships between a kind of PLC and line traffic control program
Mutual system, comprising:
Class libraries creation module is stored with multiple classes for creating class libraries in the class libraries, the class for realizing with PLC
Carry out the service logic of communication interaction；
Flow nodes creation module, for according to the class visioning procedure node stored in class libraries；
First configuration module, at input parameter object, output parameter object and the service logic to flow nodes
It manages object and carries out the first configuration；
Second configuration module, for according to the first configuration as a result, connection logic between configuration flow node；
Update module is updated operation to line traffic control program for according to the connection logic between flow nodes, it is described more
New operation includes modification line traffic control program, deletes line traffic control program and newly-increased line traffic control program.
It is further used as preferred embodiment, the flow nodes creation module includes:
Uploading unit, for uploading class libraries created；
Process creating unit, for carrying out process creation according to the class libraries of upload；
Visual edit unit obtains flow nodes for carrying out visual edit to the process of creation.
Another aspect of the present invention adopts the technical scheme that:
Corresponding with the method for Fig. 1, the embodiment of the invention also provides the visualization friendships between a kind of PLC and line traffic control program
Mutual system, comprising:
At least one processor；
At least one processor, for storing at least one program；
When at least one described program is executed by least one described processor, so that at least one described processor is realized
Virtual interactive interface method between the PLC and line traffic control program.
Suitable for this system embodiment, this system embodiment is implemented content in above method embodiment
Function is identical as above method embodiment, and the beneficial effect reached and above method embodiment beneficial effect achieved
It is identical.
The specific implementation process of virtual interactive interface method between PLC and line traffic control program of the invention is described below in detail:
As shown in Fig. 2, in the prior art, line traffic control program is uniformly integrated with program traffic coding, PLC and the communication of line traffic control program
The coupling of mainly line traffic control program of the shortcomings that coding and PLC and line traffic control program communication interactive service coding, this technology is spent
Height, if causing Workshop Production operation flow to have variation or needing to extend new functional block, PLC and line traffic control program interaction are answered
Miscellaneous logic business encodes this block function and is difficult to extend and safeguard.Its is main to be a risk that, once there is the logical of PLC and line traffic control program
News interactive service has variation or increases newly, it is necessary to recompile line traffic control program.This will greatly improve line traffic control program and produce
The unstability of journey, so as to cause the unstable of Workshop Production.
As shown in figure 3, the present invention in view of the shortcomings of the prior art, proposes a kind of visual exchange method, come solve with
The interactive treatment process with programmed logic complexity of PLC.Main function of the invention is the logic PLC and line traffic control program interaction
The communication coding modularization of operation code, the operation code of line traffic control program and line traffic control program and PLC, keeps modules opposite
It is independent, and line traffic control program is only responsible for operation code, it only at runtime just can be other modules load and executions.In this hair
In bright, the degree of coupling is low between module and module, reduces the influence degree when later maintenance of line traffic control program and Function Extension, improves
Stability.
Specifically, steps are as follows for the execution of the present embodiment:
S1, PLC and line traffic control program communication traffic coding；
The present embodiment creates an independent class libraries first, to realize the service logic of each and PLC communication interaction.Below
By taking the communication interaction for spelling single system as an example, the specific implementation step of step S1 is discussed in detail:
One S11, creation class libraries, and 2 files (Handle, Params) are added in class libraries.
S12, communication traffic class is created in Handle file, and write its business.
The present embodiment is for increasing package barcode scanning communication interactive service.The present embodiment increases by one under Handle catalogue
PackScanHandle class, such must inherit the communication base class ExtendActivityBase prestored in class libraries, then rewrite
The method Handle of ExtendActivityBase base class, and communication traffic code is realized in method.
S13, communications parameter class is created in Params file, and write its attribute.Communication in Params file
Parameter class, the communication traffic class Transfer Parameters being mainly supplied in Handle file are used.
The present embodiment is for increasing package barcode scanning communication interaction parameter.The present embodiment increases by one under Params catalogue
PackScanParam class, such must inherit the communications parameter base class DavinciParamBase prestored in class libraries, then compile again
Write such attribute.
S2, design communication interaction flow；
S21, the present embodiment devise " reference uploads " function on business process designer, are pressed by click " reference uploads "
Button, the class libraries for selecting and being created in uploading step S1.
S22, the present embodiment first create a process, then edit to the process, to configure phase to the process
The flow nodes answered.Specifically, the present embodiment chooses simultaneously editing process by right button after choosing process, and drags process section
On point to corresponding design canvas.
S23, the present embodiment configure the input/output argument object of flow nodes according to the flow nodes of configuration.
Specifically, the present embodiment is by double-clicking flow nodes, in the allocation window of pop-up, configures its good input/output argument object.
The present embodiment, with postponing, adds different nodes in opened nodes according to different node types first, such as:
1) when, needing to read plc data, [Add PLC Read] node is added；
2) when, needing to handle communication traffic, [Add Program Invoker] node is added；
3) when, needing to write value to PLC, [Add PLC Write] node is added；
The present embodiment, for different nodes, configures corresponding input parameter object after being added to different nodes, defeated
Parameter object and business logic processing object out.
Such as:
1), for Add PLC Read node: needing to configure whether create task when executing the node；Whether each process
When executing the node, all execute in order；Whether the node has response；And configuration executes the parameter class exported after the node
(class libraries uploaded from step S1), uses for next node.
2), for Add Program Invoker node: when configuration executes the node, the Handle service class of Yao Zhihang
With method (class libraries uploaded from step S1)；And configuration executes the parameter class exported after the node and (uploads from step S1
Class libraries), for next node use.
3), for Add PLC Write node: configuring the communication interaction point title of the node；And configuration executes the section
The parameter class (class libraries uploaded from step S1) exported after point, uses for next node.
S24, each node is added in process, and configured associated connecting line between node and node.
S25, the condition that can execute next node is configured on connecting line, the source of the condition is in step S23
Attribute in the output parameter object of configuration.
The concrete operations of the present embodiment are as follows:
A), connecting line is double-clicked, in the allocation window of pop-up, clicks Add drop-down list；
It is creation condition group if b), selecting Group button；
It is the individual condition of creation if c), selecting condition button.
Specific conditional content can be configured according to actual needs in the present embodiment, be not necessarily required to parameter class
All properties are all used as condition.
S3, the starting code that flow engine program is added in line traffic control program starting entrance.
The present embodiment finally starts the flow engine program of above-mentioned steps S1-S2, can be realized PLC and line traffic control program it
Between virtual interactive interface.
In conclusion the process design step of the virtual interactive interface between PLC and line traffic control program of the invention are as follows: create first
Process is built, then design cycle node and associated nodes relationship, then configuration relation condition is finally protected in configuration node business
All data for depositing the above process, obtain flow engine.
The detailed process of virtual interactive interface between PLC and line traffic control program of the invention executes step are as follows: coding PLC first
Interaction logic business is communicated, communication flow is then designed, flow engine is then loaded by line traffic control program, is finally started and carried out
Flow engine.
The present invention is solved using the method for visual configuration to be interacted and programmed logic is complicated between PLC and line traffic control program
Treatment process.
In addition, compare existing technology, this invention simplifies the maintenance and expansion of PLC and the communication interaction of line traffic control program, one
Denier has communication interactive service to need to adjust or extend, it is only necessary to which then line traffic control program is restarted in adjusted design device and communication traffic library
It can be realized, avoid because of the adjustment line traffic control program risks such as cause program not reliable.
It is to be illustrated to preferable implementation of the invention, but the present invention is not limited to the embodiment above, it is ripe
Various equivalent deformation or replacement can also be made on the premise of without prejudice to spirit of the invention by knowing those skilled in the art, this
Equivalent deformation or replacement are all included in the scope defined by the claims of the present application a bit.
Claims (10)
- Virtual interactive interface method between 1.PLC and line traffic control program, it is characterised in that: the following steps are included:Class libraries is created, is stored with multiple classes in the class libraries, the class is patrolled for realizing carrying out the business that communication interacts with PLC Volume；According to the class visioning procedure node stored in class libraries；First configuration is carried out to the input parameter object, output parameter object and business logic processing object of flow nodes；According to the first configuration as a result, connection logic between configuration flow node；According to the connection logic between flow nodes, operation is updated to line traffic control program, the update operation includes modification line It controls program, delete line traffic control program and newly-increased line traffic control program.
- 2. the virtual interactive interface method between PLC according to claim 1 and line traffic control program, it is characterised in that: the wound The step for building class libraries, comprising the following steps:Create independent class libraries；The first file is created in the class libraries, and communication traffic class is created in first file；The second file is created in the class libraries, and communications parameter class is created in second file；According to communication traffic class and communications parameter class, realizes and carry out the service logic that communication interacts with PLC.
- 3. the virtual interactive interface method between PLC according to claim 1 and line traffic control program, it is characterised in that: described The step for according to the class visioning procedure node stored in class libraries, comprising the following steps:Class libraries created is uploaded；Process creation is carried out according to the class libraries of upload；Visual edit is carried out to the process of creation, obtains flow nodes.
- 4. the virtual interactive interface method between PLC according to claim 1 and line traffic control program, it is characterised in that: described right The step for input parameter object, output parameter object and the business logic processing object of flow nodes carry out the first configuration, The following steps are included:According to the function of service logic, the type of flow nodes is determined；According to the type of flow nodes, at the input parameter object of configuration flow node, output parameter object and service logic Manage object.
- 5. the virtual interactive interface method between PLC according to claim 4 and line traffic control program, it is characterised in that: described According to the function of service logic, the step for determining the type of flow nodes, specifically:When the function of service logic is to read data to PLC, determine that flow nodes are first node；When the function of service logic is processing communication traffic, determine that flow nodes are second node；When the function of service logic is that data are written to PLC, determine that flow nodes are third node.
- 6. the virtual interactive interface method between PLC according to claim 5 and line traffic control program, it is characterised in that: described According to the type of flow nodes, input parameter object, output parameter object and the business logic processing object of configuration flow node The step for, specifically:When flow nodes are first node, the task creation state when first node executes is configured, process executes sequence And node responsive state, and configure the first output parameter class after the completion of the first node executes；When flow nodes are second node, the communication traffic class and communication traffic method when the second node executes are configured, And the second output parameter class after the completion of configuration second node execution；When flow nodes are third node, the communication interaction node title when third node executes, and configuration are configured Third output parameter class after the completion of the execution of third node.
- 7. the virtual interactive interface method between PLC according to claim 1 and line traffic control program, it is characterised in that: described According to the first configuration as a result, the step for connection logic between configuration flow node, comprising the following steps:According to the input parameter object and output parameter object of flow nodes, the connecting line between each flow nodes is configured；The execution condition of dynamic configuration flow nodes on connecting line；The execution condition is one or more.
- Virtual interactive interface system between 8.PLC and line traffic control program, it is characterised in that: include:Class libraries creation module is stored with multiple classes, the class carries out for realizing with PLC for creating class libraries in the class libraries Communicate the service logic of interaction；Flow nodes creation module, for according to the class visioning procedure node stored in class libraries；First configuration module, for input parameter object, output parameter object and the business logic processing pair to flow nodes As carrying out the first configuration；Second configuration module, for according to the first configuration as a result, connection logic between configuration flow node；Update module, for being updated operation, the update behaviour to line traffic control program according to the connection logic between flow nodes Make to include modification line traffic control program, deletion line traffic control program and newly-increased line traffic control program.
- 9. the virtual interactive interface system between PLC according to claim 8 and line traffic control program, it is characterised in that: the stream Journey node creation module includes:Uploading unit, for uploading class libraries created；Process creating unit, for carrying out process creation according to the class libraries of upload；Visual edit unit obtains flow nodes for carrying out visual edit to the process of creation.
- Virtual interactive interface system between 10.PLC and line traffic control program, it is characterised in that: include:At least one processor；At least one processor, for storing at least one program；When at least one described program is executed by least one described processor, so that at least one described processor is realized as weighed Benefit requires the virtual interactive interface method between PLC described in any one of 1-7 and line traffic control program.
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