CN111413918B - Method, system and storage medium for processing creation data of OPC communication label - Google Patents
Method, system and storage medium for processing creation data of OPC communication label Download PDFInfo
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- CN111413918B CN111413918B CN202010145634.1A CN202010145634A CN111413918B CN 111413918 B CN111413918 B CN 111413918B CN 202010145634 A CN202010145634 A CN 202010145634A CN 111413918 B CN111413918 B CN 111413918B
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- 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
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
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- 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
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1126—Conversion table between original defined module address and actual physical address
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Abstract
The invention discloses a method, a system and a storage medium for processing the creation data of an OPC communication label, wherein the method comprises the following steps: acquiring a PLC signal; creating an OPC project format file; acquiring a PLC signal address; carrying out format conversion on the PLC signal address; and exporting the format-converted PLC signal address through an OPC project format file. The invention can establish communication by automatically matching the exported OPC project format file with OPC software, thereby saving a great deal of time spent by engineers to manually modify the signal data type and the conversion address format in the signal table, greatly reducing the workload of the engineers and improving the accuracy of exported signals. The invention can be widely applied to the technical field of virtual simulation.
Description
Technical Field
The invention relates to the technical field of virtual simulation, in particular to a method, a system and a storage medium for processing the creation data of an OPC communication label.
Background
In the actual industrial production process, the PLC is equivalent to the operation condition of all equipment controlled by the control center within the range, and in the virtual simulation stage, to simulate the field operation condition, the virtual simulation environment needs to be connected with the PLC controller, wherein the external connection of the Tecnomatix is a signal communication interface between the virtual environment and the PLC controller. After communication is established with the PLC in the virtual environment Tecnomatix, one method is that the PLC finds out a virtual signal through the name of the signal to realize assignment of the signal, and the other method is that the PLC finds out the virtual signal through the absolute address of the signal to realize assignment of the signal. The OMRON and Mitsubishi PLCs are connected with the virtual environment through DeviceXPlorer OPC software for communication. In the connection process, an OPC project format file containing project setting and configuration information needs to be manufactured in DeviceXPlorer OPC software, then a signal table carrying thousands of external connection names is led out from a virtual environment Tecnomatix, then an engineer needs to spend a large amount of time to manually modify signal data types, address format conversion and the like in the signal table, finally the table types are converted into texts which can be identified by the DeviceXPlorer OPC software, and the texts are led into the DeviceXPlorer OPC software for connection and communication.
Disclosure of Invention
To solve the above technical problems, the present invention aims to: a method, system and storage medium for processing data for creating OPC communication tag are provided, which can greatly reduce the workload of engineer and improve the accuracy of derived signal.
A first aspect of an embodiment of the present invention provides:
a data processing method for creating OPC communication label includes the following steps:
acquiring a PLC signal;
creating an OPC project format file;
acquiring a PLC signal address;
carrying out format conversion on the PLC signal address;
and exporting the format-converted PLC signal address through an OPC project format file.
Further, the acquiring the PLC signal address specifically includes:
detecting the connection state of a PLC signal and external equipment;
and acquiring a PLC signal address according to the connection state.
Further, before the step of format converting the PLC signal address, the method further includes the following steps:
and after the PLC signal is determined to be connected with the external equipment, judging the format of the PLC signal address.
Further, the format conversion of the PLC signal address specifically includes:
judging the PLC type corresponding to the PLC signal;
and carrying out format conversion on the PLC signal address according to the PLC type.
Further, the format conversion of the PLC signal address according to the PLC type specifically includes:
after the PLC type is determined to be the first type, converting a PLC signal address by adopting a first standard, and converting the name and the storage type of the PLC signal into a signal list meeting the preset requirement;
and after the PLC type is determined to be the second type, converting the PLC signal address by adopting a second standard, and converting the name and the storage type of the PLC signal into a signal list meeting the preset requirement.
Further, the method also comprises the following steps:
and after determining to export the OPC project format file, generating a record text, wherein the record text comprises the PLC signal address of which the conversion is completed and the PLC signal address of which the conversion is not completed.
Further, before the step of creating the OPC project format file, the method further comprises the steps of:
and creating a template file of the OPC project format file, wherein a preset format is preset in the template file.
A second aspect of an embodiment of the present invention provides:
a data processing system for OPC communication tag creation, comprising:
the first acquisition module is used for acquiring a PLC signal;
the creating module is used for creating an OPC project format file;
the second acquisition module is used for acquiring a PLC signal address;
the conversion module is used for carrying out format conversion on the PLC signal address;
and the export module is used for exporting the format-converted PLC signal address through the OPC project format file.
A third aspect of embodiments of the present invention provides:
a data processing system for OPC communication tag creation, comprising:
at least one memory for storing a program;
at least one processor for loading the program to execute the method for processing the OPC communication tag creation data.
A fourth aspect of an embodiment of the present invention provides:
a storage medium having stored therein processor-executable instructions for implementing the method for creating data processing for an OPC communication tag when executed by a processor.
The invention has the beneficial effects that: the invention can establish communication by automatically matching the exported OPC project format file with OPC software, thereby saving a great deal of time spent by engineers to manually modify the signal data type and the conversion address format in the signal table, greatly reducing the workload of the engineers and improving the accuracy of exported signals.
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FIG. 1 is a flowchart of a method for processing data for creating OPC communication tags according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments. The step numbers in the following embodiments are provided only for convenience of illustration, the order between the steps is not limited at all, and the execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art.
Before proceeding with a description of specific embodiments, the following terms are to be interpreted:
virtual simulation: a digital model is established through software, and a production flow, a robot program, a PLC program and the like in an actual workshop are simulated and debugged based on the digital model, wherein the production flow, the robot program, the PLC program and the like include but are not limited to the PLC program, the robot program and the workshop material turnover.
Tecnomatix is a comprehensive digital manufacturing solution combination provided by Siemens, and can carry out digital modification, simulation and debugging on industrial manufacturing, innovative concepts and the process of converting raw materials into actual products.
Process Simulant, Process Design or Teamcenter: the software is one of Tecnomatix series software, and is used for digital manufacturing services, and the emphasis points are different, and the oriented subdivision directions are different. Collectively referred to as Tecnomatix in the present embodiment.
And (3) OPC: the english language is called OLE for Process Control, which is a software standard, and can make an automation application program conveniently read factory-level data of an industrial enterprise. OPC is a standard interface defined by Microsoft's component object modeling technology that allows automation and control applications, control devices, and business and office applications to interoperate with each other. OPC defines standard objects, methods and attributes, meeting the interoperability requirements of real-time process automation applications.
DeviceXPlorer: OPC software for providing communication software connected to control devices in a production plant and conforming to OPC standards provides communication functions with each control device through various networks and bridges data to various applications.
PLC: a programmable logic controller is a digital operation electronic system specially designed for application in industrial environment, and it adopts a programmable memory, and stores the instructions for executing logical operation, sequence control, timing, counting and arithmetic operation, etc. in its interior, and utilizes digital or analog input and output to control various mechanical equipments or production processes.
The ohm-dragon is a compact PLC with complete functions, and can provide high value-added machine control for the leading conveying dispersion control and the like in the industry; it also has the ability to upgrade through various high-level built-in boards, large program capacity and memory unit, and has a set of programming and communication standards belonging to it with high-efficiency software development ability in Windows environment. Collectively referred to as OMRON in the present embodiment.
Mitsubishi, a brand of PLC, has a set of programming and communication standards. Collectively referred to as Mitsubishi in the present embodiment.
Referring to fig. 1, an embodiment of the present invention provides a method for processing data created by an OPC communication tag, and the present embodiment is applied to a control end of a Tecnomatix, where the control end of the Tecnomatix is respectively in communication with a plurality of input ends and OPC software, and the OPC software is in communication with a PLC.
The present embodiment includes steps S110 to S150:
s110, acquiring a PLC signal; the PLC signal is used for connecting a PLC device and a virtual simulation model when an engineer performs virtual simulation and transmitting information such as motion state, time, control instructions and the like.
S120, creating an OPC project format file; the OPC project format file is pre-stored with a specified format to ensure accurate matching with the OPC project format file in OPC software. The OPC project format file in the OPC software comprises the setting and configuration information of the project.
S130, acquiring a PLC signal address; and the PLC signal address is a storage address of a PLC signal corresponding to a PLC device which an engineer needs to perform virtual simulation. The acquisition process of the PLC signal address can be directly acquired or acquired from an annotation column, and is specifically adjusted according to actual needs.
S140, carrying out format conversion on the PLC signal address; the format conversion is used for converting the PLC signal address into a signal type which can be identified by a PLC device corresponding to the PLC signal.
And S150, exporting the format-converted PLC signal address through the OPC project format file, so that an engineer can conveniently and repeatedly call the PLC signal address.
According to the embodiment, the communication can be established by automatically matching the exported OPC project format file with OPC software, so that an engineer does not need to spend a large amount of time to manually modify the signal data type and the conversion address format in the signal table, the workload of the engineer is greatly reduced, and the accuracy of exporting signals is improved.
The order of steps S110 to S140 is not unique, and the order combination has a total of 4 factorial seed combinations, and step S110 and step S130 may be performed simultaneously. The above list is only one of the execution sequences, and the execution sequence is selected according to actual requirements in the specific operation process.
As a preferred embodiment, the acquiring a PLC signal address specifically includes:
detecting the connection state of a PLC signal and external equipment; the connection state refers to the fact that relevant configuration is conducted according to the PLC signals, preparation is made for external equipment connection communication, accuracy of obtaining PLC signal addresses is improved, the range of obtaining objects is narrowed from all signals in the simulation environment, and operation speed is improved. The comment bar for the PLC signal may be modified or added by an engineer.
Because the information format of the Tecnomatix corresponding to the annotation position has certain requirements, when the information format does not meet the requirements of the format, the PLC signal address used for external connection cannot be read. For example, if there is a space between a plurality of characters of the information at the comment location, it may not be possible to accurately read the PLC signal address for external connection, and therefore, as a preferred embodiment, the method further includes, before the step of converting the format of the PLC signal address, the steps of:
and after the PLC signal is determined to be connected with the external equipment, judging the format of the PLC signal address. The format judgment specifically judges whether spaces and other characters exist between the characters of the PLC signal address, and the spaces and other characters are defined as characters which do not meet the requirements. And after the PLC signal address is determined to meet the format requirement, carrying out format conversion on the PLC signal address.
As a preferred embodiment, the format conversion of the PLC signal address specifically includes:
judging the PLC type corresponding to the PLC signal; the PLC types include a variety. The specific type can be set according to actual needs. The signal format corresponding to each type of PLC device is different, for example, the type of the signal used is a binary type. Therefore, format conversion of the PLC signal address is required according to the PLC type so that the converted PLC signal address can meet the requirements.
In some embodiments, two types of PLC devices, ohilon and mitsubishi, are used for differential illustration. The format conversion is performed on the PLC signal address according to the PLC type, and the format conversion specifically comprises the following steps:
after the PLC type is determined to be the first type, converting a PLC signal address by adopting a first standard, and converting the name and the storage type of the PLC signal into a signal list meeting the preset requirement; the first type is an ohm dragon type PLC. The first standard refers to an address storage format that is specifically used to refer to an ohm-dragon type PLC.
And after the PLC type is determined to be the second type, converting the PLC signal address by adopting a second standard, and converting the name and the storage type of the PLC signal into a signal list meeting the preset requirement. The second type is referred to as Mitsubishi type PLC. The second standard refers to an address storage format that is specifically used to refer to mitsubishi-type PLCs.
And because the OPC software identifies the decimal system and the address storage format of Mitsubishi is hexadecimal, the address of the PLC signal converted by the second standard needs to be converted in a binary system, so that the OPC software can complete the matching process quickly and accurately.
In addition, the address of Mitsubishi PLC is allocated with the beginning of letters such as X/Y, for example, X001 and Y001, different letters represent different signal types or hardware interface types, and therefore the design instruction needs to distinguish the addresses corresponding to the letters such as X/Y; the address of the ohm dragon PLC is allocated to a number of 00.00, and E prefix and the like can occur in some cases. And because the number identified by the OPC software is decimal, but the address number of Mitsubishi is hexadecimal, the conversion process of hexadecimal to decimal is added to the ohm dragon.
As a preferred embodiment, the method further comprises the following steps:
and after determining to export the OPC project format file, generating a record text, wherein the record text comprises the PLC signal address of which the conversion is completed and the PLC signal address of which the conversion is not completed. The generated recording text is output to a display interface for an engineer to check, so that the error can be conveniently and timely searched, and the working efficiency is improved.
As a preferred embodiment, before the step of creating the OPC project format file, the method further comprises the following steps:
and creating a template file of the OPC project format file, wherein a preset format is preset in the template file. The predetermined format is a format that the OPC software can recognize and is common to most classes of PLCs. The data processing process of the virtual software is improved by creating a template file of an OPC project format file in advance.
In some embodiments, when the data processing procedure of the embodiment of the present invention is applied to a specific embodiment, the processing procedure is as follows:
creating a related template file, wherein the format of the template file meets the requirements of OPC software; has been standardized without requiring repeated creation by engineers.
PLC signals in Tecnomatix software are added to an annotation column, and the address format is determined by PLC and project standards.
The template is obtained and can be manually selected by an engineer, and the template can also be configured in a program, for example, the template is stored in a specified path without manual selection of the engineer; the embodiment adopts a mode of storing in a specified path.
Processing all PLC signals, specifically, the PLC signals of the whole project are all required; the signal which is externally connected and writes the address information into the comment column can be processed subsequently; and recording the log if the format is not in accordance with the requirements and not added, and finally displaying the log content through a display interface.
The processing of the annotation text specifically includes:
because different brands can cause slight differences of address rules, the requirement of adjustment for items exists, the adjustment frequency is generally low, and the value of the items is high;
the signal is connected with an external device and used as a condition for screening and filtering the signal; that is, only the signal address to which the external device has been connected is derived; judging whether the comment column is added with a comment or not;
whether the related annotation formats are matched is different according to PLC brands and project requirements; if not, the signal cannot be derived and the relevant information is logged.
And outputting the log and feeding back the log to the relevant information of the engineer.
An embodiment of the present invention further provides a data processing system for creating an OPC communication tag corresponding to the method in fig. 1, which includes:
the first acquisition module is used for acquiring a PLC signal;
the creating module is used for creating an OPC project format file;
the second acquisition module is used for acquiring a PLC signal address;
the conversion module is used for carrying out format conversion on the PLC signal address;
and the export module is used for exporting the format-converted PLC signal address through the OPC project format file.
The content of the embodiment of the method of the invention is all applicable to the embodiment of the system, the function of the embodiment of the system is the same as the embodiment of the method, and the beneficial effect achieved by the embodiment of the system is the same as the beneficial effect achieved by the method.
The embodiment of the invention also provides a system for creating the data of the OPC communication label, which comprises the following steps:
at least one memory for storing a program;
and the processor is used for loading the program to execute the method for processing the OPC communication tag creation data.
The content of the embodiment of the method of the invention is all applicable to the embodiment of the system, the function of the embodiment of the system is the same as the embodiment of the method, and the beneficial effect achieved by the embodiment of the system is the same as the beneficial effect achieved by the method.
Furthermore, the embodiment of the present invention also provides a storage medium, in which processor-executable instructions are stored, and when the processor-executable instructions are executed by a processor, the storage medium is used for implementing the above-mentioned method for creating data of OPC communication tags.
In summary, the embodiment of the present invention can establish communication by automatically matching the exported OPC project format file with the OPC software, so that an engineer does not need to spend a lot of time to manually modify the signal data type and the conversion address format in the signal table, the workload of the engineer is greatly reduced, and the accuracy of exporting signals is improved.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A method for processing the creation data of OPC communication label is characterized in that: the method comprises the following steps: acquiring a PLC signal;
creating an OPC project format file;
detecting the connection state of a PLC signal and external equipment;
acquiring a PLC signal address according to the connection state;
carrying out format conversion on the PLC signal address;
and exporting the format-converted PLC signal address through an OPC project format file.
2. The method for processing the creation data of the OPC communication tag according to claim 1, wherein: before the step of converting the format of the PLC signal address, the method further comprises the following steps: and after the PLC signal is determined to be connected with the external equipment, judging the format of the PLC signal address.
3. The method for processing the creation data of the OPC communication tag according to claim 1, wherein: the format conversion of the PLC signal address specifically includes: judging the PLC type corresponding to the PLC signal;
and carrying out format conversion on the PLC signal address according to the PLC type.
4. The method for processing the creation data of the OPC communication tag according to claim 3, wherein: the format conversion is performed on the PLC signal address according to the PLC type, and the format conversion specifically comprises the following steps: after the PLC type is determined to be the first type, converting a PLC signal address by adopting a first standard, and converting the name and the storage type of the PLC signal into a signal list meeting the preset requirement;
and after the PLC type is determined to be the second type, converting the PLC signal address by adopting a second standard, and converting the name and the storage type of the PLC signal into a signal list meeting the preset requirement.
5. The method for processing the creation data of the OPC communication tag according to claim 1, wherein: further comprising the steps of: and after determining to export the OPC project format file, generating a record text, wherein the record text comprises the PLC signal address of which the conversion is completed and the PLC signal address of which the conversion is not completed.
6. The method for processing the creation data of the OPC communication tag according to claim 1, wherein: before the step of creating the OPC project format file, the method further comprises the following steps: and creating a template file of the OPC project format file, wherein a preset format is preset in the template file.
7. A data processing system for OPC communication tag creation, characterized by: the method comprises the following steps: the first acquisition module is used for acquiring a PLC signal;
the creating module is used for creating an OPC project format file;
the second acquisition module is used for detecting the connection state of the PLC signal and the external equipment and acquiring a PLC signal address according to the connection state;
the conversion module is used for carrying out format conversion on the PLC signal address;
and the export module is used for exporting the format-converted PLC signal address through the OPC project format file.
8. A data processing system for OPC communication tag creation, characterized by: the method comprises the following steps: at least one memory for storing a program;
at least one processor for loading the program to execute a method for processing OPC communication tag creation data as claimed in any one of claims 1 to 6.
9. A storage medium having stored therein instructions executable by a processor, the storage medium comprising: the processor-executable instructions, when executed by a processor, are for implementing a method of creating data for an OPC communication tag according to any of claims 1-6.
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