CN115826487A - Application method, system, terminal and medium of graphic PLC software address cross table - Google Patents

Abstract

The invention provides an application method, a system, a terminal and a medium for graphical address cross table of PLC software, wherein the method comprises the following steps: reading engineering information; recording state information of bytes in all global variables in the engineering information, and forming a state cross table of the bytes in the global variables; wherein, each global variable corresponds to the address in the state cross table one by one; selecting a byte of referenced state in a state cross table in which bytes in the global variable are referenced; traversing all the engineering files to judge whether a global variable containing the referred state of the byte exists in the engineering files; if so, recording the name of the engineering file to which the global variable belongs and the position information of the global variable, and displaying; if not, returning to the step of traversing all the project files. The invention can clearly see that the occupation situation is not changed in a large range for sequencing any more, and effectively solves the problem that the address occupation situation can be conveniently jumped to the used position while being checked.

Description

Application method, system, terminal and medium of graphic PLC software address cross table

technical field

The invention belongs to the technical field of PLC and relates to an application method and system, in particular to an application method, system, terminal and medium for graphicizing PLC software address cross tables.

Background technique

In PLC software programming, the use of address cross tables is very frequent. When programming, you can check the occupancy of the memory address area to prevent address duplication. When a problem occurs in the program, the address cross table can be used to check the position used by the instruction. The address cross table is a necessary function of PLC software.

Most of the existing crosstabs appear in the form of tables, using different marks to represent the occupancy situation. If you want to jump to the location used by the address, you still need to filter the address separately; or the address is based on the occupancy The length is arranged, and the sorting of 2 bytes and 4 bytes of the same address is very far away, and it is very inconvenient to search.

Therefore, how to provide a graphical application method, system, terminal and medium of a PLC software address cross table to solve the inconvenient byte address search in the prior art, resulting in the inability to see the address occupation at a glance, and the jump is not easy. Become a technical problem to be solved urgently by those skilled in the art.

Contents of the invention

In view of the above-mentioned shortcoming of the prior art, the purpose of the present invention is to provide a graphical application method, system, terminal and medium of a PLC software address cross table, which is used to solve the inconvenience of searching the byte address of the prior art, resulting in the address Occupancy cannot be seen at a glance, and jumping is not easy.

In order to achieve the above object and other related objects, the present invention provides a graphical application method of a PLC software address cross table, including: reading engineering information; the engineering information includes engineering files, global variable areas, and global area configuration information ; Record the state information of the byte referenced in all global variables in the project information, and form a state cross table of the byte referenced in the global variable; wherein, each global variable and the address in the state cross table one by one Corresponding; select a referenced state of a byte in the state cross table of the byte referenced in the global variable; traverse all project files to determine whether there is a global variable containing the referenced state of the byte in the project file variable; if yes, record the name of the project file to which the global variable belongs and the location information of the global variable, and display them; if not, return to the step of traversing all project files.

In an embodiment of the present invention, the global variable area includes an area name, an area description, an actual size and a maximum size; the actual size and the maximum size are represented by unit bytes.

In an embodiment of the present invention, the step of recording state information of byte references in all global variables in the project information, and forming a state cross table of byte references in global variables includes: according to the global The region configuration information establishes a byte reference state for each region, and configures memory for the reference state; the global variable information includes region name, data type and address offset.

In one embodiment of the present invention, the size of memory allocated for the reference state is twice the size of each region.

In an embodiment of the present invention, the step of recording state information of byte references in all global variables in the project information, and forming a state cross table of byte references in global variables further includes: traversing the Global variable, to obtain its global variable information; according to the data type, record the reference state of the corresponding byte in the memory configured for the reference state; according to the reference state of the byte recorded in the memory of all areas, form the word in the global variable The state crosstab that the section is referenced from.

In one embodiment of the present invention, the first column in the state cross table where the bytes in the global variable are referenced is the byte in the variable, and the first row is the corresponding 8 bits and their binary digits in the byte; If the reference status of a byte is gray, it means that the byte is referenced.

In an embodiment of the present invention, the data type of the reference state of the byte adopts short data; the reference state of the byte includes 0, the original state of the byte or the result of ORing the original states of multiple bytes.

Another aspect of the present invention provides a graphical application system for a PLC software address cross table, including: a reading module for reading engineering information; the engineering information includes engineering files, global variables and global area configuration information; a recording module , English records the state information of the bytes referenced in all global variables in the project information, and forms a state cross table of the bytes referenced in the global variables; wherein, each global variable is the same as the address in the state cross table One-to-one correspondence; the application module is used to select the referenced state of a byte in the state cross table of the byte referenced in the variable; traverse all project files to determine whether there is a byte containing the byte in the project file The global variable in the referenced state; if yes, record the name of the project file to which the global variable belongs and the location information of the global variable, and display it; if not, return to traverse all project files.

Still another aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the application method for graphically forming the PLC software address cross table is realized.

The last aspect of the present invention provides a terminal, including: a processor and a memory; the memory is used to store computer programs, and the processor is used to execute the computer programs stored in the memory, so that the terminal executes the PLC software The application method of address cross table graphics.

As mentioned above, the graphical application method, system, terminal and medium of the PLC software address cross table described in the present invention have the following beneficial effects:

First, the present invention turns the address occupancy into a graph, so that the occupancy situation can be seen at a glance and there is no need to rummage in a large area for sorting.

Second, the present invention puts the address occupancy situation and the location used by the address in the same interface, which effectively solves the problem of conveniently jumping to the used location while checking the address occupancy situation.

Description of drawings

FIG. 1 is a schematic flowchart of an application method of PLC software address cross-table graphics in an embodiment of the present invention.

Fig. 2 shows an example diagram of project files in the present invention.

Fig. 3A shows an example diagram of global variable areas under different files in the present invention.

Fig. 3B is a diagram showing an example of information contained in the global variable area in the present invention.

FIG. 3C is an example diagram of global zone configuration information in the present invention.

FIG. 4 is a schematic flow chart of S12 in the application method of graphical PLC software address cross-table of the present invention.

FIG. 5 is an example diagram of a state cross-tabulation table in which bytes in a global variable are referenced in the present invention.

Fig. 6 shows an example diagram of the referenced state of the selected byte displayed on the UI interface in the present invention.

FIG. 7 is a diagram showing an example diagram of obtaining the referenced file and global variable location information of the selected byte according to the referenced state of the selected byte in the present invention.

FIG. 8 is a schematic structural diagram of an application system of PLC software address cross-table graphics in an embodiment of the present invention.

Component designation description

8 Graphical application system of PLC software address cross table

81 read module

82 recording module

83 application modules

S11～S16 steps

S121～S125 steps

Detailed ways

Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the component layout type may also be more complicated.

This embodiment provides a graphical application method of PLC software address cross table, including:

Read project information; the project information includes project files, global variable areas and global area configuration information;

Record the state information of the bytes referenced in all global variables in the project information, and form a state cross table of the bytes referenced in the global variables; wherein, each global variable corresponds to the address in the state cross table one by one ;

Selecting a referenced state of a byte in the state cross table of the byte being referenced in the global variable;

Traverse all project files to determine whether there is a global variable containing the referenced state of the byte in the project file; if so, record the name of the project file to which the global variable belongs and the location information of the global variable, and display it; if No, return to the step of traversing all project files.

The application method of PLC software address cross-table graphics in this embodiment will be described in detail below in conjunction with illustrations. The graphical application method of the PLC software address cross table described in this embodiment is applied to an intelligent terminal with a UI interface.

Please refer to FIG. 1 , which shows a schematic flowchart of an application method for PLC software address cross-table graphics in an embodiment. As shown in Figure 1, the graphical application method of the PLC software address cross table specifically includes the following steps:

S11. Read project information; the project information includes project files, global variable areas, and global area configuration information.

See Figure 2, shown as an example diagram of the project file. As shown in Figure 2, when a project is very large, it will contain many files. Please refer to FIG. 3A and FIG. 3B , which respectively show an example diagram of the global variable area and an example diagram of information contained in the global variable area under different files. As shown in FIG. 3B , the global variable area includes area name, area description, actual size and maximum size; the actual size and maximum size are expressed in unit bytes. Please refer to FIG. 3C , which shows an example diagram of global zone configuration information. As shown in FIG. 3C , the global variable information includes area name, data type, address offset, and the like.

S12, recording state information of referenced bytes in all global variables in the project information, and forming a state cross table of referenced bytes in global variables; wherein, each global variable is consistent with an address in the state cross table One to one correspondence.

In this embodiment, in order to consider memory and running speed, the function of recording the state value of all bytes being applied is implemented. Please refer to FIG. 4, which is a schematic flow diagram of S12. As shown in Figure 4, the S12 specifically includes the following steps:

S121, using the PLC software to receive the instruction of the distribution list;

S122. According to the global area configuration information, establish a byte reference state for each area (the byte reference state is represented by flag), and configure memory for the reference state (the reference state configuration memory is represented by pFlag).

In this embodiment, the size of memory configured for the reference state is twice the size of each region.

S123. Traverse the global variables to obtain their global variable information.

S124. According to the data type, record the reference state of the corresponding byte into the memory configured for the reference state.

In this embodiment, the data type of the reference state of the byte adopts short data; the reference state of the byte includes 0, the original state of the byte or the result of ORing the original states of multiple bytes.

S125. According to the reference states of the bytes recorded in the memory of all areas, form a state cross table of the bytes referenced in the global variable. Please refer to FIG. 5, which shows an example diagram of a cross-tabulation of states where bytes in a global variable are referenced. As shown in Figure 5, the first column in the state cross table of the referenced byte in the global variable is the byte in the variable, and the corresponding 8 bits and binary digits thereof in the first row byte; if a word A section with a referenced status of gray indicates that the byte is referenced.

In this embodiment, by turning the address occupancy into a graph, the occupancy situation can be seen clearly at a glance, and there is no need to rummage in a large area for sorting.

S13. Select a referenced state of a byte in the cross-table of referenced states of the byte in the global variable.

In this embodiment, it is used to receive a selection command through a UI interface, and determine the referenced state of the selected byte matching the position according to the position where the selection command appears. Please refer to FIG. 6 , which is an example diagram of the referenced state of the selected byte displayed on the UI interface. As shown in Figure 6, the address corresponding to the referenced state of this byte is M210.3.

S14, reading all project files stored in the database.

S15, traversing all project files to determine whether there is a global variable containing the referenced state of the byte in the project file; if so, execute S16, record the name of the project file to which the global variable belongs and the location information of the global variable, and display it; if not, return to the step of traversing all project files.

Please refer to FIG. 7 , which shows an example diagram for obtaining information about the location of the file and the global variable where the byte is referenced according to the referenced state of the selected byte. In this embodiment, by putting the address occupancy and the address used in the same interface, the technical problem of conveniently jumping to the used location while viewing the address occupancy is effectively solved.

The graphical application method of the PLC software address cross table described in this embodiment has the following beneficial effects:

First, the graphical application method of the PLC software address cross table described in this embodiment turns the address occupancy into a graphic, so that the occupancy situation can be seen at a glance, and there is no need to rummage in a large area for sorting.

Second, the graphical application method of the PLC software address cross table described in this embodiment puts the address occupancy situation and the location used by the address in the same interface, which effectively solves the problem of conveniently jumping while checking the address occupancy situation to the location used.

This embodiment also provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method as described in FIG. 1 is implemented.

In any possible combination of technical details, the present application may be a system, method and/or computer program product. A computer program product may include a computer readable storage medium having computer readable program instructions thereon for causing a processor to implement various aspects of the present application.

A computer readable storage medium may be a tangible device that can retain and store instructions for use by an instruction execution device. A computer readable storage medium may be, for example, but is not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory), static random access memory (SRAM), compact disc read only memory (CD-ROM), digital versatile disc (DVD), memory stick, floppy disk, mechanically encoded device, such as a printer with instructions stored thereon A hole card or a raised structure in a groove, and any suitable combination of the above. As used herein, computer-readable storage media are not to be construed as transient signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., pulses of light through fiber optic cables), or transmitted electrical signals.

The computer readable programs described herein can be downloaded from a computer readable storage medium to a respective computing/processing device, or downloaded to an external computer or external storage device over a network, such as the Internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and/or edge servers. A network adapter card or a network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in each computing/processing device . Computer program instructions for performing the operations herein may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, integrated circuit configuration data, or in the form of one or more source or object code written in any combination of programming languages, including object-oriented programming languages—such as Smalltalk, C++, etc., and procedural programming languages—such as the “C” language or similar programming languages. Computer readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server implement. In cases involving a remote computer, the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as via the Internet using an Internet service provider). connect). In some embodiments, an electronic circuit, such as a programmable logic circuit, field programmable gate array (FPGA), or programmable logic array (PLA), can be customized by utilizing state information of computer-readable program instructions, which can Various aspects of the present application are implemented by executing computer readable program instructions.

The present embodiment provides a graphical application system of PLC software address cross table, including:

The reading module is used to read project information; the project information includes project files, global variables and global area configuration information;

The recording module records the state information of the bytes referenced in all global variables in the engineering information in English, and forms a state cross table of the bytes referenced in the global variables; wherein, each global variable is related to the state information in the state cross table One-to-one address correspondence;

The application module is used to select a referenced state of a byte in the state cross table of the byte referenced in the variable; traverse all project files to determine whether there is a referenced state containing the byte in the project file If so, record the name of the project file to which the global variable belongs and the location information of the global variable, and display them; if not, return to traverse all project files.

Please refer to FIG. 8 , which shows a schematic structural diagram of an application system for PLC software address cross-table graphics in an embodiment. As shown in FIG. 8 , the PLC software address cross-table graphical application system 8 includes a reading module 81 , a recording module 82 and an application module 83 .

The reading module 81 is used to read project information; the project information includes project files, global variable area and global area configuration information. The global variable area includes area name, area description, actual size and maximum size; the actual size and maximum size are represented by unit byte. The global variable information includes area name, data type, address offset and so on.

The recording module 82 is used to record the state information of the bytes referenced in all global variables in the project information, and form a state cross table of the bytes referenced in the global variables; wherein, each global variable is intersected with the state The addresses in the table correspond one by one.

In this embodiment, in order to realize the function of recording the state value of all bytes being applied in consideration of memory and operating speed, the recording module 82 uses PLC software to receive the instruction of the allocation list; according to the global area configuration information, for each Each area establishes the reference state of byte (the reference state of byte is represented by flag), and configure memory for this reference state (reference state configuration memory is represented by pFlag); traverse the global variable, obtain its global variable information; according to The data type records the reference state of the corresponding byte in the memory configured for the reference state; according to the reference state of the byte recorded in the memory of all areas, a state cross table of the byte referenced in the global variable is formed

In this embodiment, the size of memory configured for the reference state is twice the size of each region. The data type of the reference state of the byte adopts short data; the reference state of the byte includes 0, the original state of the byte or the result of ORing the original states of multiple bytes. The first column in the cross table of the referenced state of the byte in the global variable is the byte in the variable, and the first row is the corresponding 8 bits and their binary digits in the byte; if the reference state of a byte is gray , it means that the byte is quoted.

The application module 83 is used to select the referenced state of a byte in the state cross table of the byte referenced in the global variable, and calls the read module 81 to read all project files stored in the database; traverse all projects file to determine whether there is a global variable containing the referenced state of the byte in the project file; if so, record the name of the project file to which the global variable belongs and the location information of the global variable, and display it; if not, Return to traverse all project files.

It should be noted that it should be understood that the division of the various modules of the above system is only a division of logical functions, and may be fully or partially integrated into a physical entity or physically separated during actual implementation. Moreover, these modules can be implemented in the form of calling software through processing elements, or can be implemented in the form of hardware, or some modules can be implemented in the form of calling software through processing elements, and some modules can be implemented in the form of hardware. For example, the x module can be a separate processing element, or it can be integrated in a chip of the above-mentioned system. In addition, the x module can also be stored in the memory of the above-mentioned system in the form of program code, and can be invoked by a certain processing element of the above-mentioned system to execute the function of the above-mentioned x module. The implementation of other modules is similar. All or part of these modules can be integrated together, and can also be implemented independently. The processing element mentioned here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software. The above modules may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (Application Specific Integrated Circuit, referred to as ASIC), one or more microprocessors (Digital Singnal Processor, DSP for short), one or more Field Programmable Gate Arrays (Field Programmable Gate Array, FPGA for short), and the like. When one of the above modules is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU for short) or other processors that can call program codes. These modules can be integrated together and implemented in the form of a System-on-a-chip (SOC for short).

The last aspect of this embodiment provides a terminal. The terminal includes: a processor, a memory, a transceiver, a communication interface or/and a system bus; the memory and the communication interface are connected to the processor and the transceiver through the system bus and complete mutual communication For communication, the memory is used to store computer programs, the communication interface is used to communicate with other devices, the processor and the transceiver are used to run computer programs, so that the terminal executes the various steps of the above-mentioned PLC software address cross-table graphic application method.

The system bus mentioned above may be a Peripheral Component Interconnect (PCI for short) bus or an Extended Industry Standard Architecture (EISA for short) bus or the like. The system bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus. The communication interface is used to realize the communication between the database access device and other devices (such as client, read-write library and read-only library). The memory may include a random access memory (Random Access Memory, RAM for short), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

The above-mentioned processor can be a general-purpose processor, including a central processing unit (Central Processing Unit, referred to as CPU), a network processor (Network Processor, referred to as NP), etc.; it can also be a digital signal processor (Digital Signal Processing, referred to as DSP) , Application Specific Integrated Circuit (ASIC for short), Field Programmable Gate Array (Field Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

The scope of protection of the graphical application method of the PLC software address cross table described in the present invention is not limited to the execution sequence of the steps listed in this embodiment, and is realized by adding or subtracting steps and replacing steps in the prior art according to the principles of the present invention. All schemes are included in the protection scope of the present invention.

The present invention also provides a graphical application system for PLC software address cross-tables, which can realize the graphical application method for PLC software address cross-tables described in the present invention, but the present invention The implementation device of the graphical application method of the PLC software address cross table includes but is not limited to the structure of the application system of the graphical PLC software address cross table listed in this embodiment. All structural deformations and replacements are included in the protection scope of the present invention.

In summary, the graphical application method, system, terminal and medium of the PLC software address cross table described in the present invention have the following beneficial effects:

First, the present invention turns the address occupancy into a graph, so that the occupancy situation can be seen at a glance and there is no need to rummage in a large area for sorting.

Second, the present invention puts the address occupancy situation and the location used by the address in the same interface, which effectively solves the problem of conveniently jumping to the used location while checking the address occupancy situation. The invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (10)

1. a graphical application method of PLC software address cross table, it is characterized in that, comprising: Read project information; the project information includes project files, global variable areas and global area configuration information; Record the state information of the bytes referenced in all global variables in the project information, and form a state cross table of the bytes referenced in the global variables; wherein, each global variable corresponds to the address in the state cross table one by one ; Selecting a referenced state of a byte in the state cross table of the byte being referenced in the global variable; Traverse all project files to determine whether there is a global variable containing the referenced state of the byte in the project file; if so, record the name of the project file to which the global variable belongs and the location information of the global variable, and display it; if No, return to the step of traversing all project files. 2. the graphical application method of PLC software address cross table according to claim 1, is characterized in that, described global variable area comprises area name, area description, actual size and maximum size; Actual size and maximum size use unit word Section said. 3. the graphical application method of the PLC software address cross table according to claim 2, is characterized in that, the state information that byte is quoted in all global variables in the described project information of the record, and forms the word in the global variable The steps for section referenced state crosstab include: According to the global area configuration information, a byte reference state is established for each area, and memory is configured for the reference state; the global variable information includes area name, data type and address offset. 4. the graphical application method of the PLC software address cross table according to claim 3, is characterized in that, the size of the reference state configuration memory is twice the size of each area. 5. the graphical application method of the PLC software address cross table according to claim 3, is characterized in that, the state information that the byte in all global variables in the described record project information is quoted, and forms the word in the global variable The steps for the section referenced state crosstab also include: Traversing the global variables to obtain their global variable information; Record the reference state of the corresponding byte to the memory configured for the reference state according to the data type; According to the reference state of the byte recorded in the memory of all areas, a state cross table of the byte referenced in the global variable is formed. 6. the graphical application method of PLC software address cross table according to claim 3, is characterized in that, the first column in the state cross table that byte is quoted in the global variable is the byte in the variable, the first The corresponding 8 bits in the behavior byte and their binary digits; if the reference status of a byte is gray, it means that the byte is referenced. 7. the graphical application method of PLC software address cross table according to claim 4, is characterized in that, The data type of the reference state of the byte adopts short data; The reference state of a byte includes 0, the original state of a byte, or the result of ORing the original states of multiple bytes. 8. A graphical application system of PLC software address cross table, characterized in that, comprising: The reading module is used to read project information; the project information includes project files, global variables and global area configuration information; The recording module records the state information of the bytes referenced in all global variables in the engineering information in English, and forms a state cross table of the bytes referenced in the global variables; wherein, each global variable is related to the state information in the state cross table One-to-one address correspondence; The application module is used to select a referenced state of a byte in the state cross table of the byte referenced in the variable; traverse all project files to determine whether there is a referenced state containing the byte in the project file If so, record the name of the project file to which the global variable belongs and the location information of the global variable, and display them; if not, return to traverse all project files. 9. A computer-readable storage medium, on which a computer program is stored, characterized in that, when the program is executed by a processor, the application method of PLC software address cross-table graphics described in any one of claims 1 to 7 is realized . 10. A terminal, comprising: a processor and a memory; The memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the terminal executes the graphical application of the PLC software address cross table as described in any one of claims 1 to 7 method.

Images