CN117148004A

CN117148004A - Test method and production line automation system

Info

Publication number: CN117148004A
Application number: CN202311110430.4A
Authority: CN
Inventors: 刘清成; 胡伟康; 郑峰; 汪传乐; 李朝俊; 熊言夫; 吴建民
Original assignee: BOE Technology Group Co Ltd; Beijing Zhongxiangying Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Beijing Zhongxiangying Technology Co Ltd
Priority date: 2023-08-30
Filing date: 2023-08-30
Publication date: 2023-12-01

Abstract

The embodiment of the application provides a testing method and a production line automation system, comprising the following steps: writing the data to be tested corresponding to the event to be tested into a programmable logic controller, so that the equipment automation module stores the data to be tested in the programmable logic controller into a buffer area of the equipment automation module, and reports first information corresponding to the data to be tested to an upper manufacturing execution module, so that the upper manufacturing execution module can download second information replied by the equipment automation module aiming at the event to be tested to the equipment automation module after responding to the first information, and the equipment automation module can download the data corresponding to the second information to the programmable logic controller after responding to the second information; and after the instruction for reading the data corresponding to the second information is acquired, displaying the data corresponding to the second information. The device automation module is used for testing the functions of reporting events and downloading information of the device automation module.

Description

Test method and production line automation system

Technical Field

The application relates to the technical field of automatic equipment, in particular to a testing method and a production line automatic system.

Background

The existing test tool in the production line automation system does not have the function of interacting with the manufacturing execution system (Manufacturing Execution System, MES), cannot report the data to be tested to the MES for testing, cannot receive the information replied by the MES to the data to be tested, and therefore cannot test the function of reporting events and the function of downloading information of the equipment automation system (Equipment Automation System, EAS).

Disclosure of Invention

The embodiment of the application aims to provide a testing method and a production line automation system, which can test the function of reporting events and the function of downloading information of an equipment automation system. The specific technical scheme is as follows:

in a first aspect, an embodiment of the present application provides a testing method applied to a testing tool in a production line automation system, where the production line automation system further includes a programmable logic controller, an equipment automation module, and an upper layer manufacturing execution module, the method includes:

displaying a main test interface; wherein the main test interface comprises a programmable logic controller button;

after an instruction for operating the programmable logic controller button is acquired, switching the main test interface to a programmable logic controller test interface; wherein, the programmable logic controller test interface includes: the device comprises a connection frame, a bit address input frame, a first data display frame, a first data writing button, a first data reading button, a register address input frame, a data length frame, a second data display frame, a second data writing button and a second data reading button;

Writing data to be tested corresponding to an event to be tested into the programmable logic controller through the connecting frame, the register address input frame, the data length frame, the second data display frame and the second data writing button, so that the equipment automation module stores the data to be tested in the programmable logic controller into a self cache area, and reports first information corresponding to the data to be tested to the upper manufacturing execution module, so that the upper manufacturing execution module can download second information replied by the upper manufacturing execution module for the event to be tested to the equipment automation module after responding to the first information, and the equipment automation module can download the data corresponding to the second information to the programmable logic controller after responding to the second information.

And after an instruction for reading the data corresponding to the second information is acquired, displaying the data corresponding to the second information through the register address input frame, the second data display frame and the second read data button.

In one possible implementation manner, the writing the data to be tested corresponding to the event to be tested into the programmable logic controller includes:

After an instruction for inputting an internet protocol address aiming at an address frame of a test interface of the programmable logic controller is acquired, communicating with the programmable logic controller through the internet protocol address; wherein, the internet protocol address is the internet protocol address corresponding to the programmable logic controller;

after an instruction for carrying out port input on a port frame of a test interface of the programmable logic controller is acquired, writing data to be tested corresponding to an event to be tested into the programmable logic controller through the port; the port is an open port of the programmable logic controller.

In one possible implementation manner, when the programmable logic controller is a virtual programmable logic controller, after acquiring an instruction for operating the programmable logic controller button, switching the main test interface to a programmable logic controller test interface, including:

after an instruction for operating a virtual programmable logic controller button in the main test interface is acquired, switching the main test interface to a virtual programmable logic controller test interface;

The writing the data to be tested corresponding to the event to be tested into the programmable logic controller comprises the following steps:

after an instruction for inputting a connection key aiming at a connection key frame of a virtual programmable logic controller test interface is acquired, connecting the virtual programmable logic controller with the connection key, and writing data to be tested corresponding to an event to be tested into the virtual programmable logic controller; wherein the connection key is a virtual transmission control protocol.

In one possible implementation manner, after the writing the data to be tested corresponding to the event to be tested into the programmable logic controller, the method further includes:

writing a first numerical value into a first bit address of the data to be tested, so that the equipment automation module scans the first bit address, reads the data to be tested in the programmable logic controller when the numerical value in the first bit address is the first numerical value, and stores the data to be tested into a buffer area of the equipment automation module; wherein, the numerical value in the first bit address represents whether the data to be tested is reported to the equipment automation module by the programmable logic controller;

After the data to be tested is reported to the equipment automation module by the programmable logic controller, writing a second numerical value into the first bit address, so that the equipment automation module reports first information corresponding to the data to be tested to the upper manufacturing execution module after scanning that the numerical value in the first bit address is the second numerical value; and the second value represents that the data to be tested is successfully reported.

In one possible implementation manner, the writing the first value to the first bit address of the data to be tested includes:

after a first instruction for inputting a first bit address of the data to be tested aiming at a bit address input box of a testing interface of the programmable logic controller is obtained, a second instruction for inputting a first numerical value aiming at a first data display box is obtained, and a third instruction for operating the first data writing button is obtained, the first numerical value is written into the first bit address in response to the first instruction, the second instruction and the third instruction.

In a possible implementation manner, the writing, by the port, the data to be tested corresponding to the event to be tested into the programmable logic controller includes:

Writing the data to be tested corresponding to the event to be tested into a register corresponding to a first register address through the port; the first register address is a register address used for storing an event to be tested in the programmable logic controller.

In a possible implementation manner, the writing, by the port, the data to be tested corresponding to the event to be tested into the register corresponding to the first register address includes:

after a fourth instruction for inputting a first register address aiming at a register address input box of a programmable logic controller test interface is obtained, a fifth instruction for inputting a word length of data to be tested corresponding to the event to be tested aiming at a data length box of the programmable logic controller test interface is obtained, a sixth instruction for inputting the data to be tested aiming at a second data display box is obtained, and a seventh instruction for operating a second write data button is obtained, the data to be tested is converted into a specified data type and is written into a register corresponding to the first register address through the port in response to the fourth instruction, the fifth instruction, the sixth instruction and the seventh instruction; wherein the specified data type includes: binary, information exchange standard codes and virtual storage.

In one possible implementation manner, the writing, after the data to be tested is reported to the device automation module by the programmable logic controller, a second value to the first bit address includes:

writing a second numerical value into the first bit address after the equipment automation module writes a third numerical value into the second bit address, so that the equipment automation module writes a fourth numerical value into the second bit address after scanning that the numerical value in the first bit address is the second numerical value; the device automation module writes a third numerical value into a second bit address of the data to be tested after storing the data to be tested into a buffer area of the device automation module.

In one possible embodiment, the device automation module is configured to generate a log for the value change in the first bit address, the value change in the second bit address, and the data to be tested.

In one possible implementation manner, after the instruction for reading the data corresponding to the second information is acquired, displaying the data corresponding to the second information through the register address input box, the second data display box and the second read data button includes:

After an eighth instruction for inputting the second register address for a register address input box of a test interface of the programmable logic controller is obtained, a ninth instruction for operating the second read data button is obtained, and then data corresponding to the second information is displayed in the second data display box in response to the eighth instruction and the ninth instruction; and after the equipment automation module responds to the second information, downloading data corresponding to the second information into a register corresponding to a second register address used for receiving the second information in the programmable logic controller.

In one possible embodiment, the method further comprises:

after a communication protocol switching instruction is acquired, switching the communication protocol of the communication protocol by changing configuration information in a configuration file written with an extensible markup language so as to adapt to the programmable logic controller with different communication protocols; the communication protocol comprises a high-speed information communication protocol, an information carrying communication protocol, an open industrial network protocol and an open standard communication protocol.

In one possible implementation manner, the types of the data to be tested include integer type data, double-precision floating point type data and character string type data.

In one possible embodiment, before writing the data to be tested corresponding to the event to be tested into the programmable logic controller, the method further includes:

after an instruction for operating an upper manufacturing execution module interactive button in the main test interface is acquired, switching the main test interface to the upper manufacturing execution module interactive test interface, and displaying preset configuration information in an information list of the upper manufacturing execution module interactive test interface;

and after acquiring an instruction for operating a connection button of the upper-layer manufacturing execution module interactive test interface, connecting the connection button with the upper-layer manufacturing execution module.

In a second aspect, embodiments of the present application provide a production line automation system, the system comprising:

a programmable logic controller, an equipment automation module, an upper layer manufacturing execution module and a test tool;

the testing tool is used for writing the data to be tested corresponding to the event to be tested into the programmable logic controller;

the equipment automation module is used for storing the data to be tested in the programmable logic controller into a self cache area and reporting first information corresponding to the data to be tested to the upper manufacturing execution module;

The upper layer manufacturing execution module is used for responding to the first information and then downloading second information to the equipment automation module; the second information is information that the upper manufacturing execution module replies to the event to be tested;

the equipment automation module is further used for downloading data corresponding to the second information to the programmable logic controller after receiving the second information;

the test tool is further configured to display data corresponding to the second information after an instruction for reading the data corresponding to the second information is acquired.

In one possible embodiment, the test tool is further configured to: displaying a main test interface of the self; wherein the main test interface comprises a programmable logic controller button; after an instruction for operating the programmable logic controller button is acquired, switching the main test interface to a programmable logic controller test interface; after an instruction for inputting an internet protocol address aiming at an address frame of a test interface of the programmable logic controller is acquired, communicating with the programmable logic controller through the internet protocol address; wherein, the internet protocol address is the internet protocol address corresponding to the programmable logic controller;

The test tool is specifically used for:

In one possible implementation, when the programmable logic controller is a virtual programmable logic controller, the test tool is specifically configured to: after an instruction for operating a virtual programmable logic controller button in the main test interface is acquired, switching the main test interface to a virtual programmable logic controller test interface; after an instruction for inputting a connection key aiming at a connection key frame of a virtual programmable logic controller test interface is acquired, connecting the virtual programmable logic controller with the connection key, and writing data to be tested corresponding to an event to be tested into the programmable logic controller; wherein the connection key is a virtual transmission control protocol.

In one possible embodiment, the test tool is further configured to: writing a first numerical value into a first bit address of data to be tested after writing the data to be tested corresponding to an event to be tested into the programmable logic controller; wherein, the numerical value in the first bit address represents whether the data to be tested is reported to the equipment automation module by the programmable logic controller;

The equipment automation module is specifically used for: scanning the first bit address, and when the numerical value in the first bit address is the first numerical value, reading the data to be tested in the programmable logic controller and storing the data to be tested into a self cache area;

the test tool is also for: after the data to be tested is reported to the equipment automation module by the programmable logic controller, writing a second numerical value into the first bit address; the second value indicates that the data to be tested is successfully reported;

the equipment automation module is specifically used for: and after the numerical value in the first bit address is scanned to be the second numerical value, reporting first information corresponding to the data to be tested to the upper manufacturing execution module.

In one possible embodiment, the test tool is specifically used for: after a first instruction for inputting a first bit address of the data to be tested aiming at a bit address input box of a test interface of the programmable logic controller is obtained, a second instruction for inputting a first numerical value aiming at a data display box corresponding to the bit address input box is obtained, and a third instruction for operating a data writing button corresponding to the bit address input box is obtained, the first numerical value is written into the first bit address in response to the first instruction, the second instruction and the third instruction.

In one possible embodiment, the test tool is specifically used for: writing the data to be tested corresponding to the event to be tested into a register corresponding to a first register address; the first register address is a register address used for storing an event to be tested in the programmable logic controller.

In one possible embodiment, the test tool is specifically used for: after a fourth instruction for inputting a first register address aiming at a register address input box of a programmable logic controller test interface is obtained, a fifth instruction for inputting a word length of data to be tested corresponding to the event to be tested aiming at a data length box of the programmable logic controller test interface is obtained, a sixth instruction for inputting the data to be tested aiming at a data display box corresponding to the register address input box is obtained, a seventh instruction for operating a write data button corresponding to the register address input box is obtained, and after the fourth instruction, the fifth instruction, the sixth instruction and the seventh instruction are responded, the data to be tested are converted into specified data types and written into a register corresponding to the first register address; wherein the specified data type includes: binary, information exchange standard codes and virtual storage.

In one possible embodiment, the device automation module is further configured to:

after the data to be tested are stored in the buffer area of the data to be tested, writing a third numerical value into a second bit address of the data to be tested; the numerical value in the second bit address represents that the programmable logic controller replies the report condition of the data to be tested to the equipment automation module;

the test tool is specifically used for: writing a second value to the first bit address after the device automation module writes the third value to the second bit address;

the device automation module is further to: writing a fourth value into the second bit address after scanning that the value in the first bit address is the second value; wherein the fourth value indicates that the second bit address has been reset.

a log is generated for the change in value in the first bit address, the change in value in the second bit address, and the data to be tested.

In one possible embodiment, the device automation module is specifically configured to:

After the second information is received, downloading data corresponding to the second information into a register corresponding to a second register address; the second register address is a register address used for receiving the second information in the programmable logic controller;

the test tool is specifically used for: after an instruction for operating the programmable logic controller button is acquired, switching a current interface to the programmable logic controller test interface; after an eighth instruction for inputting the second register address aiming at a register address input box of a programmable logic controller test interface is obtained, a ninth instruction for operating a read data button corresponding to the register address input box is obtained, and then data corresponding to the second information are displayed in a data display box corresponding to the register address input box in response to the eighth instruction and the ninth instruction.

In one possible embodiment, the test tool is further configured to: after a communication protocol switching instruction is acquired, switching the communication protocol of the communication protocol by changing configuration information in a configuration file written with an extensible markup language so as to adapt to the programmable logic controller with different communication protocols; the communication protocol comprises a high-speed information communication protocol, an information carrying communication protocol, an open industrial network protocol and an open standard communication protocol.

In one possible embodiment, before writing the data to be tested corresponding to the event to be tested into the programmable logic controller, the test tool is further configured to:

after an instruction for operating an upper manufacturing execution module interactive button in the main test interface is acquired, switching the main test interface to the upper manufacturing execution module interactive test interface, and displaying preset configuration information in an information list of the upper manufacturing execution module interactive test interface; and after acquiring an instruction for operating a connection button of the upper-layer manufacturing execution module interactive test interface, connecting the connection button with the upper-layer manufacturing execution module.

The embodiment of the application has the beneficial effects that:

the embodiment of the application provides a testing method and a production line automation system, wherein the testing method is applied to a testing tool in the production line automation system, the production line automation system also comprises a programmable logic controller, an equipment automation module and an upper layer manufacturing execution module, and the testing method comprises the following steps: displaying a main test interface; wherein the main test interface comprises a programmable logic controller button; after an instruction for operating the programmable logic controller button is acquired, switching the main test interface to the programmable logic controller test interface; wherein the programmable logic controller test interface comprises: the device comprises a connection frame, a bit address input frame, a first data display frame, a first data writing button, a first data reading button, a register address input frame, a data length frame, a second data display frame, a second data writing button and a second data reading button; the method comprises the steps that data to be tested corresponding to an event to be tested are written into a programmable logic controller through a connecting frame, a register address input frame, the data length frame, a second data display frame and a second data writing button, so that an equipment automation module stores the data to be tested in the programmable logic controller into a buffer area of the equipment automation module, first information corresponding to the data to be tested is reported to an upper manufacturing execution module, after the upper manufacturing execution module responds to the first information, second information replied by the equipment automation module for the event to be tested is downloaded to the equipment automation module, and after the equipment automation module responds to the second information, the data corresponding to the second information is downloaded to the programmable logic controller; after an instruction for reading the data corresponding to the second information is acquired, the data corresponding to the second information is displayed through the register address input frame, the second data display frame and the second read data button. The test tool in the test method provided by the application can report the first information corresponding to the data to be tested to the upper manufacturing execution module for testing when the test tool is tested, and after the equipment automation module downloads the second information which is returned by the upper manufacturing execution module for the event to be tested to the programmable logic controller, the test tool displays the data corresponding to the second information according to the related instruction, namely, the test tool can receive the second information which is returned by the upper manufacturing execution module for the event to be tested, so that the test tool can interact with the upper manufacturing execution module, the function of reporting the event and the function of downloading the information of the equipment automation module are tested, and the safety of the equipment automation module is ensured.

Of course, it is not necessary for any one product or method of practicing the application to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the application, and other embodiments may be obtained according to these drawings to those skilled in the art.

FIG. 1a is a schematic flow chart of a testing method according to an embodiment of the present application;

FIG. 1b is a schematic diagram of a PLC test interface for an entity programmable logic controller of a test tool according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a second flow chart of a testing method according to an embodiment of the present application;

FIG. 3 is a third flow chart of a testing method according to an embodiment of the present application;

FIG. 4 is a fourth flow chart of a testing method according to an embodiment of the present application;

FIG. 5 is a fifth flow chart of a testing method according to an embodiment of the present application;

FIG. 6 is a sixth flow chart of a testing method according to an embodiment of the present application;

FIG. 7 is a seventh flowchart of a testing method according to an embodiment of the present application;

FIG. 8 is a schematic diagram of an eighth flow chart of a testing method according to an embodiment of the present application;

FIG. 9 is a ninth flowchart of a testing method according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a first configuration of an automatic production line system according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a second configuration of an automatic production line system according to an embodiment of the present application;

FIG. 12 is a schematic diagram of a third configuration of an automatic production line system according to an embodiment of the present application;

FIG. 13 is a schematic diagram of a fourth configuration of an automatic production line system according to an embodiment of the present application;

FIG. 14 is a schematic view of a fifth configuration of an automatic production line system according to an embodiment of the present application;

FIG. 15 is a schematic diagram of a virtual Programmable Logic Controller (PLC) test interface of a test tool according to an embodiment of the present application;

FIG. 16 is a schematic diagram of an upper manufacturing execution module MES interactive test interface of a test tool according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by the person skilled in the art based on the present application are included in the scope of protection of the present application.

First, a description will be made of a functional test of the device automation system (Equipment Automation System, EAS) in the related art. The equipment automation system EAS is a set of industrial control software for collecting various data in the production process of equipment, controlling the actions of the equipment, the technological process of products and the parameters of the process. The equipment automation system EAS is the lowest data acquisition system in the industrial software, and provides data support for upper systems such as an upper manufacturing execution system (Manufacturing Execution System, MES), a formula management system (Recipe Manager System, RMS), a fault detection control system (Fault Detec Control, FDC), a marketing data warehouse (Marketing Data Warehouse, MDW) and the like, and simultaneously automatically conveys information fed back by the upper systems to equipment, so that intelligent intelligence manufacturing, unmanned factories and the like are realized. At present, a programmable logic controller (Programmable Logic Controller, PLC) is still adopted for controlling production line equipment in a factory, but various data and production parameters of the PLC during production cannot be directly reported to an upper system, so various data, control equipment actions, product process flows and process parameters in the internal production process of the PLC are required to be read through an Equipment Automation System (EAS), then the information is analyzed and compiled to form data types matched with the upper system, reporting of the production data and parameters is realized, meanwhile, the upper system receives the production management data, and then the analysis and the compiling are written into the PLC to realize control and management of production and manufacture.

Because of the differences of factories, production lines and products, for the equipment automation system EAS, the business level is non-standardized except the bottom frame, each production line needs an independent equipment automation system EAS, and the independent equipment automation system EAS system can facilitate the production management of the current production line and can carry out secondary modification development when the product type and the production parameters are replaced by the production line. Since the development process of the front equipment automation system EAS involves the reporting and downloading of a lot of production information, the equipment automation system EAS is required to be free from errors during operation. It is necessary to test the device automation system EAS during its redevelopment. The method mainly comprises the following three points in the process of debugging an EAS (electronic article surveillance) of an equipment automation system, wherein firstly, the information in the production process is particularly more, the report and the download of each piece of production information are required to be tested during development, whether the production information can be successfully reported or not is verified, and whether the returned information can be successfully downloaded or not aiming at the reported event upper manufacturing execution system MES is verified; secondly, because one production line is provided with more than ten Programmable Logic Controllers (PLC), one Equipment Automation System (EAS) needs to be simultaneously connected with a plurality of PLC, and the information reported by each PLC is inconsistent, namely the Equipment Automation System (EAS) is required to be capable of simultaneously communicating with all PLC and accurately distinguishing the arrival and departure of each piece of information; thirdly, the equipment automation system EAS needs to log the reporting condition of each programmable logic controller PLC and each reported production information and the recovery condition of the production information by the upper manufacturing execution system MES during operation. Therefore, in actual development, the test is performed through a Programmable Logic Controller (PLC) to avoid the influence on the progress of product deployment and even the production efficiency caused by the running error of a later-stage Equipment Automation System (EAS).

There are two cases of EAS testing in the current device automation systems: 1. self-test of a single event in development; 2. the equipment automation system EAS issues production line field tests before online.

For the first test case, a Programmable Logic Controller (PLC) of one entity is adopted to replace a Programmable Logic Controller (PLC) of equipment. Because of the non-standardization of the business layer, the programmable logic controller PLC used is not programmed during testing, and the testing requires that the production data required for the event be stored in the programmable logic controller PLC, so that other software, such as the programmable logic controller PLC software, is required to be used for writing the data into the programmable logic controller PLC, which requires that a developer needs to use a new programming software or a development team to have an electrical engineer, and the programming software needs copyright support, thereby increasing development cost. And secondly, a standard communication protocol is required between the equipment automation system EAS and the programmable logic controller PLC, and different communication protocols are required by different brands of programmable logic controllers PLC. When some production data information is reported to the upper manufacturing execution system MES, the upper manufacturing execution system MES is required to reply, namely whether the test equipment automation system EAS can report event data and download reply information of the upper manufacturing execution system MES is realized.

For the second test case, when the EAS development of the device automation system is completed and the self-test is successful. When the OnLine is released, onLine OnLine test needs to be performed on the production line. In the early stage of testing, each programmable logic controller PLC needs to be tested with an Equipment Automation System (EAS) one by one, and although a field PLC engineer can read, write and control the programmable logic controller PLC, the existence of a testing tool can cope with the condition that the PLC engineer is not in the field, so that the test progress is prevented from being prolonged. Meanwhile, in actual production, reporting of product information is not unchanged, and when new reporting information needs to be added after the EAS of the equipment automation system is released, a test tool still needs to be used for testing. And when the type of products produced by the production line is changed, the secondarily developed EAS system also needs a test tool to test.

Whether self-test or production line field test is carried out, the test tool in the existing production line automation system does not have the function of interacting with the manufacturing execution system MES, cannot report data to be tested to the manufacturing execution system MES for testing, cannot receive information replied by the manufacturing execution system MES to the data to be tested, and therefore cannot test the function of reporting events and the function of downloading information of the equipment automation system EAS.

In order to solve the above-mentioned problems, the embodiment of the present application provides a testing method applied to the testing tool 14 in the production line automation system 1, which further includes the programmable logic controller 11, the equipment automation module 12 and the upper layer manufacturing execution module 13.

It should be noted here that, in order to define the inclusion relationship between the production line automation system, the equipment automation system EAS and the upper layer manufacturing execution system MES in the present application, the equipment automation system EAS in the above background art is named as an equipment automation module, the upper layer manufacturing execution system MES in the above background art is named as an upper layer manufacturing execution module, and all the following descriptions are omitted.

Referring to fig. 1a, the test method comprises the steps of:

step S101, a main test interface is displayed; wherein the main test interface includes a programmable logic controller button.

Step S102, after an instruction for operating the programmable logic controller button is obtained, switching the main test interface to a programmable logic controller test interface; wherein, the programmable logic controller test interface includes: the device comprises a connection frame, a bit address input frame, a first data display frame, a first data writing button, a first data reading button, a register address input frame, a data length frame, a second data display frame, a second data writing button and a second data reading button.

In one example, when the PLC is an entity PLC, the main test interface of the test tool may include an entity PLC button, and may further include a virtual PLC button 2 and an upper manufacturing execution module MES interaction button 3. After clicking the PLC button 40 of the physical programmable logic controller, the main test interface is switched to the PLC test interface 6 of the physical programmable logic controller, referring to fig. 1b, the PLC test interface 6 of the physical programmable logic controller includes: a connection frame (PLC address frame 8, port frame 4), a data type selection column 5, a control button 7, a connection button 9, a disconnect button 10, a Bit address input frame 11, a register address input frame 12, a uint16 digital type W zone address 13, an int16 digital type W zone address 14, a uint32 digital type W zone address 15, an int32 digital type W zone address 16, a write data button 17 (including a first write data button, a second write data button and other write data buttons), the first write data button being a write data button corresponding to the Bit address input frame 11, the second write data button being a write data button corresponding to the register address input frame 12, the other write data buttons being write data buttons corresponding to the other address input frames), a read data button 18 (including a first read data button, a second read data button and other read data buttons, the first read data button is a read data button corresponding to the Bit address input frame 11, the second read data button is a read data button corresponding to the register address input frame 12, the other read data buttons are read data buttons corresponding to other address input frames), the data length frame 19 and the data display frame 20 (including a first data display frame, a second data display frame and other data display frames), the first data display frame is a data display frame corresponding to the Bit address input frame 11, the second data display frame is a data display frame corresponding to the register address input frame 12, the other data display frame is a data display frame corresponding to the other address input frame), the PLC address frame 8 is used for inputting the IP address of the entity PLC to be connected, the port frame is used for inputting the port number opened by the entity PLC, the data type selection field 5 can be provided with three options, each option corresponds to one data type, which can be three types of ASCII, binary and Virtual Storage, the connection button 9 can realize the communication connection between a test tool and a physical PLC, the disconnection button 10 is disconnected, the Bit address input box 11, the register address input box 12, the uint16 digital type W area address 13, the int16 digital type W area address 14, the uint32 digital type W area address 15 and the int32 digital type W area address 16 are sequentially arranged from top to bottom, the data display box 20 is provided with six groups for writing and reading real-time data, the write data button 17 and the read data button 18 are respectively provided with six groups for respectively reading and writing Bit values, data of a register and various types of data of a W area, and the data length box 19 is arranged on the right side of the register address input box 12 and is used for selecting the length of input data characters.

Step S103, writing the data to be tested corresponding to the event to be tested into the programmable logic controller through the connection frame, the register address input frame, the data length frame, the second data display frame and the second data writing button, so that the device automation module stores the data to be tested in the programmable logic controller into a buffer area of the device automation module, and reports the first information corresponding to the data to be tested to the upper manufacturing execution module, so that the upper manufacturing execution module downloads the second information replied by the device automation module for the event to be tested to the device automation module after responding to the first information, and downloads the data corresponding to the second information to the programmable logic controller after responding to the second information.

In one example, the event to be tested may be a series of production data of a currently produced parameter, such as a Panel ID (Panel Identity document, panel identification number), a material name, a material number, a material remaining amount, a hydro-pneumatic usage, a Box ID (Box Identity document, box identification number), a grade of Panel detection, and the like.

Step S104, after obtaining the instruction for reading the data corresponding to the second information, displaying the data corresponding to the second information through the register address input frame, the second data display frame and the second read data button.

In the embodiment of the application, the test tool can report the first information corresponding to the data to be tested to the upper manufacturing execution module MES for testing when testing, after the equipment automation module EAS downloads the second information replied by the upper manufacturing execution module MES for the event to be tested to the programmable logic controller PLC, the test tool displays the data corresponding to the second information according to the related instruction, namely, the test tool can receive the second information replied by the upper manufacturing execution module MES for the event to be tested, so that the test tool can interact with the upper manufacturing execution module MES, the function of reporting the event by the equipment automation module EAS and the function of downloading the information are tested, and the safety uploading of the equipment automation module EAS is ensured.

In a possible implementation manner, referring to fig. 2, a second flow chart of the test method provided in the embodiment of the present application is detailed in step S103 based on fig. 1a, and includes the following steps:

Step S201, after obtaining the instruction of inputting the Internet protocol address for the address frame of the programmable logic controller test interface, communicating with the programmable logic controller through the Internet protocol address; wherein, the internet protocol address is the internet protocol address corresponding to the programmable logic controller.

Step S202, after obtaining an instruction for carrying out port input on a port frame of a test interface of the programmable logic controller, writing data to be tested corresponding to an event to be tested into the programmable logic controller through the port; the port is an open port of the programmable logic controller.

When the programmable logic controller PLC test is carried out, the test tool needs to be connected with the programmable logic controller PLC, and firstly, an executable file of the test tool is clicked. In one example, when the PLC is an entity PLC, after the test tool is started, the button of the entity PLC is clicked to switch the main test interface to the entity PLC test interface, and the IP address of the PLC currently required to be connected is input in the address frame of the entity PLC test interface, for example 192.168.3.3, so that the test tool can communicate with the entity PLC through the IP address. And inputting an open port of the entity programmable logic controller PLC, such as 7001, into a port box of the testing interface of the entity programmable logic controller PLC, wherein a testing tool can realize data interaction with the entity programmable logic controller PLC through the port. After the designated data type written into the entity programmable logic controller PLC is selected by the data type selection column of the entity programmable logic controller PLC test interface, clicking a connection button of the entity programmable logic controller PLC test interface, turning the connection button grey, and connecting the test tool with the entity programmable logic controller PLC. After the testing tool is connected with the entity programmable logic controller PLC, testing of the event to be tested is started.

In the embodiment of the application, the testing tool can realize communication with the entity programmable logic controller PLC through the IP address of the current entity programmable logic controller PLC, and can realize data interaction with the entity programmable logic controller PLC through the port opened by the current entity programmable logic controller PLC.

In a possible implementation manner, when the programmable logic controller is a virtual programmable logic controller, referring to fig. 3, a third flow chart of the testing method provided by the embodiment of the present application is a schematic diagram, and based on fig. 1a, step S102 and step S103 are respectively refined, and include the following steps:

step S301, after obtaining an instruction for operating a virtual programmable logic controller button in the main test interface, switching the main test interface to a virtual programmable logic controller test interface.

The virtual programmable logic controller test interface schematic is shown in fig. 15.

Step S302, after obtaining an instruction for inputting a connection key for a connection key frame of a test interface of the virtual programmable logic controller, connecting the virtual programmable logic controller with the connection key, and writing data to be tested corresponding to an event to be tested into the virtual programmable logic controller; wherein the connection key is a virtual transmission control protocol.

In the actual testing process, when the physical programmable logic controller PLC is insufficient or not, the virtual programmable logic controller PLC can be used for testing, and the virtual programmable logic controller PLC is a tool simulating the programmable logic controller PLC and can be understood as software arranged on a computer. After the testing tool is opened, clicking a PLC button of the virtual programmable logic controller, and switching to a PLC testing interface of the virtual programmable logic controller. Then, the connection key is input into the connection key box (i.e. the connection box in fig. 1 a) of the PLC test interface of the virtual programmable logic controller, for example: and TCP/localhost 30000/virtual storage TcPChannelservice, wherein the virtual programmable logic controller PLC address is a local address, the open port is 30000, virtual TCP (transmission control protocol ) channel service is adopted, if the virtual programmable logic controller PLC address to be connected is a non-local address, address information is modified in a file XML configuration file written with an extensible markup language of a test tool, and meanwhile, the content in a connecting key frame of the virtual programmable logic controller PLC is modified. The operation of the testing process of the virtual programmable logic controller PLC is identical to that of the physical programmable logic controller PLC, and reference may be made to the testing process of the physical programmable logic controller PLC, which will not be described herein.

In the embodiment of the application, the test tool provided by the embodiment of the application has the function of communicating with the virtual programmable logic controller PLC, can be directly connected with the virtual programmable logic controller PLC, and can read and write the virtual programmable logic controller PLC.

In a possible implementation manner, referring to fig. 4, a fourth flow chart of the test method provided by the embodiment of the present application, based on fig. 2, further includes the following steps:

step S401, writing a first numerical value into a first bit address of the data to be tested, so that the equipment automation module scans the first bit address, reads the data to be tested in the programmable logic controller when the numerical value in the first bit address is the first numerical value, and stores the data to be tested into a buffer area of the equipment automation module; and the numerical value in the first bit address represents whether the data to be tested is reported to the equipment automation module by the programmable logic controller.

Step S402, after the data to be tested is reported to the device automation module by the programmable logic controller, writing a second numerical value into the first bit address, so that the device automation module reports first information corresponding to the data to be tested to the upper layer manufacturing execution module after scanning that the numerical value in the first bit address is the second numerical value; and the second value represents that the data to be tested is successfully reported.

In one example, if the event to be tested is event a, the corresponding word length of the data to be tested is 5, and according to 1 word=2 bytes, 1 byte=8 bits, the data to be tested is 80 bits (Bit is the smallest memory unit of the computer, and the value of Bit is represented by 0 or 1). The first bit address for triggering the data to be tested to be reported to the device automation module EAS by the programmable logic controller PLC in the data to be tested may be determined according to the manual PLC address Map of the programmable logic controller PLC, for example, the first bit address is B22.

In one example, the first value may be 1 and the second value may be 0; in one example, the first value may be 0 and the second value may be 1. Taking the first value as 1 and the second value as 0 as an example, after the test tool writes 1 into B22, B22 changes to the ON state, and at the moment, the equipment automation module EAS scans to the B22 to the ON state, the data to be tested is triggered to be reported to the equipment automation module EAS by the programmable logic controller PLC. And then the test tool writes 0 into B22, and at the moment, B22 is converted into an OFF state, so that the test of the event to be tested reported to the equipment automation module (EAS) by the Programmable Logic Controller (PLC) is completed once.

In the embodiment of the application, whether the data to be tested is reported to the equipment automation module EAS by the programmable logic controller PLC is determined by the numerical change in the first bit address.

In a possible implementation manner, referring to fig. 5, a fifth flow chart of the testing method provided by the embodiment of the present application is detailed in step S401 based on fig. 4, and includes the following steps:

step S501, after acquiring a first instruction for inputting a first bit address of the data to be tested for a bit address input box of a test interface of the programmable logic controller, acquiring a second instruction for inputting a first numerical value for the first data display box, and acquiring a third instruction for operating the first data writing button, writing the first numerical value into the first bit address in response to the first instruction, the second instruction and the third instruction.

In one example, B22 is first input into a bit address input box of the test interface of the programmable logic controller, taking a first value as 1 as an example, then a value 1 is input into a data display box corresponding to the bit address input box, and a data writing button corresponding to the bit address input box is clicked, at this time, the test tool writes the value 1 into B22, and the B22 is changed to an ON state.

It will be appreciated that the process of writing the second value to the first bit address is the same as the process of writing the first value to the first bit address, and will not be described in detail.

In a possible implementation manner, referring to fig. 6, a sixth flow chart of the testing method provided by the embodiment of the present application is detailed in step S202 based on fig. 5, and includes the following steps:

step S601, writing the data to be tested corresponding to the event to be tested into a register corresponding to a first register address through the port; the first register address is a register address used for storing an event to be tested in the programmable logic controller.

In actual production of the PLC, it is necessary to report up a series of production data such as Panel ID (Panel Identity document, panel ID), material name, material number, material remaining amount, hydro-pneumatic power usage, box ID (Box Identity document, box ID), and grade detected by Panel, and each data report is called an event.

Since the event to be tested is not reported only once, but is reported in a cycle of the number of products or a time period, it is specified in advance that the event to be tested is stored in a specified area, for example, the specified event a is stored in the area of the W area 340, and the first address, for example, B22, for triggering the reporting of the event a, and these contents of the event to be tested are defined in the file of the manual PLC address Map of the programmable logic controller PLC.

In actual production, the change of the numerical value in the first bit address and the writing of the content in the first register address are completed by the programmable logic controller PLC according to the internal program, and the equipment automation module EAS directly reads the numerical value, but in the test process, the programmable logic controller PLC is a blank programmable logic controller PLC, and nothing is in the blank programmable logic controller PLC, so that a test tool is needed to realize the operations of changing the numerical value in the first bit address of the programmable logic controller PLC and writing the data in the first register address.

After the testing tool is connected with the programmable logic controller PLC, the event to be tested starts to be tested. In one example, the event a may be tested, and the register address W area 340 corresponding to the event a is determined according to the manual PLC address Map of the programmable logic controller PLC, and the data corresponding to the event a is written into the register addressed to the W area 340.

In a possible implementation manner, referring to fig. 7, a seventh flowchart of the testing method provided by the embodiment of the present application is detailed in step S601 based on fig. 6, and includes the following steps:

step S701, after obtaining a fourth instruction for inputting a first register address to a register address input box of the programmable logic controller test interface, obtaining a fifth instruction for inputting a word length of data to be tested corresponding to the event to be tested to a data length box of the programmable logic controller test interface, obtaining a sixth instruction for inputting the data to be tested to the second data display box, obtaining a seventh instruction for operating the second write data button, and then converting the data to be tested into a specified data type to be written into a register corresponding to the first register address through the port in response to the fourth instruction, the fifth instruction, the sixth instruction and the seventh instruction; wherein the specified data type includes: binary, standard code for information exchange ASCII code and virtual storage.

In one example, the specified data type selected in the data type selection field of the programmable logic controller PLC test interface may be binary written to the programmable logic controller PLC prior to the test tool being connected to the programmable logic controller PLC. In one example, the event to be tested may be event a, the corresponding data to be tested may be String type data String, first, the address W340 to be written into the internal register of the PLC is input into the register address input box of the PLC test interface, then the word length 5 of the data to be tested is input into the data length box of the PLC test interface, one word is two bytes, then the data to be written into the data display box corresponding to the register address input box, namely the data to be tested is input into the data display box corresponding to the register address input box, for example: abshdsjs 232 (1 word=2 bytes, 1 byte=8 bits, 1 word=16 bits), but care needs to be taken: if the input word is less than 5, the remaining bytes are replaced with spaces, and if the input word exceeds 5, the length needs to be adjusted upwards, otherwise the output part will not be written. Clicking a data writing button corresponding to a register address input box, at the moment, the test tool converts the written data to be tested into binary data, writes the binary data into a register with an internal address W340 of the programmable logic controller PLC, at the moment, clicking a data reading button corresponding to the register address input box reads the data of W340, converts the data into binary data, and prints the binary data in a letter or number mode in the data display box for display.

It can be understood that before the test tool is connected with the programmable logic controller PLC, the designated data type selected in the data type selection field of the programmable logic controller PLC test interface may also be an information exchange standard code ASCII code, and the test tool will convert the written data to be tested into an ASCII code and write the ASCII code into the programmable logic controller PLC.

It can be understood that when the data to be tested corresponding to the event to be tested is the data of the integer data Int type, the length of the data to be written and whether the data has a symbol or not can be selected according to the requirement, the uint16 digital type W area address, the Int16 digital type W area address, the uint32 digital type W area address and the Int32 digital type W area address, and the data can be written according to the above steps. When only data is needed to be read, after the register address input frame corresponding to the data to be read is selected, the corresponding data reading button is directly clicked, and the data at the position can be read in the corresponding data display frame.

In a possible implementation manner, referring to fig. 8, an eighth flowchart of the testing method provided by the embodiment of the present application is a detailed step S402 based on fig. 7, and includes the following steps:

Step S801, after the device automation module writes a third value into a second bit address, writes a second value into the first bit address, so that the device automation module writes a fourth value into the second bit address after scanning that the value in the first bit address is the second value; the device automation module writes a third numerical value into a second bit address of the data to be tested after storing the data to be tested into a buffer area of the device automation module.

The numerical value in the second bit address represents that the programmable logic controller replies the report condition of the data to be tested to the equipment automation module; the fourth value indicates that the second bit address has been reset.

In one example, after writing the data to be tested corresponding to the event a into the register with the internal address of the programmable logic controller PLC being W340, the test tool writes the B22 triggering the event into 1, after the equipment automation module EAS continuously scans the value of B22 into 1, the data in W340 will be read, and the read data is stored in the buffer area of the equipment automation module EAS, then the value of the second address B23 of the Reply in the programmable logic controller PLC will be changed into 1 (the third value), after the value of B23 becomes 1, the test tool rewrites B22 into 0, and then after the equipment automation module EAS rescans the value of B22 into 0, the equipment automation module EAS writes the B23 into 0 (the fourth value), that is, the test of the event a reported to the equipment automation module EAS by the programmable logic controller PLC is completed.

It will be appreciated that in one example, the third value may be 1 and the fourth value may be 0; in one example, the third value may be 0 and the fourth value may be 1.

The device automation module EAS will write a log, and record the value change in the first bit address, the value change in the second bit address, and the data to be tested.

In a possible implementation manner, referring to fig. 9, a ninth flowchart of the testing method provided by the embodiment of the present application is a detailed step S104 based on fig. 8, which includes the following steps:

step S901, after obtaining an eighth instruction for inputting the second register address to a register address input box of the programmable logic controller test interface, obtaining a ninth instruction for operating the second read data button, and then responding to the eighth instruction and the ninth instruction, displaying data corresponding to the second information in the second data display box; and after the equipment automation module responds to the second information, downloading data corresponding to the second information into a register corresponding to a second register address used for receiving the second information in the programmable logic controller.

In the above embodiment, after the event to be tested is reported to the device automation module EAS by the programmable logic controller PLC, the upper manufacturing execution module MES may reply the event to be tested according to the requirement of the event to be tested, or may not reply the event to be tested according to the requirement of the event to be tested. In one example, the event B is an event to be tested that needs to be recovered, after the event B is reported to the device automation module EAS by the programmable logic controller PLC, the device automation module EAS reports the first information corresponding to the data to be tested of the event B to the upper manufacturing execution module MES, the upper manufacturing execution module MES recovers one piece of information, that is, the second information, the device automation module EAS will write the data corresponding to the second information into a register in the programmable logic controller PLC for receiving the reply content of the event B, for example, a register with an address of W area W440, then switches the current interface to the programmable logic controller test interface through a test tool, inputs the W area W440 in a register address input box of the programmable logic controller test interface, clicks a read data button corresponding to the register address input box, and can read the complete data corresponding to the second information.

After the test of the event to be tested is finished, namely after the test of the event reporting function and the information downloading function of the equipment automation module EAS is finished, a disconnection button of a programmable logic controller PLC test interface is clicked, and the connection between the test tool and the programmable logic controller PLC is disconnected.

In production, each equipment and each programmable logic controller PLC need to report a lot of events, and the content of each event is different, so that each event needs to be tested, namely, a test tool needs to be used for connecting the programmable logic controllers PLC, data is read and written to different register addresses and bit addresses of the programmable logic controllers PLC, and whether the test equipment automation module EAS can report and download all the events can be ensured, so that the online test of the equipment automation module EAS can not be problematic.

In the test process, the device automation module EAS writes a log into the whole interaction process, and the log is normal, namely the test is completed.

In one possible embodiment, the test method further comprises:

after a communication protocol switching instruction is acquired, switching the communication protocol of the communication protocol by changing configuration information in a configuration file written with an extensible markup language so as to adapt to the programmable logic controller with different communication protocols; the communication protocols include a high-speed information communication protocol HSMS (High Speed Message Specification), an information carrying communication protocol MC (Message Carrying Protocol), an open industrial network protocol cc_link (Control & Communication Link, control and communication connection), and an open standard communication protocol OPCUA (Open Platform Communications Unified Architecture).

When the communication protocol is required to be switched in the test, configuration information is only required to be changed in the XML configuration file of the test tool, wherein the XML configuration file is written with the extensible markup language. After the configuration file is changed, the file is saved, and the executable file of the testing tool is clicked. Compared with the prior art that the testing tool only has a single communication protocol and can only be used for testing the programmable logic controller PLC supporting the single communication protocol, the testing tool provided by the application writes various communication protocol scripts in the bottom layer codes and the configuration files, and can switch the communication protocol of the programmable logic controller PLC by simply modifying the configuration files, thereby realizing the communication of various programmable logic controllers PLC.

In one possible implementation manner, the types of the data to be tested include integer type data Int, double precision floating point type data Double and String type data String.

Compared with the prior art, the test tool has the advantages that the data types which can be written into the internal registers of the PLC are single, only the data of Int, double and the like can be written, the data of String types cannot be written, namely, when the non-digital parameters such as ABCD and the like are needed to be written, the data are troublesome, even the writing is not supported, and the writing operation is not simple and convenient.

after an instruction for operating an upper manufacturing execution module interactive button in the main test interface is acquired, switching the main test interface to the upper manufacturing execution module interactive test interface, and displaying preset configuration information in an information list of the upper manufacturing execution module interactive test interface.

A schematic diagram of a top level manufacturing execution module interactive test interface is shown in fig. 16.

Because not all events need TO be replied TO the upper layer manufacturing execution module MES after being reported TO the upper layer manufacturing execution module MES by the equipment automation module EAS, when closed loop events of the PLC TO EAS, EAS TO MES, MES TO EAS, EAS TO PLC need TO be tested, firstly, information of the upper layer manufacturing execution module MES and information of the equipment programmable logic controller PLC are added in a file XML file of the test tool itself written with the extensible markup language, the upper layer manufacturing execution module MES information is set TO be an object, the equipment programmable logic controller PLC information is set TO be an object, and the object may be set TO be a plurality, but the object is only one, service (server) of the object and the object is defined TO be consistent, for example: 11200, which is an interactive port; the networks of the Own and Other subjects are configured to be identical, both are configured to be identical Network segments, for example 225.12.12.12, daemon of the Own and Other subjects are configured to be local addresses, ports are consistent, for example: 127.0.1:7500, which is a background program for receiving information, followed by configuring the Own Subject and the project Name of the Other Subject, and finally configuring the InTargets of the Own Subject as False, the inliter as True, the InTargets of the Other Subject as True, the inliter as False, and storing the configuration file after the configuration.

Clicking an executable file of the test tool, clicking an upper manufacturing execution Module (MES) interaction button, switching to an upper manufacturing execution Module (MES) interaction test interface, displaying configured information in a Subject information list, a first behavior MES information column, and the rest rows are information columns of a corresponding equipment Programmable Logic Controller (PLC), clicking a connection button, and connecting the test tool with a local upper manufacturing execution Module (MES). Then according to the operation in the above embodiment, the to-be-tested data is written into the internal register of the PLC and then triggered by the to-be-tested event, then the device automation module EAS reports the collected to-be-tested data to the upper manufacturing execution module MES in the format of the first information, then the upper manufacturing execution module MES downloads the reply information, that is, the second information, to the device automation module EAS, the device automation module EAS prints the second information to the display field of the received message of the interactive test interface of the upper manufacturing execution module MES for displaying, and after the interface is switched by the PLC button/the PLC button, the corresponding register position is found, the data reading button is clicked, and the data corresponding to the second information of the PLC is read by the device automation module EAS.

When a test engineer needs to report an event to be tested to an upper manufacturing execution module MES manually, inputting data to be tested corresponding to the event to be tested to a transmission information display column of an upper manufacturing execution module MES interactive test interface according to a fixed format, clicking a transmission button, sending the data to be tested to the upper manufacturing execution module MES through an equipment automation module EAS, and if the data to be tested is required to be replied, printing a reply message (data corresponding to second information) on a receiving information display column of the upper manufacturing execution module MES interactive test interface.

In the embodiment of the application, the test tool provided by the embodiment of the application can also send the request information by itself, and after receiving the information replied by the MES of the upper manufacturing execution module, the test tool prints the replied information content in a test interface of the test tool.

The embodiment of the present application further provides a production line automation system 1, referring to fig. 10, the production line automation system 1 includes: a programmable logic controller 11, an equipment automation module 12, an upper layer manufacturing execution module 13, and a test tool 14;

the test tool 14 is configured to write data to be tested corresponding to an event to be tested into the programmable logic controller 11;

The device automation module 12 is configured to store the data to be tested in the programmable logic controller 11 in a buffer of the device automation module, and report first information corresponding to the data to be tested to the upper manufacturing execution module 13;

the upper layer manufacturing execution module 13 is configured to, in response to receiving the first information, download second information to the equipment automation module 12; wherein the second information is information that the upper layer manufacturing execution module 13 replies to the event to be tested;

the device automation module 12 is further configured to, in response to receiving the second information, download data corresponding to the second information to the programmable logic controller 11;

the test tool 14 is further configured to display data corresponding to the second information after acquiring an instruction for reading the data corresponding to the second information.

The specific analysis is the same as above, and will not be described here again.

In the embodiment of the application, when a test tool in the production line automation system is used for testing, first information corresponding to data to be tested can be reported to the upper manufacturing execution module MES, after the equipment automation module EAS downloads second information which is returned by the upper manufacturing execution module MES for an event to be tested to the programmable logic controller PLC, the test tool displays the data corresponding to the second information according to related instructions, namely, the test tool can receive the second information which is returned by the upper manufacturing execution module MES for the event to be tested, so that the test tool can interact with the upper manufacturing execution module MES, the function of reporting the event and the function of downloading the information of the equipment automation module EAS are tested, and the safety of the equipment automation module EAS is ensured.

In one possible embodiment, the test tool 14 is further configured to: displaying a main test interface of the self; wherein the main test interface comprises a programmable logic controller button; after an instruction for operating the programmable logic controller button is acquired, switching the main test interface to a programmable logic controller test interface; after an instruction for inputting an internet protocol address for an address frame of a test interface of the programmable logic controller is acquired, communicating with the programmable logic controller 11 through the internet protocol address; wherein, the internet protocol address is an internet protocol address corresponding to the programmable logic controller 11;

the test tool 14 is specifically configured to:

after acquiring an instruction for inputting a port aiming at a port frame of a test interface of the programmable logic controller, writing data to be tested corresponding to an event to be tested into the programmable logic controller 11 through the port; wherein, the port is an open port of the programmable logic controller 11.

In one possible implementation, when the programmable logic controller 11 is a virtual programmable logic controller, the test tool 14 is specifically configured to: after an instruction for operating a virtual programmable logic controller button in the main test interface is acquired, switching the main test interface to a virtual programmable logic controller test interface; after an instruction for inputting a connection key aiming at a connection key frame of a virtual programmable logic controller test interface is acquired, connecting the virtual programmable logic controller with the connection key, and writing data to be tested corresponding to an event to be tested into the programmable logic controller; wherein the connection key is a virtual transmission control protocol.

Referring to fig. 11, a second structural schematic diagram of the production line automation system according to an embodiment of the present application is shown.

In one possible embodiment, the test tool 14 is further configured to: after writing data to be tested corresponding to an event to be tested into the programmable logic controller 11, writing a first numerical value into a first bit address of the data to be tested; wherein the value in the first bit address indicates whether the data to be tested is reported to the equipment automation module 12 by the programmable logic controller 11;

the device automation module 12 is specifically configured to: scanning the first bit address, and when the value in the first bit address is the first value, reading the data to be tested in the programmable logic controller 11 and storing the data to be tested in a buffer area of the programmable logic controller;

the test tool 14 is also used to: after the data to be tested is reported to the equipment automation module 12 by the programmable logic controller 11, writing a second numerical value into the first bit address; the second value indicates that the data to be tested is successfully reported;

the device automation module 12 is specifically configured to: and after the value in the first bit address is scanned to be the second value, reporting first information corresponding to the data to be tested to the upper manufacturing execution module 13.

In one possible embodiment, the test tool 14 is specifically configured to: after a first instruction for inputting a first bit address of the data to be tested aiming at a bit address input box of a test interface of the programmable logic controller is obtained, a second instruction for inputting a first numerical value aiming at a data display box corresponding to the bit address input box is obtained, and a third instruction for operating a data writing button corresponding to the bit address input box is obtained, the first numerical value is written into the first bit address in response to the first instruction, the second instruction and the third instruction.

In one possible embodiment, referring to fig. 12, the test tool 14 is specifically configured to: writing the data to be tested corresponding to the event to be tested into a register corresponding to a first register address; wherein the first register address is a register address used for storing an event to be tested in the programmable logic controller 11.

In one possible embodiment, the test tool 14 is specifically configured to: after a fourth instruction for inputting a first register address aiming at a register address input box of a programmable logic controller test interface is obtained, a fifth instruction for inputting a word length of data to be tested corresponding to the event to be tested aiming at a data length box of the programmable logic controller test interface is obtained, a sixth instruction for inputting the data to be tested aiming at a data display box corresponding to the register address input box is obtained, a seventh instruction for operating a write data button corresponding to the register address input box is obtained, and after the fourth instruction, the fifth instruction, the sixth instruction and the seventh instruction are responded, the data to be tested are converted into specified data types and written into a register corresponding to the first register address; wherein the specified data type includes: binary, standard code for information exchange ASCII code and virtual storage.

In one possible embodiment, the device automation module 12 is further configured to:

In one possible embodiment, referring to fig. 13, the device automation module 12 is specifically configured to:

After the second information is received, downloading data corresponding to the second information into a register corresponding to a second register address; wherein the second register address is a register address in the programmable logic controller 11 for receiving the second information;

the test tool 14 is specifically configured to: after an instruction for operating the programmable logic controller button is acquired, switching a current interface to the programmable logic controller test interface; after an eighth instruction for inputting the second register address aiming at a register address input box of a programmable logic controller test interface is obtained, a ninth instruction for operating a read data button corresponding to the register address input box is obtained, and then data corresponding to the second information are displayed in a data display box corresponding to the register address input box in response to the eighth instruction and the ninth instruction.

In one possible embodiment, the test tool 14 is further configured to: after the communication protocol switching instruction is acquired, the communication protocol of the communication protocol switching instruction is switched through the change of configuration information in the configuration file written with the extensible markup language so as to adapt to the programmable logic controller 11 with different communication protocols; the communication protocols include a high-speed information communication protocol HSMS (High Speed Message Specification), an information carrying communication protocol MC (Message Carrying Protocol), an open industrial network protocol cc_link (Control & Communication Link, control and communication connection), and an open standard communication protocol OPCUA (Open Platform Communications Unified Architecture).

Compared with the prior art that the testing tool only has a single communication protocol and can only be used for testing the programmable logic controller PLC supporting the single communication protocol, the testing tool provided by the application writes various communication protocol scripts in the bottom layer codes and the configuration files, and can switch the communication protocol of the programmable logic controller PLC by simply modifying the configuration files, thereby realizing the communication of various programmable logic controllers PLC.

In a possible embodiment, before writing the data to be tested corresponding to the event to be tested into the programmable logic controller 11, the test tool 14 is further configured to:

Referring to fig. 14, a fifth structural schematic diagram of a production line automation system according to an embodiment of the present application is provided. When a test engineer needs to report an event to be tested to an upper manufacturing execution module MES manually, inputting data to be tested corresponding to the event to be tested to a transmission information display column of an upper manufacturing execution module MES interactive test interface according to a fixed format, clicking a transmission button, sending the data to be tested to the upper manufacturing execution module MES through an equipment automation module EAS, and if the data to be tested is required to be replied, printing a reply message (data corresponding to second information) on a receiving information display column of the upper manufacturing execution module MES interactive test interface.

In a possible implementation manner, the embodiment of the application also provides a testing tool, wherein a main testing interface of the testing tool comprises an entity Programmable Logic Controller (PLC) button 40, a virtual Programmable Logic Controller (PLC) button 2 and an upper manufacturing execution Module (MES) interaction button 3;

referring to fig. 1b, the entity programmable logic controller PLC test interface 6 includes: a PLC address frame 8, a port frame 4, a data type selection field 5, a control button 7, a connection button 9, a disconnection button 10, a Bit address input frame 11, a register address input frame 12, a uint16 digital type W area address 13, an int16 digital type W area address 14, a uint32 digital type W area address 15, an int32 digital type W area address 16, a write data button 17, a read data button 18, a data length frame 19 and a data display frame 20, wherein the PLC address frame 8 is used for inputting an IP address of an entity PLC to be connected, the port frame is used for inputting an open port number of the entity PLC, the data type selection field 5 is provided with three options, each option corresponds to one data type, and has three types of ASCII, binary and Virtual Storage, the connection button 9 can realize communication connection between a test tool and an entity PLC, the disconnection button 10 is disconnected, the Bit address input box 11, the register address input box 12, the uint16 digital type W area address 13, the int16 digital type W area address 14, the uint32 digital type W area address 15 and the int32 digital type W area address 16 are sequentially arranged from top to bottom and are all hexadecimal data types, the data display box 20 is provided with six groups for writing and reading real-time data, the data writing button 17 and the data reading button 18 are respectively provided with six groups for reading and writing Bit values and various types of data in the W area, and the data length box 19 is arranged on the right side of the register address input box 12 and is used for selecting the length of input data characters;

Referring to fig. 15, the PLC test interface 21 includes a PLC connection key frame 22, in which information keys such as an address, a port, a data conversion type, etc. for connecting the PLC are input into the PLC connection key frame 22, and other settings of the PLC test interface 21 are consistent with those of the PLC test interface;

referring to fig. 16, the upper manufacturing execution module MES interactive test interface 23 includes: a Subject information list 24, a received message display field 25, a send message display field 26, a send button 27, a request button 28, an equipment PLC information field 31, and an MES information field 32, the Subject information list 24 having a set of MES information fields 32 of a first row and a number of rows of equipment PLC information fields 31 below, the Subject information list 24 being provided with: subjectType, service, network, daemon, subjectName, inTargets, inListener, and the right side of the Subject information list 24 is provided with a slider, and the Subject information list 24 is also provided with a connect button 9 and a disconnect button 10.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A test method, characterized by being applied to a test tool in a production line automation system, the production line automation system further comprising a programmable logic controller, an equipment automation module and an upper layer manufacturing execution module, the method comprising:

2. The method according to claim 1, wherein writing the data to be tested corresponding to the event to be tested into the programmable logic controller includes:

3. The method of claim 1, wherein when the programmable logic controller is a virtual programmable logic controller, the switching the main test interface to a programmable logic controller test interface after acquiring an instruction for operating the programmable logic controller button comprises:

4. The method of claim 2, wherein after writing the data to be tested corresponding to the event to be tested into the programmable logic controller, the method further comprises:

5. The method of claim 4, wherein writing the first value to the first bit address of the data to be tested comprises:

6. The method of claim 5, wherein writing data to be tested corresponding to an event to be tested into the programmable logic controller through the port comprises:

7. The method of claim 6, wherein writing the data to be tested corresponding to the event to be tested into the register corresponding to the first register address via the port comprises:

8. The method of claim 7, wherein writing a second value to the first bit address after the data to be tested is reported by the programmable logic controller to the device automation module comprises:

9. The method of claim 8, wherein the device automation module is configured to generate a log for the value change in the first bit address, the value change in the second bit address, and the data to be tested.

10. The method of claim 9, wherein the displaying the data corresponding to the second information through the register address input box, the second data display box, and the second read data button after the instruction for reading the data corresponding to the second information is acquired, comprises:

11. The method according to claim 10, wherein the method further comprises:

12. The method of claim 11, wherein the types of data to be tested include integer-type data, double-precision floating-point-type data, and string-type data.

13. The method of claim 12, wherein prior to writing the data to be tested corresponding to the event to be tested into the programmable logic controller, the method further comprises:

14. A production line automation system, the system comprising: