YJKP with Mitsubishi Q series PLC control via Modbus TCP

Transcription

1 Application Note YJKP with Mitsubishi Q series PLC control via Modbus TCP This type of document describes the settings of Modbus TCP communication between Mitsubishi Q series PLC and YJKP. YJKP

2 Title... YJKP with Mitsubishi Q series PLC control via Modbus TCP Version Document no Original...en Author... Festo Last saved Copyright Notice This documentation is the intellectual property of Festo AG & Co. KG, which also has the exclusive copyright. Any modification of the content, duplication or reprinting of this documentation as well as distribution to third parties can only be made with the express consent of Festo AG & Co. KG. Festo AG & Co KG reserves the right to make modifications to this document in whole or in part. All brand and product names are trademarks or registered trademarks of their respective owners. Legal Notice Hardware, software, operating systems and drivers may only be used for the applications described and only in conjunction with components recommended by Festo AG & Co. KG. Festo AG & Co. KG does not accept any liability for damages arising from the use of any incorrect or incomplete information contained in this documentation or any information missing therefrom. Defects resulting from the improper handling of devices and modules are excluded from the warranty. The data and information specified in this document should not be used for the implementation of safety functions relating to the protection of personnel and machinery. No liability is accepted for claims for damages arising from a failure or functional defect. In other respects, the regulations with regard to liability from the terms and conditions of delivery, payment and use of software of Festo AG & Co. KG, which can be found at and can be supplied on request, shall apply. All data contained in this document do not represent guaranteed specifications, particularly with regard to functionality, condition or quality, in the legal sense. The information in this document serves only as basic information for the implementation of a specific, hypothetical application and is in no way intended as a substitute for the operating instructions of the respective manufacturers and the design and testing of the respective application by the user. The operating instructions for Festo products can be found at Users of this document (application note) must verify that all functions described here also work correctly in the application. By reading this document and adhering to the specifications contained therein, users are also solely responsible for their own application. (Festo AG & CO. KG, D Esslingen, 2017) Internet: service_international@festo.com

3 Table of contents 1 Components/Software used Attachment Introduction Application description System configuration Software settings Configuration of YJKP Configuration of Mitsubishi PLC... 8

4 Table of contents

5 Components/Software used 1 Components/Software used Type/Name Version Software/Firmware Date of manufacture Servo Press Kit YJKP PLC FW: 3.4.6; GSAY: 1.2.0; CMMP FW: Mitsubishi PLC Q series CPU: Q02CPU Version B -- Modbus TCP Module: QJ71MT91 Version D -- GX Works 2 Version 1.77F -- Table 1.1: Components/Software used Attachment Project YJKP Modbus TCP.gxw Project Type Mitsubishi PLC project Table 1.2: Attachment Application Note YJKP with Mitsubishi Q series PLC control via Modbus TCP 1.10 Seite 5 von 12

6 Introduction 2 Introduction 2.1 Application description This documentation describes Modbus TCP connection and configuration of a Mitsubishi Q series PLC with the servo press kit YJKP. It is targeted at people who have been already familiar with the protocol. Modbus is a serial communication protocol originally published by Modicon (now Schneider Electric) in 1979 for use with its programmable logic controllers (PLCs). Simple and robust, it has since become a de facto standard communication protocol and is now a commonly available means of connecting industrial electronic devices. Modbus TCP is a Modbus variant used for communications over TCP/IP networks, connecting over port 502. YJKP, the servo press kit supports the Modbus TCP protocol. And Mitsubishi offers a Modbus TCP module as well. So we can use this module to control YJKP. 2.2 System configuration 1. Hardware of the system Fig. 2.1 System hardware As Fig.2.1 shows above, the system consists of a Mitsubishi Q series PLC with Modbus TCP module QJ71MT91, a gateway and a servo press kit YJKP. The QJ71MT91 supports the master function of MODBUSR /TCP communication, which is an open network system for factory automation, and it is compatible with various MODBUSR /TCP slave devices (hereafter abbreviated to the slaves) of other manufactures. 2. Software of the system - Mitsubishi Software Currently there are two software for Mitsubishi Q series PLC: GX Works 2 and GX-Developer. Here only GX Works 2 settings will be introduced. For more information regarding GX-Developer, please refer to the following link: - Festo Software The YJKP introduced here is using the EVO2 (GSAY-A4-F0-Z ) software package. Users can refer to support portal for the configuration package. Seite 6 von 12 Application Note YJKP with Mitsubishi Q series PLC control via Modbus TCP 1.10

7 Software settings 3 Software settings 3.1 Configuration of YJKP 1. Use Festo Device Tool (FFT) to scan the YJKP. Confirm the firmware version of the system and update them if needed. Fig. 3.1 FFT scan result 2. Open web browser and enter the IP address of YJKP ( ). Confirm the GSAY version via web browser. Update it via FFT if needed. Set the control highness as Host and select Modbus TCP as fieldbus used. Click Save to store the settings you modified. Fig. 3.2 YJKP System settings 3. Create new program per customer s requirement. Application Note YJKP with Mitsubishi Q series PLC control via Modbus TCP 1.10 Seite 7 von 12

8 Software settings 3.2 Configuration of Mitsubishi PLC 1. Create a new project - Open GX Works 2 and create a new project. Select Simple project as project type. - Select the right PLC type matches the hardware. - Select the programming language. Fig. 3.3 Create new PLC project 2. Create the Modbus TCP module - Insert the new module. Right click intelligent function module and choose New module. Fig. 3.4 Create new module - Choose MODBUS(R) Interface Module as module type. Choose QJ71MT91 as module name. Fig. 3.5 Module config - Since the Modbus TCP module QJ71MT91 is mounted next to CPU, the mounted slot number can be set as 0. Users can modify according to the used PLC config. - Confirmed with OK, the module will be successfully created. Seite 8 von 12 Application Note YJKP with Mitsubishi Q series PLC control via Modbus TCP 1.10

9 Software settings 3. Settings of the Modbus TCP module Since this module can be set as Modbus TCP server and client at the same time, we would like to only use it as client. So only the highlighted part shown below will be need. Fig. 3.6 Module setting menus 4. Switch setting - Set the QJ71MT91 IP address, ensuring it is within the same network of YJKP. - Set the highlighted parameters as User Setting Parameter. - Disable the online change. Fig. 3.7 Switch setting 5. Basic parameter - Confirm the local and target port number is 502, if not, change to 502. Fig. 3.8 Basic parameter Application Note YJKP with Mitsubishi Q series PLC control via Modbus TCP 1.10 Seite 9 von 12

10 Software settings 6. Automatic communication parameter The automatic communication parameter in GX Works 2 are like the communication channels in Codesys Modbus TCP settings. As the same we do in Codesys, we are going to add two communication parameters for YJKP. One is Read Input Registers (Function Code 4) with a length of 52 (104 Bytes), the other is Write Multiple Registers (Function Code 16) with a length of 52 (104 Bytes). The type specification of the target MODBUS device represents for the function code we use for Modbus TCP. Please refer to the following table for its value and corresponding function codes. Set Value Target Issued Function Code 0100H Read coil 01 Read coils 0200H Read input 02 Read discrete inputs 0400H Read input device 04 Read input registers 0500H Read holding register 03 Read holding registers 0001H Write coil 15 Write multiple coils 0005H Write holding register 16 Write multiple registers 0505H Read/Write holding register 23 Read/Write multiple registers Table 3.1 type specification of the target MODBUS device value and function codes - Set the Target station IP address as that of YJKP - Set the repetition interval time value as the cycle time. 10 means 100ms. - Set the type specification of the target MODBUS device as the function code you need for YJKP. 0400h represents for FC4, reading input registers. 0005h represents for FC16, writing multiple registers. - Set the head buffer memory address as 1000h for FC4 and 3000h for FC16. - Set the access points as 52, data length in WORD. - Confirmed with OK, the module will be successfully set. Fig. 3.9 Automatic communication parameter Seite 10 von 12 Application Note YJKP with Mitsubishi Q series PLC control via Modbus TCP 1.10

11 Software settings 7. Auto Refresh In Codesys, the Modbus I/O mapping is automatically set after the channels are added. Here in GX Works 2, we need to define the mapping manually. - Set W device for read and write, depending on different application. We can also set D or other device here. - Set the start address and data length(word) as 52 here. Fig Auto_Refresh I set the mapping start address as 0 and 100. It can be defined according to your program. The settings above means: W0(0,52): W0-W51(52 Words Input) W100(0,52): W0-W51(52 Words Output) 8. Connection Check After downloading the project to the PLC, we can check if the Modbus TCP connection is established or not via the following steps. - In Auto_Refresh, we set the W0 as the start address of input. So we can read the status here as the Fig shows. Fig Read YJKP status Application Note YJKP with Mitsubishi Q series PLC control via Modbus TCP 1.10 Seite 11 von 12

12 Software settings - Then we can switch to W100 to write commands to YJKP as Fig shows. Fig Write YJKP commands - Switch back to W0 to check if the status of YJKP is changed according to the commands you set. Fig YJKP status changed. As shown above, the status is changed according to the commands sent to YJKP. And this means the Modbus TCP communication is established successf Seite 12 von 12 Application Note YJKP with Mitsubishi Q series PLC control via Modbus TCP 1.10