Overview of MODBUS TCP Communication with S7-1200 Integrated PN Interface Modbus TCP is a standard network communication protocol that communicates via TCP/IP through the PN interface on the CPU, eliminating the need for additional communication hardware modules. Modbus TCP uses open user communication connections as the communication path, supporting a maximum of 8 hybrid client … Read more
Search on WeChat Technical Training MODBUS Communication Between S7-1200 and V20 For MODBUS communication between S7-1200 and V20, the S7-1200 PLC needs to add a CM1241 RS485 communication module. 01 Communication Connection The V20 inverter is connected to the PLC via RS485 cable, using the standard MODBUS communication protocol. Through MODBUS communication, the PLC sends … Read more
Click the ” Jicheng Training ” above, select “Pin Public Account“ 150,000+ industrial control professionals are following this WeChat platform: technical sharing, learning exchange, industrial control videos (1) Modbus Communication Modbus communication of S7-200: S7-200 only supports the Modbus RTU protocol and does not support the Modbus ASCII protocol; Modbus is a master/slave communication mode … Read more
S7-1500 MODBUS Communication MODBUS MASTER: First configure the hardware, as shown below: Then open OB1, and program, as shown below: First call the initialized block MODBUS COMMONLOAD Pin description: REQ: The command starts on the rising edge (0 to 1). PORT: After installing and configuring the CM, you can find the CM port value in … Read more
S7-1200 MODBUS TCP Communication Multi-Request Handling Rules to be followed for individual client connections: 1. Each “MB_CLIENT” connection needs to use a different background data block; 2. Each “MB_CLIENT” connection must specify a server IP address; 3. Each “MB_CLIENT” connection must specify a unique connection ID; 4. Whether a unique IP port number is required … Read more
Search on WeChat Technical Training 1 System Configuration Description (1) PLC:S7-1200. (2) Gateway:Modbus RTU to Profinet Gateway XJ-PN5001. (3) Weighing Instrument:XH3180-K. 2 Configuration and Debugging Steps (1) Open the software to create a new project “Weighing Instrument”. Go to Devices and Networks, select Manage General Station Description Files in the options, and install the GSD … Read more
Click on the above “Jicheng Training“, select “Pin to Top Public Account” 120,000+ industrial control professionals follow this WeChat platform: Technical sharing, learning exchange, industrial control videos Today, I will share some knowledge about MODBUS communication, using a touch screen to monitor inverters or instruments directly without going through a PLC: here we will take … Read more
1 A weighing instrument that supports the Modbus protocol A weighing instrument that supports the Modbus protocol 2 Set the communication parameters of the instrument You can adjust according to your requirements, as long as it matches with the PLC side Baud rate: 9600 Data format: 8n1: 8 data bits/no parity bit Communication method: Modbus … Read more
10.25-29 Chongqing Suzhou No Tin Siemens S7-1200/1500 PLC TIA Technology Practical Class Enrollment Open Modbus RTU Communication Discussion on Modbus RTU Communication In modern highly integrated industries, communication between PLCs is frequently used. Common communication protocols include Modbus, Profibus DP, Profinet, CANOPEN, etc. Today, we will explain how two PLCs communicate using Modbus RTU on … Read more
MODBUS is a very common communication method, widely used in frequency converters, servos, instruments, and PLCs due to its free nature. Typically, PLCs act as the master station to read data from slave stations. However, the differences among various PLCs can make MODBUS programming quite complex, which can be confusing for beginners. Japanese PLCs usually … Read more