Joshua Gicheru

Modbus RTU communication

2 posts in this topic

Hi, I am using CJ2M-CPU31, and SCU32. I am new to serial communication field especially modbus. I need to read data from a weighing module that uses Modbus RS485. What instructions should I use on the ladder logic to Read the data, or if I am supposed to create a function block, what should I include in the FB? I will appreciate your assistance.

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