Modbus TCP Master (Client) Implementation in Python - Write Data To Modbus Slave

[@fawwazyusri2985]

Hi, thanks for the video. I'm able to read and write values of the register. However, the values immediately return to 0 after I send some values to the register. Do you know what would be the problem? I'm using Python3 Idle and codesys V3

[@brightersidehacks]

This depend on the slave register configurations. If the registers are not set to retain values, you must use cyclic communication. Basically you need to keep sending values to these registers every few miliseconds

[@Itachi-wg9mf]

how to read multiple slave?

[@brightersidehacks]

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