emelianov / modbus-esp8266

Most complete Modbus library for Arduino. A library that allows your Arduino board to communicate via Modbus protocol, acting as a master, slave or both. Supports network transport (Modbus TCP) and Serial line/RS-485 (Modbus RTU). Supports Modbus TCP Security for ESP8266/ESP32.

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I am facing Read and Write issue in register

testgithubesp opened this issue · comments

In case of reading holding registers (using RTU >> MasterSync code) the request-response we get the same for all register address i.e, 0xE4112. And please suggest which library code is used for write data to the registers. The same example code i have modified and same is attached to the mail for your reference.

masterSync.zip

0xE4 -- it's timeout error that typically caused by wiring errors