Open ext-frha opened 4 months ago
According to the Modbus Application Protocol V1.1b3, function code 23 (read write multiple registers) should first perform the write operation before the read operation. Additionally, the maximum quantity to write should be 121.
According to the Modbus Application Protocol V1.1b3, function code 23 (read write multiple registers) should first perform the write operation before the read operation. Additionally, the maximum quantity to write should be 121.