Modbus Poll Bytes Missing Error Fixed -

To fix the error, identify your trigger from this list:

Assume you are reading 2 holding registers (4 bytes of data) starting at address 40001 (Function Code 03). 01 (Slave ID) 03 (Function Code - Read Holding Registers) 00 00 (Starting Address) 00 02 (Quantity of Registers) C4 0B (CRC Checksum) The Expected Response Frame (from Slave): 01 (Slave ID) 03 (Function Code) 04 (Byte count - 4 bytes of data for 2 registers) 00 00 00 0A (The actual data, e.g., the number 10) XX XX (CRC Checksum) modbus poll bytes missing error fixed

Physical layer degradation alters the electrical signals, cutting off the end of data packets. Inspect the Physical Layer To fix the error, identify your trigger from