Modbus Master Command Framing Error

What does I xx .Command yy .FramingError mean?

This boolean tag indicates that a framing error occurred during the reception of a response for a specific Modbus master command (Command yy). A value of 1 (Occurrence) means the received data did not conform to the expected Modbus frame structure. This often points to baud rate or data format mismatches between the master and slave.

• Incorrect baud rate setting on the module or Modbus slave device
• Incorrect data bits or stop bits configuration between master and slave
• Severe noise on the serial communication line causing frame corruption

Click steps to track your progress.

1. 1

   Verify the baud rate, data bits, and stop bits in the module's configuration match the Modbus slave device's settings.

2. 2

   Inspect the serial communication cable for physical damage, proper shielding, and correct termination.

3. 3

   Check for sources of electromagnetic interference (EMI) that could corrupt the data frame and implement mitigation measures.