Modbus Slave Framing Error

What does I x .Slave.FramingError mean?

This boolean tag indicates that a framing error occurred during data reception by the Modbus slave module. A value of 1 (Occurrence) means the received data did not conform to the expected Modbus frame structure. This often points to baud rate, data bits, or stop bits mismatches between the master and slave, leading to communication failure.

• Incorrect baud rate, data bits, or stop bits setting on the Modbus master or Modbus slave module
• Severe noise on the serial communication line causing corruption of the data frame structure
• Incorrect wiring of the serial cable that interferes with framing

Click steps to track your progress.

1. 1

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