Modbus Slave Channel Data Fault

What does I x .Slave.Fault mean?

This boolean tag indicates that the channel data for the Modbus slave is inaccurate and should not be trusted for use in the application. A value of 1 (Bad) signifies an active fault condition originating from the slave's operation or data processing. The tag automatically resets to 0 (Good) once the condition causing inaccuracy is removed.

• Internal fault within the Modbus slave module affecting data integrity
• Corrupted data being processed by the slave due to external interference or source
• Misconfiguration of Modbus slave parameters leading to incorrect data handling

Click steps to track your progress.

1. 1

   Troubleshoot the Modbus slave module to identify and correct the underlying cause of data inaccuracy.

2. 2

   Cycle power to the module to attempt clearing any transient internal faults affecting the slave channel.

3. 3

   Review the module's diagnostic information in the Logix Designer application for specific error indicators related to slave operation.