Allen-Bradley · Compact 5000 I/O Serial Module
This boolean tag indicates that the channel data for the Modbus master is inaccurate and cannot be trusted for use in the application. When set to 1 (Bad), it signifies an active fault condition within the module or its communication. The tag automatically resets to 0 (Good) once the underlying condition causing the inaccuracy is resolved.
Click steps to track your progress.
Troubleshoot the module to identify the specific cause of data inaccuracy affecting the Modbus master channel.
Inspect all physical serial communication cable connections at the module and Modbus slave device terminals for proper seating.
Cycle power to the module to attempt clearing any transient internal faults.