Schneider Electric CFF

Brand: Schneider ElectricModel: PLC (Modicon M221 / M241 / M262)Error code: CFF

What the Fault Means

Configuration Fault (corrupted parameters)

Likely causes

  • Parameter memory corrupted; firmware mismatch after update

Solution and Safe First Checks

  1. Restore factory defaults; re-enter parameters; re-flash firmware if needed

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

Related Schneider Electric error codes

Source: the Zeror.ai industrial fault database and Schneider Electric technical documentation. This page is for information; on critical systems follow the manufacturer's manual and authorised service.