Siemens 6ES7138-4FC01-0AB0 is a PROFIsafe safety module for SIMATIC S7 ET 200S distributed I/O stations that supplies eight safe digital inputs at 24 V DC and three safe digital outputs rated 24 V DC / 2 A. It supports the PROFIsafe protocol over PROFIBUS or PROFINET to meet functional safety requirements up to SIL 3 / Category 4 / PLe for machine guarding, emergency-stop circuits, and safe position monitoring. The module mounts with the matching 6ES7193-4CG20-0AA0 terminal block and integrates directly into existing S7-300 or S7-400 safety configurations without additional gateways.
