Siemens 6ES7142-4BF00-0AA0 Digital Output Module

Siemens 6ES7142-4BF00-0AA0 is an 8-channel digital output module for the SIMATIC ET 200 PRO distributed I/O system, delivering eight 24 V DC outputs with a per-channel rating of 0.5 A. It is designed to switch low-power DC loads such as relays, solenoids, and small actuators in automation cabinets, with built-in module diagnostics to monitor output health and fault conditions. The unit operates on a 24 V DC supply and includes the bus module; the connection module 6ES7194-4..00-0AA0 must be ordered separately to complete an ET 200 PRO channel group. This variant is documented for IEC 61131 applications and is referenced in Siemens technical materials as an 8 DO DC 24 V 0.5 A digital output module for ET 200 PRO. In a typical ET 200 PRO rack, it serves as a compact I/O block that communicates within the DP/ET 200 PRO hardware family, enabling scalable control of multiple actuators from a central PLC. The 0.5 A per output rating and 24 V DC operation support discrete control tasks in conveyor, packaging, and machine automation environments where reliability and diagnosability are important.