Siemens 6ES7142-4BF00-0AA0 SIMATIC ET 200pro EM 8DO 24V DC 0.5A Remote I/O Module

The Siemens 6ES7142-4BF00-0AA0 is a SIMATIC ET 200pro digital output module providing 8 channels rated 0.5 A at 24 V DC, each short-circuit protected and current-sourcing per IEC 61131 type 0.5. Suitable for safety-related tripping of standard modules up to Performance Level d (Category 3, ISO 13849-1) and SIL 2 (IEC 62061), the outputs switch resistive loads at up to 100 Hz.

Technical Specifications

Certifications & Standards

• ISO 13849-1 PL d
• IEC 62061 SIL 2

Selection Notes

The 0.5 A per-channel rating and current-sourcing output stage suit small DC loads such as indicator lamps and pilot relay coils rather than motor contactors; two outputs can be paralleled for redundant control of a single load. Because the module is suitable for safety-related tripping of standard modules to PL d / SIL 2, a fail-safe CPU can switch a standard (non-F) actuator through this channel without a dedicated F-DQ module, provided the rest of the safety chain meets the same category. The module still needs its own bus module and I/O connection module, ordered separately.

Applications

Actuator and indicator control in distributed SIMATIC ET 200pro stations - pilot lamps, small relays, and solenoids on 24 V DC machine and process lines, including outputs that must trip from a safety PLC's standard channel.