Industrial Communication | Siemens | 6ES7 138-4DF01-0AB0 6ES7138-4DF01-0AB0 PM-E Power Modules for ET200S

Product Description: 6ES7138-4DF01-0AB0

The 6ES7138-4DF01-0AB0 is a failsafe digital input module for the SIMATIC ET 200S distributed I/O system, designed for safety-related automation up to SIL 3 (IEC 61508) and PL e (EN ISO 13849-1). It provides eight isolated 24 V DC inputs with integrated channel diagnostics (short- circuit, wire-break, overvoltage) and supports PROFIsafe communication via an ET 200S interface module. In conjunction with a fail-safe CPU, it monitors safety devices such as emergency-stop switches, light curtains, and door interlocks, enabling rapid fault detection and safe shutdown when required.

Key Features

• Eight galvanically isolated digital inputs, 24 V DC, 2 mA
• Safety certification: SIL 3, PL e, Cat. 4
• Per-channel diagnostics: short-circuit, wire-break, overvoltage
• PROFIsafe via PROFIBUS/PROFINET (with IM 151-F interface)
• Hot-swappable in a redundant or safety-rated ET 200S station
• Status LEDs for each channel and module health

Technical Specifications

• Number of Inputs: 8
• Input Voltage: 24 V DC ± 20 %
• Input Current: 2 mA
• Isolation: 500 V DC channel-to-bus
• Diagnostic Functions: Short-circuit, wire-break, overvoltage
• Safety Standards: SIL 3, PL e, Cat. 4
• Communication: PROFIsafe over PROFIBUS/PROFINET (via IM)
• Mounting: DIN-rail via ET 200S BaseUnit
• Module Width: 15 mm
• Operating Temperature: 0 °C … + 60 °C
• Protection Class: IP20 (cabinet installation)
• Weight: ≈ 90 g

Application Areas

• Monitoring emergency-stop circuits, safety interlocks, light curtains, safety mats
• Integration into fail-safe distributed I/O for machine and plant safety
• Systems requiring on-the-fly module replacement and continuous safety diagnostics

Advantages

• Certified for highest safety integrity with integrated channel diagnostics
• Seamless integration into PROFIsafe networks for transparent safety communication
• Compact, hot-swap design minimizes downtime during maintenance
• Unified engineering and diagnostics in TIA Portal alongside standard ET 200S modules