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Safety-Oriented Input Module for Distributed I/O Systems
The Siemens 6ES7148-3FA00-0XB0 electronic module provides failsafe digital inputs for the ET 200ECO distributed I/O system. This module connects safety-related sensors like emergency stops, light curtains, and door switches. It achieves SIL 3 per IEC 61508, Category 4 per EN 954-1, and PL e per ISO 13849 . Furthermore, the module supports PROFIsafe communication over PROFIBUS DP at up to 12 Mbit/s . It features a compact, robust housing for direct field installation. Consequently, it is ideal for safety-critical applications in harsh environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Type | Failsafe Digital Input Module |
| Part Number | 6ES7148-3FA00-0XB0 |
| System | SIMATIC ET 200ECO |
| Number of Inputs | 4 or 8 (configurable) |
| Safety Integrity Level | SIL 3 (IEC 61508) |
| Performance Level | PL e (ISO 13849) |
| Category | Category 4 (EN 954-1) |
| Input Voltage | 24 V DC |
| Typical Input Current | 3.7 mA (for signal “1”) |
| Communication | PROFIBUS DP (up to 12 Mbit/s) |
| Power Loss (typ.) | 3 W |
| Dimensions (W x H x D) | 60 x 210 x 28 mm |
| Weight | Approx. 0.22 kg (0.25 kg including packaging) |
| Cable Length (unshielded, max.) | 30 m |
| Operating Temperature | 0°C to +55°C |
| Certification | SIL 3, PL e, Cat. 4, RoHS compliant |
Robust Design and Diagnostic Capabilities
The Siemens 6ES7148-3FA00-0XB0 offers comprehensive diagnostic features for reliable operation. Built-in LEDs display the status of each input channel and any group errors . The module provides short-circuit protection on its outputs . It supports up to 8 simultaneously controllable inputs with a typical current draw of 3.7 mA . Moreover, the module features galvanic isolation between the PROFIBUS DP interface and all other circuits . This robust design minimizes the risk of unplanned downtime.
System Integration and Application Versatility
The Siemens 6ES7148-3FA00-0XB0 seamlessly integrates into ET 200ECO stations via PROFIBUS DP. It is suitable for emergency stop circuits, safety door monitoring, and light curtain applications. The module directly supports up to 8 safety sensors. Consequently, this module is a reliable choice for failsafe digital input applications.