The Siemens 6ES7123-1GB60-0AB0 is a failsafe digital input/output module belonging to the SIMATIC S7-1200 family. This compact safety module offers 8 failsafe inputs and 8 failsafe outputs (8DI/8DO) with a nominal voltage of 24V DC. It is certified for Safety Integrity Level SIL 3 per IEC 61508 and Performance Level PL e according to ISO 13849-1, enabling the implementation of emergency stop circuits, safety gates, light curtains, and two-hand control systems directly within the standard automation architecture.
Key Features
8 failsafe digital inputs (type 3 acc. to IEC 61131-2)
8 failsafe digital outputs (0.5A per channel, protected)
Integrated test pulse generation for sensor monitoring
Short-circuit and overload protection
Supports PROFIsafe profile via PROFINET
Safety Certifications
SIL 3 (IEC 61508, IEC 62061)
PL e (ISO 13849-1)
EN 50156 for furnaces (optional)
Up to ISO 13849-1 category 4
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 6ES7123-1GB60-0AB0 |
| Module Type | Failsafe digital I/O (F-DI 8x24VDC / F-DO 8x24VDC) |
| Input Current | 2.5 mA per channel |
| Output Current | 0.5 A per channel (resistive load) |
| Response Time | Programmable, min. 4 ms |
| Supply Voltage | 24V DC (20.4 – 28.8V DC) |
| Dimensions (WxHxD) | 45 x 100 x 75 mm |
Applications
This module is essential for machine tools, packaging machinery, robotics cells, and conveyor systems requiring safety-rated stop and monitoring functions. It works seamlessly with TIA Portal engineering framework and supports integrated safety engineering without additional programming hardware.
