Overview
The Siemens 6ES7131-4BD00-0AA0 is a digital input module designed for the ET 200S distributed I/O system. It offers four standard 24 VDC digital inputs with a compact 15 mm width, making it ideal for space-constrained industrial automation applications. This module supports typical sensor inputs including pushbuttons, proximity switches, and limit switches.
Key Features
- 4-point digital input module with 24 VDC configuration
- Compact 15 mm width for minimal footprint integration
- Direct integration into ET 200S distributed I/O racks
- Supports standard industrial sensor inputs and discrete logic signals
- Reliable acquisition from DC 24 V sensor devices
Technical Specifications
- Input Voltage: 24 VDC (permissible range 20.4–28.8 VDC)
- Digital Inputs: 4 channels
- Input Type: Standard (ST)
- Input Current: 7 mA per channel (typical)
- Output Current: 500 mA (backplane supply)
- Module Width: 15 mm
- Module Height: 81 mm
- Module Depth: 52 mm
- Operating Temperature: 0–60°C
- Protection Rating: IP20
- Series: ET 200S SIMATIC
- Weight: 0.40 lbs
Typical Applications
The Siemens 6ES7131-4BD00-0AA0 is commonly used for:
- Retrofit or expansion of existing Siemens S7 and ET 200S installations
- Discrete sensor input acquisition in distributed control architectures
- Industrial manufacturing process automation requiring minimal module footprint
- Motion control and machine safety applications with centralized programming
- Integration into larger ET 200S racks for modular system scalability
Compatibility & Replacements
Compatible With
- Siemens ET 200S distributed I/O system
- Siemens S7 PLC controllers (SIMATIC series)
- PROFIBUS DP communication via ET 200S gateway
- TIA Portal engineering environment (via ET 200S integration)
Replaces / Drop-In Replacement For
- Earlier versions of 4-channel 24 VDC input modules in ET 200S racks
- Predecessor module in ET 200S 4DI standard configurations
Works With
- Siemens TIA Portal and STEP 7 programming environments
- ET 200S I/O coupling and terminal modules
- PROFIBUS DP distributed I/O networks
- Siemens SIMATIC automation platforms
