SIEMENS 6ES7131-4BD01-
The Siemens 6ES7131-4BD01-0AA0 is a 4-channel digital input module belonging to the SIMATIC ET 200S distributed I/O system. This standard (ST) expansion module records binary signals from the field level (such as sensors, switches, and buttons) and transmits them to the central automation system via an ET 200S interface module. It features a compact 15mm width, plug-and-play installation on terminal modules, and front-facing LED indicators for easy channel diagnostics and maintenance.
| Specifications | |
| Product Make | Siemens |
| Product Type Designation | 4DI DC24V ST |
| THardware Functional State | From FS02 onwards |
| Firmware Version | V1.0 |
| Vendor Identification (vendorID) | 0x002A |
| Rated Value (DC) | 24 V DC |
| Permissible Range | 20.4 V to 28.8 V DC |
| Reverse Polarity Protection | Yes |
| Current Consumption | Maximum 10 mA (from backplane bus) |
| Power Loss | Typically 0.7 W |
| Condition | GOOD |
| Warranty | 3 Months |
| Country of Origin | Germany |
| Protection Degree | IP20 |
| Length | 52 mm |
| Width | 15 mm |
| Height | 81 mm |
| Weight | 35g |








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