- Evaluates four safe 24 VDC digital inputs
- Provides four pulse outputs for sensor-line diagnostics
- Supports safety functions up to SIL 3 or Category 4 / PL e
X20SI4100 is a B&R 4-channel safe digital input module designed for the X20 System.
The module evaluates safety sensors and switches in a SafeLOGIC architecture while the pulse outputs support cross-circuit and line diagnostics.
Before installation or replacement, verify the complete material number, the required safety integrity level, input architecture, sensor type, test-pulse wiring, discrepancy and filter settings, hardware revision, X20TB52, X20BM33 or X20BM36, safety project, and validation record.
Availability, condition, price, and shipping time for X20SI4100 are confirmed during quotation.
B&R X20SI4100 4-channel Safe Digital Input Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Input architecture must match the documented safety function
- Pulse outputs can be assigned to detect wiring faults
- Shielding and maximum line length depend on the installation
- Filter and diagnostic settings are part of the validated safety application
- Hardware revision differences must be checked before replacement
- The safety project and checksum should be backed up before exchange
- X20TB52 and a safety-keyed bus module are mandatory
- Every safety channel must be function-tested after wiring changes
- Validation records should include fault insertion and restart behavior
- Emergency-stop and guard-switch input evaluation
- Dual-channel safety sensor monitoring with pulse diagnostics
- Machine safety functions requiring SIL 3 or Category 4 / PL e input processing