- Acquires 32 safety-related digital inputs in groups of eight
- Uses triplicated input processing with continuous online diagnostics
- Supports nominal 24 VAC/VDC field signals with point isolation
3503E is a self-testing TMR digital input module with 32 points commoned in groups of eight for nominal 24 VAC/VDC field signals.
Three independent input channels condition and process the field states, while continuous diagnostics and per-point indication support high-integrity safety input acquisition.
Before installation or replacement, verify the field voltage, common grouping, external termination panel and cable, intrinsic-safety barrier type, input transition behavior, chassis compatibility and approved safety-loop test procedure.
Availability, condition, price, and shipping time for 3503E are confirmed during quotation.
Triconex 3503E 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.
- The 32 points are commoned in groups of eight
- Field signals must remain within the documented thresholds and maximum voltage
- The associated external termination hardware and cable must match the module
- The module includes self-test capability for stuck-ON detection
- Point-state indicators support local loop checks
- PASS, FAULT and ACTIVE indicators report module status
- Confirm field commons and polarity before insertion
- Test each safety input through the approved cause-and-effect procedure
- Do not use shunt-diode intrinsic-safety barriers unless the official application guidance approves the module
- Emergency shutdown field-input monitoring
- Burner management permissive and trip input acquisition
- Fire and gas detector state monitoring