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Frequently inquire Together
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InquiryTriconex 3564 Digital Input Module
The Triconex 3564, also cataloged as the 3564 single digital input module, operates as a high‑density input interface for 64 channels within Tricon safety instrumented systems (SIS). It applies triple modular redundancy (TMR) across internal circuits to ensure deterministic safety execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3564 |
| Brand | Triconex |
| Origin | USA |
| Product Type | Single Digital Input Module |
| Input Channels | 64 commoned |
| Rated Voltage | 24 VDC |
| Operating Range | 15–30 VDC |
| Max Input Voltage | 36 VDC |
| Switching Levels | OFF→ON > 15 VDC, ON→OFF < 6 VDC |
| Input Current | 2–3 mA typical |
| Hysteresis Voltage | 4 VDC |
| Isolation | 1500 VDC point isolation |
| Input Impedance | > 3.0 kΩ |
| Field Load Power | 0.2 W per ON point at max voltage |
| Input Delay | < 2 ms both directions |
| Diagnostics | ON/OFF stuck detection < 0.5 s |
| Safety Integrity | SIL3 compliant |
| Indicators | Per‑channel LEDs, PASS/FAULT/ACTIVE module LEDs |
| Nominal Power | 7.5 W |
| Operating Temp | 0 to +60 deg C |
| Humidity | 5% to 95% non‑condensing |
| Color Code | Dark Red |
Triple Modular Redundancy and SIL3 Certification
The 3564 integrates TMR 2oo3 architecture across its internal logic paths. Each input signal is processed by three parallel circuits, with majority voting ensuring fail‑safe state execution. Galvanic isolation between channels prevents fault propagation. The module is certified to SIL3 safety integrity level, supporting deterministic shutdown logic in SIS applications.
Frequently Asked Questions
Q: What is the input delay time for state transitions? A: OFF to ON and ON to OFF transitions are both processed in less than 2 ms.
Q: How does the module detect stuck inputs? A: Automatic diagnostics perform ON and OFF state stuck detection within 0.5 s.
Q: Can the module operate beyond 30 VDC? A: The maximum input voltage is 36 VDC; exceeding this may damage the input circuitry.
Field Installation Guidelines
- Mount the module in the designated Tricon chassis slot with secure retention.
- Route input wiring separately from high‑voltage conductors to minimize interference.
- Ensure shielded cabling is bonded to chassis ground for EMI suppression.
- Verify input excitation voltage before energizing the module.
- Observe LED indicators during commissioning to confirm channel and module health.
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