Technical Specifications

• Part Number: 51304485-150 (51304485150)

• Module Type: MU‑PDIX02, Digital Input IOP (DI), Conformal Coated

• Channel Configuration: 32 × isolated digital input channels (4 banks of 8)

• Input Signal Types: Dry contact (NO/NC), 24 VDC logic (sink/source selectable)

• Input Voltage: Logic high ≥20 VDC; logic low ≤10 VDC

• Sense Current: ON ≥4.5 mA; OFF ≤2.8 mA

• Isolation: Channel‑to‑backplane 1500 VAC rms; bank‑to‑bank isolation

• Response Time: ≤10 ms per channel

• Power Supply: 24 VDC ±10%, 0.5 A (UCN backplane‑powered)

• Operating Temperature: 0°C to +60°C

• Storage Temperature: ‑40°C to +85°C

• Humidity: 5%–95% RH, non‑condensing

• Dimensions (H×W×D): 130 × 35 × 110 mm (UCN IOP form factor)

• Weight: ~0.65 kg

• Certifications: UL‑listed, CE‑compliant, CSA‑certified

• Connectors: UCN 96‑pin edge connector; 50‑pin ribbon cable to FTA

• Status Indicators: Power LED, fault LED, 32 channel status LEDs

• Coating: Conformal coated (harsh/environmentally challenging areas)

Interface & Communication Configuration

• DCS Interface: UCN backplane (1 Mbps, TDC3000/TPS/Experion PKS compatible)

• FTA Interface: 50‑pin ribbon cable to 51304484‑150 (conformal coated DI FTA)

• Diagnostics: On‑board self‑diagnostics; per‑channel open/short detection; FTA fault monitoring

• Wiring: Shielded twisted pair (STP) recommended for 24 VDC signals

• Redundancy: Supported (dual IOPs hot standby, shared FTA)

• Hot Swap: Yes (replace module without system shutdown)

Core Functions

1. 32‑Channel Digital Input: High‑density discrete input monitoring for field devices.

2. Conformal Coating: Protects against moisture, dust, chemicals in harsh environments.

3. Isolated Banks: 1500 VAC isolation prevents field noise/transients from damaging system.

4. Dry Contact/24 VDC Compatibility: Works with mechanical relays and solid‑state outputs.

5. Fast Response: ≤10 ms ensures real‑time status for critical interlocks.

6. Redundancy Support: Hot‑standby for high‑availability applications (safety systems).

7. Backplane‑Powered: No external PSU needed; draws power from UCN backplane.

Application Scenarios

• Process Industries: Chemical, petrochemical, power, pulp & paper (equipment status, safety interlocks).

• Harsh Environments: Offshore, wastewater, high‑humidity/chemical areas (coated version preferred).

• Field Device Monitoring: Limit/pressure/level switches, relay contacts, motor run/stop status.

• Legacy DCS: Replacement/expansion for TDC3000/TPS needing 32‑channel DI in tough conditions.

• Safety & Alarms: Critical interlocks, E‑stop circuits, alarm annunciation.

Compatibility Note

• System Compatibility: Honeywell TDC3000/TPS and Experion PKS (UCN).

• FTA Compatibility: 51304484‑150 (conformal coated DI FTA).

• Difference from 51304485‑100: ‑150 is conformal coated; ‑100 is non‑coated (standard environment).