Technical Specifications

• Part Number: 51304485-100 (51304485100)

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

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

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

• Input Voltage Range: 18–30 VDC (logic high: ≥18 VDC; logic low: ≤5 VDC)

• 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 (backplane); 50‑pin ribbon cable to FTA

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

• Coating: Non‑conformal coated (standard environment)

Interface & Communication Configuration

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

• FTA Interface: 50‑pin ribbon cable to 51304484‑100/150 DI FTAs (field termination assemblies)

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

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

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

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

Core Functions

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

2. Isolated Channel Banks: 1500 VAC isolation protects system from field noise/transients.

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

4. Fast Response Time: ≤10 ms ensures real‑time status updates for critical interlocks.

5. Redundancy Support: Hot‑standby IOPs for high‑availability applications (e.g., safety systems).

6. Backplane‑Powered: No external power supply needed; draws power from UCN backplane.

7. FTA Compatibility: Works with 51304484‑100 (non‑coated) and 51304484‑150 (conformal coated) DI FTAs.

Application Scenarios

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

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

• Legacy DCS Systems: Replacement/expansion for TDC3000/TPS needing 32‑channel digital input.

• Safety & Alarm Systems: Critical interlock monitoring, emergency stop (E‑stop) circuits, alarm annunciation.

• General Industrial Automation: High‑density discrete input monitoring for manufacturing lines.

Compatibility Note

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

• FTA Compatibility: 51304484‑100 (standard DI FTA), 51304484‑150 (conformal coated DI FTA).

• Key Difference from 51304484 Series: 51304485‑100 is the IOP (processor module); 51304484 series are FTAs (field termination assemblies).