Technical Specifications

• Part Number: 51304476-125 (51304476125)

• Module Type: MU‑TAOX02, Analog Output FTA

• Channel Configuration: 16 × single‑ended analog output channels

• Signal Types: 4–20 mA (current), 1–5 VDC, 0–10 VDC

• Output Load: 4–20 mA: ≤550 Ω; Voltage: ≥1 kΩ

• Isolation: Channel‑to‑backplane 500 VAC rms basic isolation; non‑isolated between channels

• Resolution: 16‑bit per channel

• Accuracy: ±0.1% FS (full scale) at 25°C

• Power Supply: 24 VDC ±10%, 0.3 A (backplane‑powered)

• Operating Temperature: -20°C to +60°C

• Storage Temperature: -40°C to +85°C

• Humidity: 5%–95% RH, non‑condensing

• Dimensions (H×W×D): 152.4 × 120.7 × 95 mm (MIST form factor)

• Weight: ~0.62 kg

• Certifications: UL‑listed, CE‑compliant

• Terminals: Screw‑type (14–24 AWG, field wiring)

• Connectors: UCN 96‑pin edge connector (backplane), two D‑sub connectors (field)

• Status Indicators: Power LED, fault LED

Interface & Communication Configuration

• DCS Interface: UCN backplane edge connector (1 Mbps, TDC3000/TPS compatible)

• Field Interface: 16‑channel screw terminals + dual D‑sub connectors (4–20 mA / 1–5 VDC devices)

• Diagnostics: On‑board self‑diagnostics with fault reporting via UCN

• Wiring: Accepts 14–24 AWG stranded copper wire

• Redundancy: Supports redundant AO IOP

Core Functions

1. 16‑Channel Analog Output: Converts digital DCS signals to 4–20 mA/1–5 VDC for valves, actuators, and indicators.

2. Signal Conditioning: Precision voltage/current conversion; EMI/RFI filtering for noise immunity.

3. Basic Isolation: 500 VAC channel‑to‑backplane isolation protects DCS from field faults.

4. High Accuracy & Resolution: 16‑bit resolution with ±0.1% FS accuracy for precise control.

5. Backplane‑Powered: Eliminates external power supplies; draws power from UCN backplane.

6. Dual‑Connector Marshalling: Combines screw terminals and D‑sub connectors for flexible field wiring.

Application Scenarios

• Process Industries: Chemical, petrochemical, power generation, pulp & paper (control valve/actuator control).

• Analog Control Outputs: 4–20 mA control valves, positioners, motor drives, and panel indicators.

• Legacy DCS Systems: Replacement/expansion for TDC3000/TPS and MIST systems needing 16‑channel AO FTA.

• Compact I/O Cabinets: MIST form factor for space‑constrained cabinet layouts.

Compatibility Note

• Form‑factor compatible with MIST series FTAs (e.g., 51304476‑100, 51304453 series).

• Functionally compatible with Honeywell TDC3000/TPS and Experion PKS (via UCN AO IOP).

• Key Difference from 51304476‑100: 51304476‑125 uses MIST form factor (smaller, lighter, dual D‑sub connectors); 51304476‑100 is Size C UCN form factor.