Honeywell 51304476-100 (51304476100, MU-TAOX02)
May 28, 2026

Honeywell 51304476-100 (51304476100, MU-TAOX02)

Product Introduction Model: 51304476-100 (Alias: 51304476100, MU‑TAOX02) Type: Analog Output (AO) FTA (Field Termination Assembly) Manufacturer: Honeywell Series: TDC3000 / TPS UCN DCS Description: The 51304476-100 (MU‑TAOX02) is a 16‑channel analog output field termination assembly for Honeywell TDC3000/TPS UCN DCS systems. It converts digital control signals from the AO IOP (Input/Output Processor) into 4–20 mA / 1–5 VDC analog signals for control valves, actuators, and field indicators.

Description

Technical Specifications

  • Part Number: 51304476-100 (51304476100)

  • 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): 270 × 185 × 95 mm (Size C, 18‑inch form factor)

  • Weight: ~1.5 kg

  • Certifications: UL‑listed, CE‑compliant

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

  • Connectors: UCN 96‑pin edge connector (backplane)

  • 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 (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. Compact Marshalling: Size C form factor fits standard UCN cabinets for centralized I/O termination.

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 needing 16‑channel AO FTA.

  • Centralized I/O Cabinets: Standard UCN Size C form factor for consistent cabinet layout.

Compatibility Note

  • Form‑factor compatible with Size C UCN FTAs (e.g., 51304453 HLAI series, 51304451 DO Standby).

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

  • Key Difference from HLAI FTA: 51304476‑100 is analog output (AO); 51304453 series is analog input (AI).


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