Model Explanation

51401214-100: Honeywell part number (written as 51401214100)

51401214 = UCN AI FTA (Analog Input Field Terminal Board) series

100 = Standard version, Rev A hardware, 16 channels, general-purpose analog input

Component Type: FTA (Field Termination Assembly) Field Terminal Board

Compatible Systems: TDC 3000, TPS (UCN Network)

Alternative Model: No direct alternative, UCN-specific AI Terminal Board Technical Specifications

Channels: 16 analog inputs (AI), each channel is independently isolated

Input signals: 4-20mA (default) / 0-10V (jumper selectable)

Resolution: 16 bits, accuracy ±0.1% FS

Isolation: Channel - backplane 1500VAC, channel-to-channel 500VAC

Response time: ≤100ms / channel

Backplane interface: UCN dedicated I/O bus, 5Mbps

Power supply: 24VDC (backplane, ±10%), power consumption ≤8W

Operating temperature: 0°C ~ +60°C

Storage temperature: -40°C ~ +85°C

Humidity: 5%~95% RH (no condensation)

Size: Standard 19-inch card (3U), UCN I/O slot

Weight: Approximately 0.55kg

Certifications: CE, UL, CSA, FM

Interface and Configuration

External interfaces: 16 screw terminals (each channel 3 pins: +/−/ shielding), status LED (CH1~CH16)

Backplane interface: UCN cabinet gold fingers, dedicated high-speed data bus

Configuration method: On-board jumpers (input type 4-20mA/0-10V, channel enable, terminal resistor) + system software configuration

Redundancy: Supports 1:1 hot redundancy with UCN AI module, automatic fault switching

Compatibility: Compatible with TDC 3000 UCN full version, compatible with UCN AI series modules Core function

16-channel analog signal acquisition: Directly connect to on-site 4-20mA transmitters (for temperature, pressure, level, flow, etc.) or 0-10V sensor signals. Filtering, amplification, level conversion ensure accurate and stable signals.

Electrical isolation and anti-interference: High-voltage isolation design to suppress on-site EMI/RFI interference, surge voltage, and protect the DCS backplane and modules.

Channel status monitoring: Each channel has an LED indicator, clearly showing normal / over-limit / fault signals, facilitating inspection and maintenance.

UCN network data interaction: The acquired signals are transmitted to the controller via the UCN bus, supporting real-time monitoring, PID control, and alarm interlock.

Fault self-diagnosis: Built-in open circuit / short circuit / over-range diagnosis, real-time reporting of fault information, and rapid problem channel location. Applicable scenarios

System: Honeywell TDC 3000, TPS (UCN network)

Equipment: UCN cabinet, UCN AI module, 4-20mA/0-10V field transmitters/sensors

Industry: Petrochemicals, thermal power, metallurgy, water treatment, oil and gas transmission, pharmaceuticals

Application: Temperature / pressure / level / flow monitoring, analog instrument signal acquisition, process variable closed-loop control