Honeywell 51304362-100 (MU‑PLAM02)
May 27, 2026

Honeywell 51304362-100 (MU‑PLAM02)

Product Introduction Model: 51304362-100 (Alias: MU‑PLAM02) Type: Low‑Level Analog Input Multiplexer Processor Board Manufacturer: Honeywell Series: TDC3000 / FSC / Safety Manager DCS & SIS Systems Description: The MU‑PLAM02 is a 32‑channel low‑level analog multiplexer (MUX) designed for Honeywell industrial control systems. It precisely conditions and routes low‑voltage/current analog signals from field sensors, enabling high‑density, high‑accuracy data acquisition in process and safety applications.

Description

Technical Specifications

  • Part Number: 51304362-100

  • Channel Count: 32 isolated low‑level analog inputs

  • Input Signal Ranges:

    • Voltage: ±10mV, ±50mV, ±100mV, 0–5V

    • Current: 4–20mA (via external shunt)

  • Accuracy: ±0.05%–±0.1% of full scale (25°C)

  • Resolution: 16‑bit ADC

  • Scan Rate: 100ms per channel (configurable)

  • Switching Time: <5ms channel switching

  • Power Supply: 24VDC ±10%, 6–10W typical

  • Operating Temperature: -40°C to +70°C

  • Storage Temperature: -55°C to +85°C

  • Humidity: 5%–95% RH, non‑condensing

  • Dimensions (H×W×D): 308 × 120 × 35 mm

  • Weight: 0.65 kg (1.43 lbs)

  • Certifications: CE, UL, RoHS, SIL2/SIL3 capable (per application)

Interface & Communication Configuration

  • Field Interface: Screw‑terminal FTA (Field Terminal Assembly) for direct sensor wiring

  • System Interface: Dedicated backplane connector for I/O Link / FSC bus

  • Communication Protocol: Honeywell proprietary I/O Link (supports redundancy)

  • Isolation: Channel‑to‑channel 250Vrms; field‑to‑system 500Vrms

  • Diagnostics: On‑board LEDs for power, run, fault, and communication status; real‑time fault reporting via system bus

Core Functions

  1. 32‑Channel Low‑Level Signal Multiplexing: Efficiently scans and conditions weak analog signals (mV range) from thermocouples, RTDs, and low‑level transmitters.

  2. High‑Accuracy Signal Conditioning: Precision amplification, filtering, and linearization to preserve signal integrity in noisy industrial environments.

  3. Redundancy Support: Compatible with redundant system configurations for high‑availability and safety‑critical loops.

  4. Fault Detection & Reporting: Monitors for open/short circuits, overrange, and module health; reports diagnostics to the host controller.

  5. Hot‑Swappable: Online replacement in redundant systems without process shutdown.

Application Scenarios

  • Process Industries: Chemical, petrochemical, oil & gas, power generation, pulp & paper, and pharmaceuticals.

  • Low‑Level Signal Monitoring: Thermocouple/RTD temperature, strain gauge, and low‑pressure sensor inputs.

  • Safety Instrumented Systems (SIS): FSC and Safety Manager platforms for SIL2/SIL3 safety loops.

  • Honeywell DCS: Native integration with TDC3000, Experion PKS, and legacy process control systems.


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