Honeywell 51303932-401 (51303932401) Product Details

Product Model: 51303932-401 (51303932401)

Brand: Honeywell

Product Category: MU-TSIM12 SDI FTA Modbus Special Serial Device Interface Terminal Component

Applicable Systems: Honeywell Experion PKS C300 / TPS / UCN / APM / HPM Distributed Control System 

I. Product Overview

51303932-401 is a serial interface module specifically designed for Modbus protocol communication within the Honeywell SDI FTA series. The model code is MU-TSIM12. It operates in a fully automatic mode (without hardware manual switch) and features industrial-grade wide temperature and high isolation characteristics. It achieves high-speed and reliable communication between Modbus RTU/ASCII devices and DCS systems through RS-232/RS-485 interfaces, supporting data reading and writing, status monitoring, and remote diagnosis. It is suitable for harsh industrial environments.

II. Core Specification Parameters

1. Interface Characteristics

Interface Type: SDI Serial Device Interface FTA

Communication Protocol: Modbus RTU/ASCII, RS-232 (EIA-232) / RS-485 (EIA-485)

Channels: 1 Channel

Control Mode: Pure Automatic (Remote control by system software, no hardware switch)

Baud Rate: 300 ~ 115200 bps

Data Bits: 5/6/7/8

Parity: None / Odd / Even

Stop Bits: 1/2

Transmission Mode: RS-232 Full Duplex; RS-485 Half Duplex

Drive Capability: RS-485: Supports 32 Nodes

2. Electrical Parameters

Isolation Voltage: 1500 V AC (Channel - System Isolation)

Input Impedance: RS-232: 3 kΩ; RS-485: 120 Ω (Built-in Terminal Resistor)

Operating Power Supply: 24 V DC (Backplane Power Supply)

Power Consumption: ≤ 2.5 W

Protection: Overvoltage, Overcurrent, Reverse Connection, Surge, ESD Protection

3. Environmental Parameters

Operating Temperature: -40°C ~ +85°C (Ultra-Wide Temperature Industrial Grade)

Storage Temperature: -55°C ~ +105°C

Humidity: 5% ~ 95% RH (Non-condensing)

Protection: PCB Three-Defense Coating (Anti-Water, Anti-Salt Fog, Anti-Mold)

Vibration / Impact: Compliant with IEC 60068 Standard

EMC: FCC Part 15 Class A

4. Physical Characteristics

Size: Standard DCS Card (150 × 100 × 25 mm)

Weight: Approximately 0.31 kg

Installation: Hot Swap, Compatible with UCN/C300/APM/HPM Standard Rack

Interfaces: Front Spring-Type Terminal + Backplane Bus Interface

Status Indicators: PWR (Power), RUN (Operation), TX/RX (Transmit/Receive), FAULT (Fault) LED Indicators

5. Certification

Certification: FCC Class A, UL

Compliance: Compliant with RoHS Standard

III. Functional Characteristics

1. Modbus Dedicated Communication

Native Compatibility: Perfectly Compatible with Modbus RTU/ASCII Protocol Devices

Pure Automatic Control: Remote Configuration, Monitoring, and Diagnosis by DCS System Software

Transparent Transmission: No Protocol Conversion, Direct Data Transmission

Bidirectional Communication: Supports Process Value Reading and Writing, Parameter Setting, Fault Diagnosis, Remote Calibration

2. Isolation and Protection

High Electrical Isolation: 1500 V AC Isolation, Suppresses Ground Potential Difference Interference

Multi-Level Protection Circuit: TVS Surge Suppression, PTC Overcurrent Protection, Reverse Connection Protection

Industrial Grade Reliability: Ultra-Wide Temperature, Three-Defense Coating, Adapts to Extreme Harsh Conditions

3. System Compatibility

Fully Compatible: Experion PKS C300, TPS, UCN, APM, HPM Systems

Direct Replacement: Can Be Seamless Replaced with the Same Function Old Models

Non-Redundant Design: Single Channel Standard Configuration IV. Comparison with Key Models of the Same Series Table

Characteristic 51303932-401 51303932-277 51303932-278 51303932-276

Model code MU-TSIM12 MU-TSDM02 MU-TSDU02 MU-TSDT12

Control mode Pure automatic Manual/Auto Pure automatic Pure automatic

Hardware switch ❌ None ✅ Yes ❌ None ❌ None

Special adapter Modbus protocol General serial UDC 6000 Toledo 8142

Interface type RS-232/485 RS-485/422 RS-232/485 RS-232/485

Operating temperature -40~+85°C -40~+75°C -40~+75°C -40~+75°C

Applicable scenarios Modbus device communication General serial device UDC 6000 control Weighing system

V. Typical applications

Modbus device connection: PLC, frequency converter, instrument, sensor, HMI, etc.

Industrial process control: Chemical, power, metallurgy, papermaking, pharmaceutical industries

Data collection and monitoring: Remote Modbus device data collection, status monitoring, parameter setting

Extreme environment application: Ultra-wide temperature, high interference industrial sites

System upgrade: Replacement of old DCS system Modbus interface spare parts

VI. Product status

Type: DCS dedicated SDI FTA (spare parts)

Production status:停产 (legacy spare parts)

Supply： Original inventory， refurbished， second-hand spare parts

Replacement： New C300 serial interface module

VII. Model analysis (51303932-401)

513： Honeywell DCS spare part prefix

03932： SDI serial device interface FTA series

-401： Modbus dedicated， pure automatic， RS-232/485， ultra-wide temperature， FCC certification