Honeywell 51303932-426 (51303932426) Product Details

Product Model: 51303932-426 (51303932426)

Brand: Honeywell

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

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

I. Product Overview

51303932-426 is a Modbus-specific serial interface module of the Honeywell SDI FTA series, with the model code MU-TSIM12. It provides an RS-232 interface for the Honeywell DCS system, specifically for connecting third-party devices that follow Modbus RTU/ASCII protocols, enabling reliable data communication between industrial field instruments, PLCs, sensors, and control systems. 

II. Core Specification Parameters

1. Interface Characteristics

Interface Type: SDI Serial Device Interface FTA

Communication Protocol: Modbus RTU/ASCII

Physical Interface: RS-232 (EIA-232), Standard DB9 Connector

Channel Number: 1 Channel

Control Mode: Pure Automatic (Controlled by System Software, No Hardware Manual Switch)

Baud Rate: 300 ~ 115200 bps (Standard 9600 bps)

Data Bits: 5/6/7/8

Parity: None / Odd / Even

Stop Bits: 1/2

Transmission Mode: Full Duplex

2. Electrical Parameters

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

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

Power Consumption: ≤ 2.5 W

Protection: Overvoltage, Overcurrent, Reverse Connection, Surge, ESD (Electrostatic Discharge) Protection

3. Environmental Parameters

Operating Temperature: -40°C ~ +70°C

Storage Temperature: -40°C ~ +85°C

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

Protection: PCB Three-Defense Coating (Airtight, Salt Spray Resistance, Mold Resistance)

Vibration / Impact: Compliant with IEC 60068 Standard

EMC: FCC Part 15 Class A

4. Physical Characteristics

Weight: Approximately 0.32 kg

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

Interfaces: Front DB9 Interface + 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 Support: Optimized for Modbus RTU/ASCII Protocol

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

Bidirectional Data Transmission: Supports Process Data Reading and Writing, Equipment Status Monitoring

Data Verification: Built-in CRC Verification to Ensure Accurate Data Transmission

2. Isolation and Reliability

High Isolation Design: 1500 V AC Isolation, Effectively Suppressing Industrial Environment Interference

Industrial Grade Stability: Wide Temperature Operating Range, Suitable for Harsh Conditions

Plug-and-Play: Supports Hot Swap, Facilitating System Maintenance and Replacement

3. System Compatibility

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

Direct Replacement: Can be Used as the Same Series MU-TSIM12 Model (e.g. -401) as a Spare Part

Non-Redundant Design: Single Channel Standard Configuration

IV. Comparison with Key Models of the Same Series Table

Characteristics 51303932-426 51303932-401 51303932-403

Model code MU-TSIM12 MU-TSIM12 MU-TSIM13

Physical interface RS-232 (DB9) RS-232/485 RS-232/485

Isolation voltage 1500 V AC 1500 V AC 2000 V AC

Modbus mode Slave Slave Slave Master/Slave dual mode

Operating temperature -40~+70°C -40~+85°C -40~+85°C

Hardware switch ❌ None ❌ None ❌ None

Positioning Standard RS-232 version General version Enhanced high-performance version

V. Typical applications

Modbus device connection: Connect instruments, PLCs, sensors, HMIs, etc. via RS-232 interface

Industrial process control: DCS systems in industries such as chemical, power, metallurgy, and papermaking

Data acquisition system: Real-time data collection from third-party Modbus devices

System spare parts: Replacement of MU-TSIM12 modules in old UCN/APM systems

VI. Product status

Type: DCS-specific 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 (51303932-426)

513： Honeywell DCS spare part prefix

03932： SDI serial device interface FTA series

-426： MU-TSIM12， Modbus dedicated， RS-232 (DB9)， 1500V isolation， -40~+70°C temperature range