Product Details：

Honeywell 51197020100 (51197020-100) is a rack plug-in analog input module designed for Honeywell TDC3000 five-slot IOP chassis,its main purpose is receiving,conditioning and digital conversion of 4-20mA analog signals from field transmitters. This module is dedicated for analog measurement points including temperature,pressure,flow,level and other continuous process variables. It converts the standard 4-20mA current loop signal into digital data that conforms to TDC3000 Data Hiway bus protocol,filters high-frequency noise interference from field cables and detects under-range,over-range and open-circuit fault status of each channel. It communicates with CE dual-node processor board through the backplane bus,uploading sampled process values to the controller for PID closed-loop calculation and alarm judgement. It adopts isolated channel design between different measurement loops to suppress crosstalk,avoiding mutual interference between adjacent analog signals in heavy industrial environment. It supports hot swap operation under lockout-tagout maintenance procedure,engineers can replace the faulty analog input board separately without powering down the whole I/O subrack. It continuously monitors each channel signal current,loop status and backplane communication quality,recording timestamped fault logs and uploading open circuit,overrange or hardware failure alarm messages to LCN operator station for maintenance personnel to check field instruments,signal cables or the module itself. It is a scarce original spare analog I/O board for old TDC3000 projects,perfectly matched with 51195499100 five-slot chassis,dual node processor module and chassis power supply.

Key specifications：Standard plug-in analog input board for TDC3000 5-slot IOP chassis,4-20mA current loop input,multi-channel isolated design. Operating temperature range is 0°C to +60°C. It supports signal open circuit,overrange and bus communication timeout fault diagnosis. The PCB is conformal coated for dust-proof and anti-surge performance. Front panel channel LED indicators display active signal status and channel fault warning for quick on-site inspection.

This analog input module is widely deployed in petrochemical,chemical,power generation and water treatment plants for legacy TDC3000 DCS remote I/O subrack reconstruction and spare replacement projects. It cooperates with Honeywell CE dual-node processor,NIM gateway and HM history module to build distributed Data Hiway field control architecture. As a core unit for analog input module and 4-20mA acquisition board,it is the key continuous variable signal collection hardware of TDC3000 remote I/O subrack. Clearly defined terminal pins simplify field transmitter wiring,channel calibration test and regular isolation performance verification work for control engineers.