I. Product Description

Series: ABB Bailey INFI90 / Symphony Plus (S+HR) DCS, Harmony rack-mounted plug-in I/O cards

Matching terminal base: NTAI23 / NTDI23 terminal board, matching dedicated signal cables

Positioning: Main temperature measurement + analog signal acquisition card for power plants, universal AI cards for all types

Core Parameters Table

Project Specifications

Number of channels 16 isolated analog inputs (each channel independently processed)

Compatible input signals RTD platinum resistance (PT100/PT1000), thermocouple TC (K/S/B/E/J/T), mV millivolt, 4-20mA, 0-5/10V high-level signals (High Level)

AD accuracy 16-bit AD, full-scale range accuracy ±0.1% FS, 50/60Hz power frequency filtering anti-interference

Power supply Backplane 5VDC taken from Harmony rack power supply, no external power supply required

Dimensions W73.7 × H360.7 × D269.2mm, net weight 0.77kg

Operating temperature -25℃～+60℃, cabinet rack installation, supports hot-swappable while powered on

Channel isolation Isolation between channels, between site and system side, 2500VAC for electrical isolation against ground loop interference

Module functions

Multi-source signal acquisition: boiler furnace temperature, turbine shaft temperature (RTD/TC); pressure / flow transmitters 4-20mA; liquid level voltage signals unified acquisition and transmission to BRC controller

Cold end compensation: onboard built-in thermocouple cold end compensation, no need for additional compensation box at site

Fault self-diagnosis: open circuit, short circuit, over-range alarm, fault location uploaded to system SOE

Redundant configuration: Rack supports dual-module redundant configuration, commonly used in thermal power main control systems

Application industries

Thermal power / thermal power boiler, turbine DCS; chemical refining, papermaking, metallurgy large-scale installations Symphony control system temperature measurement points, existing INFI90 system spare parts main model