ABB SA9923A-E HIEE450964R0001 Analog Input Module

SA9923A-E with part number HIEE450964R0001 is a rack-mounted analog input card manufactured by ABB for legacy Advant MasterPiece MP200 and MP300 distributed control systems. It collects standard 4–20mA and 0–10V analog signals from field transmitters such as pressure, flow and temperature sensors, converting analog field data into digital signals for DCS controller processing. The E hardware revision optimizes signal filtering and anti-surge performance for harsh industrial power plant environments.

This single-slot plug-in module provides 16 isolated analog input channels with full galvanic isolation between field circuits and the rack backplane. Each channel is equipped with dedicated LED status indicators and built-in self-diagnosis functions to detect open circuits, short circuits and module hardware faults. Original mass production has been discontinued, and it acts as a critical maintenance spare for thermal power, hydropower, petrochemical and pulp & paper industrial control cabinets.

Main Specifications

• Brand: ABB; Model: SA9923A-E; Part No.: HIEE450964R0001; Origin: Sweden；In stock
• Applicable System: Advant MasterPiece MP200 / MP300 DCS Platform
• Channel Configuration: 16-channel isolated analog input terminals
• Supported Signal Types: 4–20mA current signal, 0–10V voltage signal
• Measurement Accuracy: ±0.1% full scale for standard industrial transmitters
• Isolation Rating: 2500VAC reinforced isolation between field side and control backplane
• Version Upgrade (E): Enhanced EMI filter circuit, improved transient surge suppression design
• Power Supply: 24VDC auxiliary power supplied by DCS rack backplane
• Diagnosis Function: Independent LED indicator for each channel, module-level fault alarm output
• Operating Conditions: -25℃ ~ +70℃, relative humidity 5%~95% non-condensing, high EMC immunity
• Installation: Standard single-slot European rack plug-in design, power-off required for replacement
• Matching Modules: PM511 DCS CPU, FM9925A-E digital output board, GD9924BE/V2 digital input board

Core Functions

• Continuously acquire analog measurement signals from pressure transmitters, flow meters, RTD temperature converters and liquid level sensors deployed on production sites.
• Convert analog current/voltage signals into standardized digital data and transmit data to Advant MP controllers through the internal rack backplane for closed-loop process regulation.
• 2500VAC reinforced isolation completely isolates high-voltage surges and ground loop interference from field wiring, preventing damage to core CPU and backplane circuits.
• E-version optimized filtering circuit eliminates high-frequency electromagnetic noise generated by high-power motors and inverters, reducing signal fluctuation and false data reading.
• Real-time self-diagnosis monitors channel open-circuit, short-circuit and internal chip failure, uploading fault alarm information to the upper HMI monitoring panel automatically.
• Backward compatible with earlier SA9923A/B/C/D revisions, supporting direct replacement without modifying cabinet wiring or control program logic.

Application Scenarios

• Spare analog input card replacement for boiler, steam turbine and generator control racks in thermal power plants equipped with Advant MP series DCS.
• Process signal acquisition spare parts for hydropower station synchronous generator UNITROL1000 excitation system auxiliary monitoring cabinets.
• Maintenance backup inventory for petrochemical refineries, metallurgical steel plants and pulp & paper mill legacy distributed automation control systems.
• Matching analog acquisition module cooperating with ABB PM511 DCS CPU, FM9925A-E digital output board and PP836 local operation HMI panel.
• Overhaul and retrofit components for cement kilns, biomass waste heat power stations and mining auxiliary equipment old ABB DCS control cabinets.

• Global aftermarket spare stock for energy and heavy industry maintenance workshops servicing vintage ABB Advant MP automation hardware.