ABB GJR2397800R0100 81AR01A-E Analog Input Module

I. Basic Product Information
Original Order Number: GJR2397800R0100
Board Model: 81AR01A-E
System Affiliation: ABB Procontrol P14 Power Station Specialized DCS Control System
Equipment Type: 4-channel Isolated Analog Input Module (Analog Input Module)
Origin: Manufactured by the original factory in Sweden
Core Positioning: Collecting analog signals from on-site transmitters, temperature, pressure, and flow, converting them into digital bus signals for uploading to the P14 controller. This is the core IO board card for collecting process data of power plant boilers, turbines, and auxiliary equipment.

 Core Functional Features
4 independent configurable analog acquisition channels, with single channel capable of flexibly switching between voltage, current, RTD temperature measurement signals
Built-in 16-bit high-precision A/D conversion, with high acquisition accuracy and low temperature drift, suitable for power precision measurement and control
Electrical isolation between channels and the system bus, resistant to high-voltage variable frequency and excitation strong electromagnetic interference
Panel status LED: Power, operation, channel failure, bus communication alarm
European standard card insertion structure, hot-swappable replacement of P14 rack, convenient maintenance
Hardware address setting by dip switch, supporting parallel expansion of acquisition points on the same rack for multiple boards
Built-in hardware overvoltage and overcurrent protection, short circuits at the site will not burn the main control backplane

System architecture matching
Main control unit: P14 CPU controller
Communication hub: 88TK50A-E optical coupling module (GJR2397000R1210)
IO accessories: 81AR01A-E (AI), 81XR series AO output, 83SR analog/digital input/output cards
Upper-level monitoring: Procontrol operation station, event recording, fault diagnosis software
VII. Industry application scenarios
Thermal power plants (main scenario)
Full-process analog quantity collection of boiler drum pressure, steam temperature, feedwater flow, exhaust gas temperature, furnace negative pressure, bearing temperature, lubricating oil pressure; vibration, oil temperature, oil pressure monitoring of steam turbine unit
Hydropower stations
Water head pressure, feedback of guide vane opening, stator/rotor temperature of the unit, cooling water temperature and oil pressure monitoring
Combined heat and power, self-owned power plants
Gas turbine, waste heat boiler, plant power supply signal collection, reactive/active power measurement and control of grid-connected units
Chemical, refining large-scale facilities
Remote data collection of steam pipeline network, compressors, heating furnace pressure, temperature and flow (replacement of old P14 system spare parts)
Self-owned power station of metallurgical steel plant
High-temperature blast furnace power generation, waste heat power generation complete Procontrol P14 measurement and control system IO expansion replacement