The ABBCAI 20-P(Global ID:3BDH000722R1) is a high-density 32-channel analog input module designed for the Symphony Harmony/Melody distributed control system. It processes standard 0/4 to 20 mA and 0/2 to 10 V process signals, incorporating an internal 250 ohm shunt resistance framework alongside complete HART digital tracking capabilities.
Technical Specifications
Manufacturer: ABB
Model Designation:CAI 20-P
Primary System Part Number:3BDH000722R1
Hardware Classification: High-Density Analog Input (AI) Board
System Family Compatibility: Symphony Series / Melody Process Automation Architecture
Total Signal Channels: 32 independent analog input processing circuits
Current Input Ranges: 0 to 20 mA or 4 to 20 mA configuration paths
Voltage Input Ranges: 0 to 10 V or 2 to 10 V configuration paths
Digital Protocol Support: HART communications pass-through for intelligent instrumentation
Electrical Isolation Layout: Galvanic isolation designated per complete functional module
Integrated Field Supply: Built-in specialized transmitter power distribution circuits
Required System Accessories: 4 pieces CI 100 or CI 101 connection interfaces plus cable clamp plates
Customs Tariff Tracking Code: 85389099 industrial control component group
Physical Module Dimensions: 55 mm width x 350 mm height x 212 mm depth
Net Hardware Weight: 0.76 kg (1.68 lbs) base board mass
Industrial Application Scenarios
High-Density Tank Monitoring: Collects continuous level, temperature, and pressure signals from up to 32 separate storage assets into a single rack slot.
HART Fleet Configuration: Bridges secondary digital instrumentation diagnostics directly to automated plant management software packages to enable proactive transmitter maintenance.
Power Plant Telemetry: Acquires real-time water-steam loop tracking metrics from distributed processing headers to maintain constant boiler optimization.
Chemical Loop Processing: Manages large sets of independent cascade loop metrics where physical panel area limits require compact module footprints.
