ABB CAI20 3BDH000722R1 Analog Input Module

Overview

The ABB CAI20 is a 32-channel analog input module. It captures analog signals for ABB Symphony control systems. It supports current and voltage signals with integrated HART communication. The module features electrical isolation and a short-circuit-proof transmitter power supply. Its 12-bit A/D converter ensures precise data acquisition. It operates reliably in industrial environments within 0°C to 50°C.

Technical Specifications

• Model: CAI20

• Product ID: 3BDH000722R1

• Input Channels: 32 analog inputs

• Signal Types:

• Current: 0/4...20 mA

• Voltage: 0...10 V

• HART Protocol: Versions 5.0 / 5.1 supported

• Electrical Isolation: Full isolation per module

• Transmitter Power Supply: Short-circuit proof

• A/D Conversion: 12-bit resolution

• Operating Temperature: 0°C to 50°C

• Power Supply: 20-33 V DC (nominal 24 V ±10%)

• Current Consumption:

• Transmitter supply off: ~195 mA @ 24 V

• Transmitter supply on: ~865 mA @ 24 V (η = 0.75)

• Power Loss: Maximum 11 W @ 24 V

• Memory (for control processors):

• RAM: 128 MB

• ROM: 4 MB

• NVRAM: 512 KB

• Dimensions: 212 mm (Depth) × 350 mm (Height) × 55 mm (Width)

• Weight: 0.76 kg