ABB|CAI20| Analog Input Module
ABB CAI 20 Analog Input Module
Description
ABB CAI 20 is a high-density analog input module for process signal acquisition in industrial automation systems.
Features
- Supports up to 32 analog inputs or 16 with binary release signals
- Compatible with 2-wire and 4-wire transmitters (4–20 mA), HART protocol
- Provides voltage measurement (0–10 V) and digital communication
- Includes overload/short-circuit protection and electrical isolation
- Designed for redundant operation and real-time monitoring
Technical Specifications
-
Analog Inputs
- Max. 32 channels for 2-wire transmitters (4–20 mA) with isolated supply
- Max. 32 channels for voltages (0–10 V)
- Measuring range: 0–22.5 mA / 0–11.5 V
- A/D conversion: 12-bit, linearity error ≤6 µA / ≤3 mV
- Zero error ≤12 µA / ≤6 mV; amplification error ≤0.1%
-
Transmitter Supply
- Output voltage ≥23 V
- Rated current 25 mA; short-circuit current 38 mA
-
Binary Inputs
- L signal: –3 to +5 V
- H signal: +12 to 35 V
- Input current ~0.75 mA
-
HART Communication
- Supported versions: 5.0 / 5.1
- Minimum current: 3 mA
-
Signal Processing
- Low-pass damping: T = 100 ms, –30 dB at 50 Hz
- Update time <40 ms
-
Electrical Isolation
- Group-wise isolation
- Rating voltage: 50 Veff
- Test voltage: 500 Veff
-
Power Supply
- Voltage: 20–33 V DC
- Current consumption: 195 mA (standby), 865 mA (active)
- Max. power loss: 11 W at 24 V DC
ABB|CAI20| Analog Input Module
ABB|CAI20| Analog Input Module
ABB CAI 20 Analog Input Module
Description
ABB CAI 20 is a high-density analog input module for process signal acquisition in industrial automation systems.
Features
- Supports up to 32 analog inputs or 16 with binary release signals
- Compatible with 2-wire and 4-wire transmitters (4–20 mA), HART protocol
- Provides voltage measurement (0–10 V) and digital communication
- Includes overload/short-circuit protection and electrical isolation
- Designed for redundant operation and real-time monitoring
Technical Specifications
-
Analog Inputs
- Max. 32 channels for 2-wire transmitters (4–20 mA) with isolated supply
- Max. 32 channels for voltages (0–10 V)
- Measuring range: 0–22.5 mA / 0–11.5 V
- A/D conversion: 12-bit, linearity error ≤6 µA / ≤3 mV
- Zero error ≤12 µA / ≤6 mV; amplification error ≤0.1%
-
Transmitter Supply
- Output voltage ≥23 V
- Rated current 25 mA; short-circuit current 38 mA
-
Binary Inputs
- L signal: –3 to +5 V
- H signal: +12 to 35 V
- Input current ~0.75 mA
-
HART Communication
- Supported versions: 5.0 / 5.1
- Minimum current: 3 mA
-
Signal Processing
- Low-pass damping: T = 100 ms, –30 dB at 50 Hz
- Update time <40 ms
-
Electrical Isolation
- Group-wise isolation
- Rating voltage: 50 Veff
- Test voltage: 500 Veff
-
Power Supply
- Voltage: 20–33 V DC
- Current consumption: 195 mA (standby), 865 mA (active)
- Max. power loss: 11 W at 24 V DC
