ABB CI522AK04 3BSE018451R1
The CI522AK04 is a digital input/output (DI/DO) module from ABB's AC 800M series, which is a core part of their IndustrialIT Extended Automation System 800xA. It is designed for high-density, high-performance integration into complex automation and process control systems.

This specific module is a 16-Channel, 24V DC Digital Input/Output Module.
Detailed Technical Parameters
Parameter Category |
Specification |
Manufacturer |
ABB |
Product Line |
IndustrialIT Extended Automation 800xA |
Controller Family |
AC 800M |
Article Number |
3BSE018451R1 |
Module Type |
CI522AK04 |
Function |
16-Channel Digital Input / Output (DI/DO) |
I/O Type |
Sink/Source (configurable per channel) |
Number of Channels |
16 |
Voltage Level |
24 V DC (Nominal) |
Input Voltage Range (Logic 1) |
15 V DC to 30 V DC |
Input Voltage Range (Logic 0) |
-30 V DC to 5 V DC |
Input Current (typical at 24V) |
~3 mA per channel |
Output Current (per channel) |
0.5 A |
Total Output Current (per module) |
4 A (max, all channels combined) |
Output Power Dissipation |
Typically 1.5 W per active channel |
Isolation |
Channel-to-channel, channel-to-backplane |
Connection |
Via a removable front connector (often a TB521 or similar) |
Backplane Current Consumption |
5 V: 120 mA (typical) |
Status Indicators |
LED per channel (Green for ON/Active) Module status LED (OK, Run, etc.) |
Module Placement |
Must be mounted on a specific I/O unit (e.g., UNTxxx) for the AC 800M rack. |
Software Configuration |
Configured within the ABB Control Builder M engineering tool. Each channel can be individually configured as an input or output. |
Key Features and Characteristics
High Density: Provides 16 configurable points in a single module slot, optimizing cabinet space.
Flexible Configuration: Each of the 16 channels can be individually software-configured in Control Builder M to act as either a Digital Input (DI) or a Digital Output (DO). This offers tremendous flexibility for system design and spare channel usage.
Sink/Source Operation: The module supports both sinking and sourcing wiring for both input and output functions, making it compatible with a wide range of field devices.
Integrated Diagnostics: LED indicators for each channel provide immediate visual status, aiding in quick troubleshooting and commissioning.
Robust Design: Built for industrial environments with high noise immunity and isolation between channels and the system backplane.
System Integration: It is an integral part of the ABB 800xA ecosystem, allowing for seamless data integration into the larger control and visualization system.
Typical Applications
This module is used to interface the AC 800M controller with the plant floor. Common applications include:
Reading the state of push buttons, switches, and sensors (Digital Inputs).
Controlling actuators, solenoid valves, contactors, relays, and indicator lamps (Digital Outputs).
Distributed control in industries like Oil & Gas, Power Generation, Chemical, Pulp & Paper, and Water/Wastewater.
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