Rockwell CompactLogix

Estimated reading time: 1 minute

Refer to these sections for details:

Supported Series

Rockwell Automation Allen-Bradley ControlLogix, CompactLogix, FlexLogix Ethernet.


Certain device drivers will not have a list of register names in the DeviceHub Add Tag form. These are Free Tag PLCs. For Free Tag requirements, see Troubleshoot Device Connectivity Status.

PLC Connection Settings

Parameters Recommended Options Notes
PLC Type Rockwell EtherNet/IP (CompactLogix)
PLC Interface Ethernet

Port # 44818

PLC Station # 1

OT Link Platform DeviceHub Configuration

To configure DeviceHub for this CompactLogix PLC:

  1. Go to DeviceHub > Add Device
    Type: Allen-Bradley
    Driver: AB CompactLogix

  2. Enter details specific to your environment and click Add Device.

Device Addresses

PLC Data Type


Data Format


BOOL Boolean Bit object


INT Integer 16-bit signed, ASCII -32768 ~ 32767
DINT Double Integer 32-bit signed -231 ~ (231 - 1)
REAL Single Precision Float 32-bit Float IEEE 754