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Refer to these sections for details:

Supported Series

Rockwell Automation Allen-Bradley ControlLogix, CompactLogix, FlexLogix Ethernet, CompactLogix 1768-L43 1768-L45 with 1768-ENBT/A Ethernet module. 


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

PLC TypeRockwell EtherNet/IP (ControlLogix)
PLC InterfaceEthernet

Port #44818

PLC Station #Same as CPU Slot #

PLC Configuration

The setup shown here is for the Rockwell Automation Allen-Bradley ControlLogix PLC.

The instructions listed here provide only the basic configuration steps. Refer to the Rockwell Automation Allen-Bradley PLC documentation for current, complete details.

  1. Set the PLC IP address.
  2. Create new tags (Controller and Program tags supported).
  3. Export tag data to a CSV file: Tools > Export > Tags and Logic Comments.
    Note: The separator in the CSV file must be a comma.
  4. Open the EasyBuilder project file, select the driver and set the IP address.
  5. Click DataType to open the Structure Editor to edit the data type of the tags and edit the data type of the ProgramTag
    Note: Instead of this manual update, the Program Tag can be directly imported if you are using EasyBuilder.
    1. To add a new data type, right-click on Structure Editor > User-Defined > New Data Type.
    2. After adding all Program Tags, click OK > Save > Exit.
  6. In System Parameter Settings, click Import Tag and select the CSV file.
  7. In the Object dialog, select PLC Tag Address.

LoopEdge DeviceHub Configuration

To configure DeviceHub for this ControlLogix PLC:

  1. DeviceHub > Add Device
    Type: Allen-Bradley
    DriverAB ControlLogix

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

Device Addresses

PLC Data Type


EasyBuilder Data Format




Bit object





16-bit signed, ASCII

-32768 ~ 32767


Double Integer

32-bit signed

-231 ~ (231 - 1)


Single Precision Float

32-bit Float

IEEE 754

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