ENBT Example

Before we show you how to co nnect to a ControlLogix through a ControlLogix Gateway using ENBT, you need to understand what a connection path is and how to build one, see the Connection Paths , Follow the Path , and Building the Connection Paths Entries sections.

Here is an example, as pictured below, that has a connection path of 1,3,2,192.168.0.56,1,0 going from PLC 1 to PLC 2. The following table shows the walk-through for these numbers:

Example

 

Connection Path
Walk-through from PLC 1 to PLC 2

1

Move out of ENBT Module to the backplane

3

Move to ENBT Module in Slot 3

2

Move out Ethernet Port

192.168.0.56

Move in EBNT Module at IP Address 192.168.0.56

1

Move out of EBNT to the backplane

0

Move to the Processor in Slot 0

images/download/attachments/6046831/connection_path_drawing_enbt.png

To connect to a ControlLogix through a ControlLogix Gateway using ENBT

  1. Go to the Configure section of the Gateway webpage.

  2. Scroll down and select OPC-UA > Devices.

  3. On the Devices page, find the blue arrow and click on Create new Device.

  4. On the Add Device Step 1: Choose Type page, select Allen-Bradley ControlLogix, and click Next.

  5. On the New Device page, leave all the default values and type in the following fields:
    Name: ControlLogix
    Hostname: type the IP address for the PLC, for example 10.20.4.62
    Connection Path: 1,2,2,10.21.4.52,1,0 ( 1 means going to ControlLogix and going to the back plane in PLC#1, 2 is the slot number of the EBNT module to move to in this example, 2 is the exit port of the ControlNet module, 10.21.4.52 is the IP address of entry point to the ControlNet module in PLC#2)

  6. Click Create New Device.
    The Devices page is displayed showing the ControlLogix device is added to Ignition. The Status will show as Disconnected and then Connected.

  7. To see all the tags, go to OPC Connections > Quick Client in the Configure section, on the OPC Quick Client page expand the ControlLogix folder and in the Global folder you can see all the tags.

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