Allen Bradley Ethernet Autodetect Wizard

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The Allen Bradley Ethernet Autodetect Wizard can simplify the setup of TCP/IP communications. The wizard tries different IP Addresses until a PLC is found.

Note: The Wizard will only work if the physical connection to the device is wired correctly. If you run the Wizard with an incorrectly wired connection, the Wizard will not detect anything. It is worth spending time checking the physical connection is correct before running the Wizard.

Using the Allen Bradley Ethernet Autodetect Wizard

1. Start Configuration Tool. Use one of the connection options on the Start Page to connect to Fernhill SCADA.

2. Select the Tag Window in the Configuration Tool.

3. Right click on the folder where you want to import the detected configuration. The Tag Window Menu opens:

The tag window context menu showing the autodetect option

4. Click Autodetect.... The Autodetect... Wizard opens:

Autodetect Welcome Page

5. Click Next.... The Choose Device Type or Protocol page opens:

Autodetect Choose Driver

Note: You can only detect one device type or protocol at a time.

6. Select Allen Bradley Ethernet then click Next>. The Choose Protocols page opens:

Autodetect Choose Protocols

Note: Ethernet/IP is the most widely supported protocol. CSPv4 protocol is only supported by legacy PLCs. If you have a very old PLC you might need to try CSPv4.

7. Select Ethernet/IP then click Next>. The Choose IP V4 Address page opens:

Autodetect Choose IP Address

8. Enter the IP addresses you want to scan, then click Next>. The Ready to Start page opens:

Autodetect Ready to Start

9. Review the autodetect parameters and, if you are satisfied with your selection, click Next. The Autodetect Wizard will start:

Autodetect In Progress

When the Autodetect Wizard has finished searching the progress bar shows Complete:

Autodetect Complete

10. If the Autodetect Wizard has found devices, you can click Next to review the results:

Autodetect Found Device

11. Click Finish to create suitable configuration to communicate with the PLC. Click Cancel to cancel the operation.  If you clicked Yes, expand the NewConfiguration folder to see the automatically generated tags:

Autodetect New Configuration

Further Information

Allen Bradley PLC Data Address Format

To learn how to choose a data location in a Allen Bradley PLC Tag.

Autodetect Wizards

For a list of autodetect wizards supported by Fernhill SCADA.


For the meaning of terms used in Fernhill SCADA.