Overview

To make modifications in online mode, edit the control project and connect to the controller from Control Expert Editor.

Equal Online Mode

To connect in equal online mode, you can proceed either way:

  • Build and deploy latest modifications from the Topology Manager before editing the control project.

  • Build and deploy modifications from Control Expert Editor. If there are outstanding modifications that you have made in the Topology Manager, you need to synchronize them first to maintain the ability to connect in an equal state after closing the control project.

Once you have deployed to the controller, any modification that you make in the Topology Manager and that impacts its control project requires that you stop the controller to deploy this modification. In such case, a dialog box opens and you have the possibility to cancel the modification and maintain the ability to connect in an equal state.

Also, using the Synchronize Changes command is forbidden except if you have made a change configuration on the fly (CCOTF).

Building CCOTF Changes

The table describes the requirements to be able to build a CCOTF modification from Control Expert Editor while you are connected in equal online mode.

Type of CCOTF modification Requirement to build changes Result when reopening the control project

Allowed online modification that has an impact on the network configuration of the PAC or its dependencies in the Topology Manager.

(For example, adding a drop.)

You need to use the Synchronize Changes command.

You can connect to the controller in equal online mode given you have made no modification in the Topology Manager that impacts the PAC.

Other allowed online modifications.

(For example, adding a digital I/O module to the local rack.)

None.