4. C300 Controller Configuration 
4.5. Convert a non-redundant C300 Controller to a redundant controller 
The IOLINK block configuration form 
closes since no other data on this form is 
available in the Project view. 
 
4.5 
Convert a non-redundant C300 Controller to a
 
redundant controller 
You can convert a single non-redundant C300 Controller to a redundant controller by 
configuring the controller as redundant. The controller icon which represents the 
secondary controller is then added to the Project tab. 
 
Prerequisites 
 
Control Builder is running 
 
Tree windows are open 
 
Ensure that a C300 Controller is properly installed in the same control cabinet as the 
C300 Controller designated to become the redundant partner. 
 
The C300 Controller hardware and firmware must be identical for both controllers in 
a redundant pair. 
 
Considerations 
 
Do not connect the Redundancy cable between the two controllers until instructed to 
do so. 
 
This procedure can be performed on-process. 
All illustrations used in the procedure are for example purposes only. 
To convert a non-redundant C300 Controller to a Redundant controller, perform the 
following steps. 
 
In the Project window, right-click on 
the C300_NonRED Controller block