Change the Operation Mode
You can use the switch on the front of the controller to change the operation mode.
To change the operation mode, you must physically change the position of the switch to correspond with the desired operation mode, as described in the following table.
Switch Position | Operation Mode |
|---|---|
RUN | Run mode |
REM |
|
PROG | Program mode |
When the switch is in the REM position, there are three possible modes:
- To activate Remote Run mode, move the switch from RUN to REM.
- To activate Remote Program mode, move the switch from PROG to REM.
- To activate Remote Test mode, use the programming software along with the REM switch position.
When the switch on the controller is set to RUN mode, features like online editing, program downloads, and firmware updates are prohibited. For a list of prohibited features, see Controller Operation Modes.
The switch provides a mechanical means to enhance controller and control system security. The physical switch can complement other authorization and authentication methods that similarly control user-access to the controller, such as the
FactoryTalk® Security
service.
IMPORTANT:
Place the switch in REM or PROG mode during controller commissioning and maintenance and whenever access is needed to change the program, configuration, or firmware.
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