Caused by the User

For a variety of reasons, you can decide to switch from online mode to offline mode even if a breakpoint has been set in a section or if you are in step by step mode.

In this case, you must confirm your choice:

Following confirmation, all application tasks are stopped.

Caused by a fault

When a breakpoint is set in a task section, or when you are in step by step mode, if a hardware or communication problem is detected, the PLC switches automatically from online mode to offline mode and the breakpoint is lost without a request for confirmation.