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Result of scenario 2:
"Override" mode is closed automatically by the safety program of the F CPU.
The transponders are evaluated again for detection of the effective range.
If the operator is outside the effective range when "Override" mode closes, the system reacts as
described in the section Exiting the effective range without log off (Page 94).
"Override" mode can only be activated again if the override switch is reset by the operator.
6.2.7
Special operating conditions
6.2.7.1
Internal error
Initial situation
The HMI device is logged on in the effective range.
Action
An internal error occurs on the HMI device.
Result
The F CPU performs a shutdown. It stops the section of the system that belongs to the effective
range.
The project is closed immediately.
The HMI device shows a red error display.
All LEDs go out.
The effective range remains allocated.
See also
Diagnostics (Page 101)
Fail-safe operation of the Mobile Panel 277F IWLAN
Function Manual, 08/2008, 6AV6691-1FQ01-2AB0
Operation
6.2 Typical applications
97
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