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SIMATIC VPU200/565 Programming Manual
This menu displays the current status of the active and standby units and
provides the function keys to change status. In addition, if the standby unit
is offline, one of the following messages is displayed to give the reason.
State entered at power-up
Offline due to Hardware Mismatch
Offline due to User Command
Offline due to Active unit in PROGRAM mode
Offline requesting online but inhibited by user program in active Unit
Offline due to failure in Standby
Offline due to loss of HBU Communications
Using Support Functions
7-15
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