Section 8 Service Controller menu
M&I – AC 900F Controller 115
Locked.png
Enter 0000 to deactivate the PIN prompt. The previously mentioned menus and
functions will be available again.
F2 function: Download enabled/disabled
Press F2 to block (disable) downloads. It is thus no longer possible to download a
configuration (application) from the Engineering Station to the controller. The same
applies to firmware updates or the performance of “correctly” modified parameters.
Interventions from Freelance Operations are not disabled.
Display: Run/Stop enabled/disabled
The Run/Stop switch can only be disabled in Freelance Engineering and not on the
display unit.
AC 900F Parameters > CPU/Security > Security > Run/Stop switch
F3 - Restart
The functions provided in the Restart submenu allow the controller to be started in
different ways.
Select the restart type by pressing the corresponding function key. Regardless of the
function key selected, the Restart now? prompt will be displayed. Press the OK
key to release the function.
The Restart functions can only be activated from a single controller. In the case of
controller redundancy, pressing F1...F3 will only produce a redundancy change
(Toggle).
With controller redundancy, the warm/cold start or initialization functions in
Freelance Engineering should be used
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