Action Requests 7-5SIMATIC PCS 7 OSx 4.1.2 Operator
If an operator chooses to answer an action request and commit the answer
to the database, OSx updates the database, changes the state of the reset
bit from 1 to 0, and records the action on the Operator Change Log. At this
point, the action request is ready to be triggered again when the controller
program requests interaction.
Occasionally, a controller program resets a triggered action request before
the operator has answered it. In this situation, the action request software
removes the request and its corresponding icon from the OSx station and
makes a record of the activity on the Operator Change Log.
During normal operations, one or more action requests can be triggered at
the same time. In most situations, try to configure the requests so they
occur at different times.
NOTE: In order to answer an action request, the operator must have both
the action request privilege and the privilege to modify the tag attributes
involved. Refer to the chapter on viewing tag information in the SIMATIC
PCS 7 OSx Process Configuration Manual to determine w hich security
privileges allow an operator to modify particular tag attributes.
An operator with the privilege to respond to action requests, but without the
privilege to modify the tag attribute involved, can respond to view-only
action requests.
The engineer can attach an action request to a graphic with the
mini-windows feature. When you e nable mini-windows from the Event
Preferences screen, any action request attached to a graphic is displayed in
a list at the lower right of the graphic if the request has been triggered and
not reset or answered. See page 5-10 for more information.
Action Request
Mini-Windows
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