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Can I disable pick actions based on which user is logged on?
Yes, pick actions can be disabled on a per user basis using the IsLoggedOn opc property.
In the enclosed example (which may be imported into ClearSCADA 2009 R1 or newer) three users have been created: Eng1, Eng2 and Op1. An internal analog point has been created and a button placed on a mimic with a pick action to hand control the analog point. The 'PickDisabled' property in the 'Animations' screen of the button has been set up with the following expression (shown below in Flowchart form):
flowchart.JPGflowchart.JPG
This is what the full expression looks like:
fullExpression.JPGfullExpression.JPG
The PickDisabled property is set to 'TRUE' only if the 'Op1' user is logged on. If either the 'Eng1', 'Eng2', or 'Guest' users are logged on then the PickDisabled property is set to 'FALSE'. This means that the pick action is only disabled if the 'Op1' user is logged on.
Below is a screenshot showing the state of the button when the 'Eng1' user is logged on.
Eng1.JPGEng1.JPG
And here is a screenshot of the button when the 'Op1' user is logged on.
Op1.JPGOp1.JPG
Notice that the button is greyed out. It's operation is disabled.
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Problem
Can I disable pick actions based on which user is logged on?
Solution
Yes, pick actions can be disabled on a per user basis using the IsLoggedOn opc property.
In the enclosed example (which may be imported into ClearSCADA 2009 R1 or newer) three users have been created: Eng1, Eng2 and Op1. An internal analog point has been created and a button placed on a mimic with a pick action to hand control the analog point. The 'PickDisabled' property in the 'Animations' screen of the button has been set up with the following expression (shown below in Flowchart form):
flowchart.JPGflowchart.JPGThis is what the full expression looks like:
fullExpression.JPGfullExpression.JPGThe PickDisabled property is set to 'TRUE' only if the 'Op1' user is logged on. If either the 'Eng1', 'Eng2', or 'Guest' users are logged on then the PickDisabled property is set to 'FALSE'. This means that the pick action is only disabled if the 'Op1' user is logged on.
Below is a screenshot showing the state of the button when the 'Eng1' user is logged on.
Eng1.JPGEng1.JPGAnd here is a screenshot of the button when the 'Op1' user is logged on.
Op1.JPGOp1.JPGNotice that the button is greyed out. It's operation is disabled.
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