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Setting a Timeout on a Forced Value
You set a timeout on a forced value when you want the value to be unforced automatically at a fixed time.
When you force a value, you override all input from the system. For example, if a schedule is set to enable a device at 09:00, but you want to enable it at 08:00, you can force the enablement at 08:00.
You can manually release a forced value at any time or you can automate the release, using a Timed Force utility object to specify the duration or end time of the force. Pour plus d'informations, voir Timed Force Objects .
When you release a forced value, the value returns to its normal status.
In WorkStation, you can view the unforced value, which is the real value from the system, at any time. Pour plus d'informations, voir Viewing an Unforced Value .
You can set a timeout on forced values so that the forced value is automatically unforced after a fixed time. The time can be a duration, for example two hours. The forced value can also be unforced at a specific calendar date and time.
Pour plus d'informations, voir Setting a Timeout on a Forced Value .
Pour plus d'informations, voir Setting a Timeout on a Forced Value WebStation .
A forced value is indicated by orange color in the properties dialog boxes. In in the Watch pane, a forced value is indicated by a pointing hand
In the List View and Search View, a forced value is indicated by the text [Forced] in the 'Value' column.
In WorkStation, you can view the unforced value, which is the real value from the system, at any time. Pour plus d'informations, voir Viewing an Unforced Value .
A forced value is indicated by orange color and a pointing hand in the List view.
A forced value is indicated by orange color in Function Block Graphics Viewer. Pour plus d'informations, voir Forced Value Indication in Function Block Graphics Viewer .
You can search for forced values using the search function in WorkStation.
Pour plus d'informations, voir Searching for Forced Values .
You can search for forced values in WebStation using Diagnostics.
Pour plus d'informations, voir Displaying a List of Forced Values in WebStation .
In Workstation, click the value you want to set a timeout on.
In the value row, click Force .
Click the Set timeout button
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Chose if you want a duration of the forced value or if you want the value to be unforced on specific date and time.
Click OK .
Click Save .
Forced Values
Forcing a Value
Releasing a Forced Value