AddExpressionLine is a method for a Trend Invoke method action.
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Purpose: AddExpressionLine |
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Advanced Configuration: AddExpressionLine |
Purpose: AddExpressionLine
To add a specified expression line to the runtime Trend Control when Invoke Method is triggered by an event.
Lines using runtime data display data reported by the CIMPLICITY Point Manger.
The line cannot be scrolled as all information comes from current data. This type of line is also called a current trend.
Advanced Configuration: AddExpressionLine
Click Advanced on the Action tab of the Procedure Information dialog box.
The Edit Method dialog box opens for the AddExpressionLine method
Configuration is as follows.
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Field |
Description |
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Method name |
Name of the selected method. Note: Another method can be selected from the drop-down list. |
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Method result |
(Optional) Setpoint that contains the status value. |
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Class |
Boolean |
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Structure Type |
BOOL |
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Allowed |
Device or global Point ID. |
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When a user invokes the method, the method result contains one of the following values. |
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Value |
Method Result |
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1 |
The line was successfully added to the trend. |
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0 |
The line was not added to the trend. |
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Parameters |
LineID |
String that provides a name for the Line ID. The name will appear in the Legend to identify the added line. |
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Expression |
String that evaluates to an expression, which is one or more Point IDs and mathematical operators that can be evaluated. Trending creates the trend based on the identified values. |
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List of line display methods. |
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All Trend methods. |
