ExpressionID_UnitID_Values
The
ExpressionID_UnitID_Values
item returns the current expression value and all of its leaf node values for a given expression and unit association.This table shows the input and output formats for this item.
Input Format | Request: ExpressionID_UnitID_Values | ||
ExpressionID | is | ASCII - Integer, the unique ID of an Expression. Use UnitReqIDBindingRequirements data item or UnitReqIDBindingPreferences data item to retrieve this value. | |
UnitID | is | ASCII - Integer, the unique ID of a unit instance. Use UnitsList data item to retrieve this value. | |
Output Format | The ExpressionID_UnitID_Values item returns in this format: | ||
where: | |||
<ExpressionValues> | is | <ExpressionValue> <ExpressionData> | |
<ExpressionData> | is | <ErrorData> | <LeafValuePairs> | |
<LeafValuePairs> | is | <NullList> | /t <LeafValueList> | |
<LeafValueList> | is | <LeafPair> | <LeafPair> /t <LeafValueList> | |
<LeafPair> | is | <LeafName> /t <LeafValue> | |
where: | |||
Field Name | Format | Description | |
<ErrorData> | ASCII - String | String describing error that prevents proper evaluation of Binding Expression. This is typically either a parsing error or a mathematical exception. | |
<ExpressionValue> | ASCII - Variable | Evaluated value of the expression. | |
<LeafName> | ASCII - String | Name of the leaf from the expression. | |
<LeafValue> | ASCII - Variable | Value of the leaf from the expression. | |
<NullList> | ASCII - String | Empty string | |
This table shows an example of the return on this request.
Example: | A request on object . GetItem(15_4_Values), ) which is associated with the expression "(25 <= ON_SCAN_READY) AND ( ON_SCAN_READY <= 75) OR ON_SCAN_READY >= 0"could return:TRUE/tON_SCAN_READY/t0/t0/t0/ON_SCAN_READY/t/t0/t75/t75/t25/t25/ON_SCAN_READY/t0 |
Provide Feedback