Rockwell Automation FactoryTalk Historian SE DataLink 4.2 User Guide - Manual (Page 101)

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Supplementary Information
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Type Operator Syntax Example Meaning
...BN) enclosed in the parentheses.
If-Then-Else
Expressions
if then
else
if A then B else D If-then-else expression: returns B if A is
true&emdash;otherwise it returns D
Performance Equation Functions
You can also evaluate expressions that contain FactoryTalk Historian
Performance Equation functions:
 Math Functions (page 94)
 Aggregate Functions (page 95)
 Miscellaneous Functions (page 95)
 FactoryTalk Historian Archive Retrieval (page 96)
 FactoryTalk Historian Archive Search (page 96)
 FactoryTalk Historian Archive Statistics (page 97)
 Point Attributes (page 97)
 Time Functions (page 98)
 Dynamic Response (page 99)
 Alarm Status Functions (page 99)
 String Functions (page 99)
 String Conversion (page 100)