Equal
For integer, REAL, TIME, DATE, and STRING variables, compares the first input to the second to determine equality.
For TON, TP, TOF, BLINK, and StepName.t in SFC chart, equality testing of TIME variables is not recommended.
Arguments | ||
|---|---|---|
i1 | BOOL - SINT - USINT - BYTE - INT - UINT - WORD - DINT - UDINT - DWORD - LINT - ULINT - LWORD - REAL - LREAL - TIME - DATE - STRING | Both inputs must have the same format. |
i2 | BOOL - SINT - USINT - BYTE - INT - UINT - WORD - DINT - UDINT - DWORD - LINT - ULINT - LWORD - REAL - LREAL - TIME - DATE - STRING | |
o1 | BOOL | TRUE if i1 = i2 |
Example
(* FBD example with "Is Equal to" Operators *)
(* ST Equivalence: *)
aresult := (10 = 25); (* aresult is FALSE *) mresult := ('ab' = 'ab'); (* mresult is TRUE *)
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