Attention

IronPLC supports IEC 61131-3 Structured Text excluding I/O mapping.

EQ

Returns TRUE if two inputs are equal.

IEC 61131-3	Section 2.5.1.5.4
Support	Supported

Signatures

#	Input (IN1)	Input (IN2)	Return Type	Support
1	SINT	SINT	BOOL	Supported
2	INT	INT	BOOL	Supported
3	DINT	DINT	BOOL	Supported
4	LINT	LINT	BOOL	Supported
5	USINT	USINT	BOOL	Supported
6	UINT	UINT	BOOL	Supported
7	UDINT	UDINT	BOOL	Supported
8	ULINT	ULINT	BOOL	Supported
9	REAL	REAL	BOOL	Supported
10	LREAL	LREAL	BOOL	Supported

Description

Returns TRUE if IN1 is equal to IN2, FALSE otherwise. EQ(a, b) is the functional form of the = operator: a = b. Both forms are equivalent.

For REAL and LREAL types, equality comparison is subject to floating-point precision limitations.

Example

See Also

• NE — not equal

• GT — greater than

• LT — less than