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L-force | PLC Designer

IEC Operators and additional norm extending functions

480 DMS 3.2 EN 02/2011 TD29 

Example in FBD:

PLC Designer IEC operator: Greater than or equal to

A Boolean operator that returns the value TRUE when the value of the first operand is

greater than or equal to that of the second. The operands can be BOOL, BYTE, WORD,

DWORD, SINT, USINT, INT, UINT, DINT, UDINT, REAL, LREAL, TIME, DATE,

TIME_OF_DAY, DATE_AND_TIME and STRING.

Example in IL:

ST Var1 (* Result is TRUE *)

Example in ST:

VAR1 := 60 >= 40;

Example in FBD:

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Lenze PLC Designer PLC Designer (R2-x) Manual do Utilizador Página 482