Variable: VAR_INPUT Input variables are used at the inputs of function blocks. You declare VAR_INPUT variables between the VAR_INPUT and END_VAR keywords in the declaration part of POUs. When called,

Operator: MAX The IEC operator is used for the maximum function. It yields the greatest value of all inputs. OUT := MAX(IN0,IN1,IN2,...) Permitted data types: all Example 110 . Examples Result: 90 ST

Operator: MIN The IEC operator is used for the minimum function. It yields the least value of all inputs. OUT := MIN(IN0,IN1,IN2,...) Permitted data types: all Example 111 . Examples Result: 30 ST Var

Operator: LIMIT The IEC selection operator is used for limiting. OUT := LIMIT(Min, IN, Max) That means: OUT := MIN (MAX (IN, Min), Max) Max is the upper limit and Min is the lower limit for the result

Operator: MUX The IEC operator is used as a multiplexer. OUT := MUX(K, IN0,...,INn) That means: OUT = IN_K Permitted data types for K : BYTE , WORD , DWORD , LWORD , SINT , USINT , INT , UINT , DINT ,

Operator: GT The IEC operator is used for the "greater than" function. Permitted data types of the operands: any basic data type If the first operand is greater than the second operand, then the opera

Operator: LT The IEC operator is used for the "less than" function. Permitted data types of the operands: any basic data type If the first operand is less than the second operand, then the operator yi

Operator: LE The IEC operator is used for the "less than or equal to" function. Permitted data types of the operands: any basic data type If the first operand is less than or equal to the second opera

Operator: GE The IEC operator is used for the "greater than or equal to" function. Permitted data types of the operands: any basic data type If the first operand is greater than or equal to the second

Operator: CAL The IEC operator is used for calling function blocks. In IL, CAL calls the instance of a function block. CAL <function block> (<input variable1> := <value>, <input variableN> := <value>)