CODESYS Development System
Operator: SHL The IEC operator is used for bitwise shift of an operand to the left. erg := SHL (in, n) in : Operand which is shifted to the left n : Number of bits to shift in to the left Important If
CODESYS Development System
Operator: SHR The IEC operator is used for bitwise shift of an operand to the right. erg := SHR (in, n) in : Operand which is shifted to the right n : Number of bits to shift in to the right Important
CODESYS Development System
Operator: ROL The IEC operator is used for bitwise rotation of an operand to the left. Permitted data types: BYTE , WORD , DWORD , LWORD erg := ROL (in, n) CODESYS moves in n-times one bit to the left
CODESYS Development System
Operator: ROR The IEC operator is used for bitwise rotation of an operand to the right. Permitted data types: BYTE , WORD , DWORD , LWORD erg := ROR(in,n) CODESYS moves in n-times one bit to the right
CODESYS Development System
Operator: __POUNAME The operator is an extension of the IEC 61131-1 standard. At runtime, the operator yields the name of the POU that contains the operator __POUNAME . The result is of type STRING .
CODESYS Development System
Functions In ST, you can use a function call as an operand. Example 194 . Example: Result := Fct(7) + 3; TIME() function This function yields the time (in milliseconds) that has elapsed since system b
CODESYS Development System
Data Types In the programming, a variable is identified by its name and has an address in the memory of the target system. Accordingly, variable names are identifiers under which the allocated memory
CODESYS Development System
Data Type: __UXINT, __XINT, __XWORD Variables with these special data types are converted to a platform-compliant data type, depending on the target system. CODESYS supports systems with address regis
CODESYS Development System
User-defined data type: TYPE :
CODESYS Development System
Data Structure: UNION A UNION is a data structure with usually different data types. In a union, all components have the same offset and therefore the same amount of storage space. TYPE NAME_AB: UNION