Conversion: DATE, DT, TOD, LDATE, LDT, LTOD The operators convert a date and time value into the specified data type and return a type-converted value. The data types DATE and DT use the same memory f

Operator: TRUNC The IEC operator is used for converting the REAL data type into the DINT data type. CODESYS takes only the integer part of the number. Note In CoDeSys V2.3 , the TRUNC operator convert

Operator: TRUNC_INT The IEC operator is used for converting the REAL data type into the INT data type. CODESYS takes only the integer part of the number. Tip TRUNC_INT corresponds to the TRUNC operato

Operands Constants and literals Constants are identifiers for unchangeable values. You can declare constants locally within a POU or globally within a global variable list. The declaration segment is

Constant: BOOL BOOL constants are the truth values TRUE (1) and FALSE (0). For more information, see: BOOL :

Constant: Numeric Numeric values can be binary, octal, decimal, and hexadecimal numbers. If an integer value is not a decimal number, then you must write its base followed by the number sign (#) befor

Constant: REAL, LREAL You can specify floating-point numbers as REAL and LREAL constants either in decimal notation or exponential notation with mantissa and exponent. The decimal point serves as the

Operator: TEST_AND_SET The multicore operator is an extension of the IEC 61131-3 standard. The operator can be used for implementing a semaphore, for example to guarantee exclusive access to a variabl

Operator: Global Namespace The operator is an extension of the IEC 61131-3 standard. An instance path which begins with a dot . always opens a global namespace. If there is a local variable that has t

Operator: Namespace for Global Variable Lists The operator is an extension of the IEC 61131-3 standard. You can use the name of a global variable list (GVL) as a namespace identifier for the variables