CODESYS Development System
Operator: Library Namespace Syntax: <library namespace>.<library POU identifier> Example: LIB_A.FB_A A library POU identifier is appended with the library namespace (as a prefix separated by a dot) fo
CODESYS Development System
Operator: Enumeration Namespace The operator is an extension of the IEC 61131-3 standard. You can use the TYPE name of an enumeration for unique access to an enumeration constant. In this way, you can
CODESYS Development System
Operator: __POOL The operator is an extension of the IEC 61131-3 standard. The operator is used to reference objects which are managed in the global POU pool (in the POUs view). The operator directly
CODESYS Development System
Operator: INI Tip The INI operator is an operator of CoDeSys V2.3 . This operator is replaced by the FB_Init method as of CODESYS V3. However, you can still use this operator in projects that are impo
CODESYS Development System
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
CODESYS Development System
Constant: BOOL BOOL constants are the truth values TRUE (1) and FALSE (0). For more information, see: BOOL :
CODESYS Development System
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
CODESYS Development System
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
CODESYS Development System
String Constants A string constant is a string enclosed in single straight quotation marks. The characters are coded according to the character set specified in ISO/IEC 8859-1. Therefore, a string con
CODESYS Development System
Constant: UTF8# String With compiler version >= 3.5.18.0, UTF-8 encoded string literals are possible as a single-byte string with base STRING . Syntax: UTF8#' <string literal> ' Example 173 . Constant