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

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

Constant: Character The character literal for a single Unicode character has the base type UDINT . The type prefix UCHAR# is prefixed to the literal as an identifier. The numerical value of the charac

Constant: TIME, LTIME You can use TIME constants to operate the standard timer modules. The constant has a size of 32 bits and a resolution in milliseconds. In addition, the time constant LTIME is ava

Constant: Date and Time 32-bit date specification: DATE Use the DATE keyword ( D ) to specify a date. Syntax <date keyword>#<year>-<month>-<day> <date keyword> : DATE | date | D | d <year> : 1970-2106

ST Statement: EXIT The EXIT statement is used in a FOR loop, WHILE loop, or REPEAT loop in order to end the loop regardless of other abort conditions. :

EXST Statement: CONTINUE CONTINUE is an statement of the Extended Structured Text (ExST). The statement is used inside a FOR loop, WHILE loop, or REPEAT loop in order to jump to the beginning of the n

ST Function Block Call Calling a function block in ST Syntax <FB instance>(<FB input variable>:=<value or address>\|, <other FB input variables>); Example 67 . Example TMR:TON; TMR (IN:=%OX5, PT:=T#30

Variables The scope of a variable defines how and where you can use a variable. You define the scope in the variable declaration. :