CODESYS Development System
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
CODESYS Development System
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
CODESYS Development System
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. :
CODESYS Development System
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
CODESYS Development System
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
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Variables The scope of a variable defines how and where you can use a variable. You define the scope in the variable declaration. :
CODESYS Development System
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,
CODESYS Development System
Variable: VAR_OUTPUT Output variables are used at the outputs of function blocks. You declare VAR_OUTPUT variables between the VAR_OUTPUT and END_VAR keywords in the declaration part of POUs. The valu
CODESYS Development System
Variable: VAR_IN_OUT A VAR_IN_OUT variable is an input/output variable, which is part of a POU interface and serves as a formal pass-by-reference parameter. Syntax <keyword> <POU name> VAR_IN_OUT <var
CODESYS Development System
Variable: VAR_GLOBAL Important If a local variable that is declared in a block has the same name as a global variable, then it has precedence within the block. Important For compiler version 3.2.0.0 a