WLEFT
The function WLEFT supplies a left-hand start string for a WSTRING.
WLEFT (STR, SIZE) means: Take the first SIZE characters from the left in WString STR.
FUNCTION WLEFT: WSTRING (255)
VAR_INPUT
STR : WSTRING(255);
SIZE : INT;
END_VAR
Example in IL:
LD “SUSI“
WLEFT 3
ST Var1 (*Result is “SUS“*)
Example in ST:
Var1 := WLEFT (“SUSI“,3);
Requirements
|
Development environment |
Target system type |
PLC libraries to be linked |
|---|---|---|
|
TwinCAT v3.0.0 |
PC or CX (x86) |
Tc2_Standard |