Siemens SINUMERIK, Commissioning Manual

Page: 451 / 736

Programming
2.7 Functions
Expanding the user interface
Commissioning Manual, 11/2006, 6FC5397-0DP10-0BA0
2-101
String2 Chain of characters in which the search is being
made
Direction (optional) Direction in which the search is being made
0: From left to right (default setting)
1: From right to left
0 is returned if string1 does not occur in string2.
Example
DEF VAR01
DEF VAR02
LOAD
VAR01="HELLO/WORLD"
VAR02=INST(1,"/",VAR01) ; Result = 6
END_LOAD
LEFT Function: String from left
Syntax: LEFT
(string, length)
Description: LEFT returns a string containing the specified number of characters
starting from the left-hand side of a string.
Parameters: string Character string or variable with the string to be
processed
length Number of characters that are to be read out
Example
DEF VAR01
DEF VAR02
LOAD
VAR01="HELLO/WORLD"
VAR02=LEFT(VAR01,5) ; Result = "HELLO"
END_LOAD