Siemens SINUMERIK 840D sl Commissioning Manual

6.3.36 STRING functions
Overview
The following functions enable strings to be processed:
● Determine length of string
● Find a character in a string
● Extract substring from left
● Extract substring from right
● Extract substring from mid-string
● Replace substring
● Compare strings
● Insert a string in another string
● Remove a string from a string
● Remove spaces (from left or from the right)
● Insert values or strings with formatting identifiers
LEN function: Length of a string
Syntax: LEN (string | varname)
Description: Determines the number of characters in a string
Parameters: string Every valid string expression. NULL is output if string is
empty.
varname Any valid declared variable name
Only one of the two parameters is allowed.
Example
DEF VAR01
DEF VAR02
LOAD
VAR01="HALLO"
VAR02=LEN(VAR01) ; Result = 5
END_LOAD
INSTR function: Search for character in string
Syntax: INSTR (Start, String1, String2 [,Direction])
Description: Searches for characters
Programming commands
6.3 Functions
SINUMERIK Integrate Run MyScreens (BE2)
182 Programming Manual, 12/2017, 6FC5397-1DP40-6BA1

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based