Siemens Simatic S7-200 System Manual page 197

Example: Concatenate String, Copy String, and String Length Instructions
Before executing the program
VB0
6 'H' 'E' 'L' 'L'
After executing the program
VB0
11 'H' 'E' 'L' 'L'
VB100
11 'H' 'E' 'L' 'L'
AC0
11
Network 1 //1. Append the string at VB20
//
//2. Copy the string at VB0
//
//3. Get the length of the string
//
LD I0.0
SCAT VB20, VB0
STRCPY VB0, VB100
STRLEN VB100, AC0
VB6 VB20
'O' ' ' 5 'W'
'O' ' ' 'W' 'O' 'R'
'O' ' ' 'W' 'O' 'R'
S7-200 Instruction Set
to the string at VB0
to a new string at VB100
that starts at VB100
VB25
'O' 'R' 'L' 'D'
VB11
'L' 'D'
VB111
'L' 'D'
Chapter 6
6
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