Siemens SIMATIC S7-200 System Manual page 199

Example: Concatenate String, Copy String, and String Length Instructions
Before executing the program
VB0
6 'H' 'E' 'L'
After executing the program
VB0
11 'H' 'E' 'L'
VB100
11 'H' 'E' 'L'
AC0
11
Network 1
LD
SCAT
STRCPY VB0, VB100
STRLEN VB100, AC0
VB6
'L' 'O' ' '
'L' 'O' ' ' 'W' 'O'
'L' 'O' ' ' 'W' 'O'
S7-200 Instruction Set
//1. Append the string at "WORLD"
// to the string at VB0
//2. Copy the string at VB0
// to a new string at VB100
//3. Get the length of the string
// that starts at VB100
I0.0
"WORLD", VB0
VB11
'R' 'L' 'D'
VB111
'R' 'L' 'D'
Chapter 6
185