Application Samples - Siemens SIMATIC S7 Manual

7

Application Samples

General
Information
Programming
Example
OPEN MODBUS / TCP communication via CP343-1 and 443-1
2XV9450-1MB00; Manual edition 4.3
With the installation 2 sample projects are installed in \Program
Files\Siemens\Step7\Examples.
•
sample project "MB_TCP_CP" written in STL and
•
sample project "MB_TCP_CP_CFC" written in CFC
The S7 programs are for information purposes only and are not to be
understood as a solution for a customer specific installation configura-
tion.
The programming examples consist of the blocks:
• Start-Up OB100
• Programming error OB121
• Cyclic program processing OB1 and OB35 respectively with call of FB 108
• Global DB for job trigger (e.g. via a variable table) and for licensing
• Data blocks for register values
Application Sample
7-1