Send/Receive Interface In The User Program - Siemens SIMATIC NET S7-300 Manual

4 SEND/RECEIVE Interface in the User Program

This chapter explains the following:
S How to send and receive data.
S Which data areas can be used on the S7 CPU.
S How to program the SEND/RECEIVE interface in the user program.
You will find further information in the following sources:
S For programming and configuring nodes for connections (for example a
SIMATIC S5 PLC with the CP 1430 TCP, PC with CP 1613), please refer to the
appropriate manuals.
S The FCs for programming connections are described in Section 7.3.
S Configuring the Ethernet CP with NCM S7 is described in Chapter 5.
S Programming communication connections over the interface in the user
program is described in Chapter 6.
Sample programs:
Sample configurations and programs are available for the SEND/RECEIVE
interface described here:
S In the sample project PROJECT_ETHERNET that you can start immediately
after installing NCM S7; for a description, refer to the Primer.
S On the Internet as downloadable sample projects; refer to the information in
Appendix C "Support and Training".
A-90
The Quick Start CD that can be ordered separately is a
treasure-trove of sample programs and configurations.
You can order this directly over the Internet at:
http://www4.ad.siemens.de/WW/news/e n/21827955
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07