
A−146
S7-CPs for PROFIBUS Configuring and Commissioning
Release 09/2011
C79000−G8976−C181−05
7 Configuring FDL Connections / Programming
the SEND/RECEIVE Interface
FDL connections with the PROFIBUS CP allow program-controlled communication
on PROFIBUS between SIMATIC S7 PLCs and the following:
SIMATIC S7 PLC with PROFIBUS CP
SIMATIC S5 with PROFIBUS CP (for example 5430/31)
SIMATIC S5-95 U with PROFIBUS interface
PC/PG with PROFIBUS CP (CP 5613)
Devices capable of the SDA and SDN service complying with EN 50170, Vol. 2
This chapter explains the following:
The characteristics of an FDL connection.
Which data areas can be used on the S7 CPU.
How to program the SEND/RECEIVE interface in the user program.
You will find further information in the following sources:
You will find detailed explanations of how to configure connections in STEP 7:
Help
Contents.
The FCs for programming FDL connections are described in /6/
In the PROJECT_PROFIBUS sample project that you can start after installing
NCM S7; you will find a description of this in the primer “Getting Started” /5/.
For programming and configuring stations for FDL connections (for example a
SIMATIC S5 PLC with the CP 5430/31, SIMATIC S5-95U with a PROFIBUS
interface, PCs with a CP CP 5613), please refer to the appropriate manuals.
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