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Connection to a fieldbus
6.3 Communication via PROFIBUS
Inverter with CU240B-2 and CU240E-2 Control Units
108
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
● Select the SIMATIC 300 station in your project and open the hardware configuration (HW
Config) by double clicking on "Hardware".
● Add an S7 300 mounting rail to your project by dragging and dropping it from the
"SIMATIC 300" hardware catalog. Locate a power supply at slot 1 of the mounting rail
and a CPU 315-2 DP at slot 2.
When you add the SIMATIC 300, a window is displayed in which you can define the network.
● Create a PROFIBUS DP network.
Figure 6-2
Inserting a SIMATIC 300 station with PROFIBUS DP network
6.3.1.5
Inverter GSD
In STEP 7, the inverter can be connected to an S7 control in two ways:
1.
Using the inverter GSD
The GSD is a standardized description file for a PROFIBUS slave. The GSD is used by
all controls, which are the PROFIBUS master.
You have two options to obtain the GSD for your inverter:
– You can find the SINAMICS inverter GSD on the Internet
(
– The GSD is saved in the inverter. The GSD is written to the memory card if you insert
the memory card in the Control Unit and set p0804 to 12. Using the memory card, you
can then transfer the GSD to your PG/your PC.
2.
Using the STEP 7 object manager
This somewhat more user-friendly method is only available for S7 controls and installed
Drive_ES_Basic.
The following section describes how to configure the inverter using the GSD.