Setting The Profibus Address; Creating A Step 7 Project - Siemens SINAMICS G120 CU240B-2 Operating Instructions Manual

6.3.1.3

Setting the PROFIBUS address

Setting the PROFIBUS address of the inverter
The inverter's PROFIBUS address is set using DIP switches on the Control Unit or using
p0918. Using p0918, the address can only be set if all DIP switches for the bus address are
either set to "OFF" (0) or to "ON" (127).
If the address switches are set to a value ≠ 0 or 127, this address is always active and
p0918 is read-only.
The setting using DIP switches is described in Setting the bus address via DIP switch
(Page 104).
Valid PROFIBUS addresses:
Invalid PROFIBUS addresses:
CAUTION
A bus address that has been changed is only effective after switching-off and switching-on
again. It is particularly important that any external 24 V supply is switched off.
6.3.1.4

Creating a STEP 7 project

PROFIBUS communication between the inverter and a SIMATIC control is configured using
the SIMATIC STEP 7 and HW Config software tools.
Procedure
● Create a new STEP 7 project and assign a project name, e.g. "G120_in_S7". Add an S7
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
300 CPU.
Figure 6-1 Inserting a SIMATIC 300 station into a STEP 7 project
1 ... 125
126, 127
Connection to a fieldbus
6.3 Communication via PROFIBUS
107