7 PROFIBUS DP Communication
7.3 SIMATIC S7 project
The user interface of "HW Config" mainly contains:
– Menu bar
– Station window
– Hardware catalog.
If the hardware catalog is not displayed, open it using the menu command
View > Catalog.
The station window is split. The upper part displays the structure of the station
graphically, and the lower part provides a detailed view of the selected module.
To check whether a module selected from the hardware catalog complies with
the module in the automation system, the following procedure is recom-
1. Put down the MLFB numbers of all modules used in the automation system.
2. Select the appropriate module from the hardware catalog and compare the
order number (MLFB) with the MLFB number of the module displayed in the
hardware catalog. Both MLFB numbers must be the same.
840Di Rack contains the already partially preset modules:
SINUMERIK 840Di PLC
standard designation: PLC315-2DP M/S 2AF03
PROFIBUS DP Master
standard designation: DP master
SINUMERIK 840Di NC
standard designation: S7 FM NCU.
The 840Di rack is to be found in the hardware catalog under:
SIMATIC 300 > SINUMERIK > 840Di > 840Di with PLC315-2AF03
Use the right mouse button to select 840Di Rack and drag it to the Station win-
dow, holding down the mouse button. When you release the mouse button,
840Di Rack will be inserted in the S7 project.
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition