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Configuration, program blocks
3.1
Configuration in STEP 7
Configuration in STEP 7
You configure the CM in SIMATIC STEP 7. You will find the required version in the section
Project engineering (Page 17).
You will find complete information on configuration in the STEP 7 information system.
Loading and saving the configuration data
When you load the station, the project data of the station including the configuration data of
the CP is stored on the CPU. You will find information on loading the station in the STEP 7
information system.
3.2
Configuring in third-party systems
Configuring in third-party systems via GSD file
To allow configuration as DP slave in third-party systems, a GSD file is available. You will find
this on the following page of Siemens Industry Online Support:
Link: (https://support.industry.siemens.com/cs/ww/en/view/113652)
The protocol variant DP-V1 or DP-V0 is decided during operation by the setting of the
connected DP master.
3.3
Setting the PROFIBUS address from the user program
Writing the PROFIBUS address
As of firmware version V3.0 of the CM, you can set the PROFIBUS address of the CM in the
user program.
To do this, enable the following option in the configuration of the CM:
PROFIBUS interface > Advanced settings > Setting PROFIBUS address in the user program
When this option is enabled, the CM does not go to the bus at startup and the bus fault LED
lights up.
The CM becomes the bus node and the error message disappears only when the PROFIBUS
address has been written to the CM by the user program.
SIMATIC CM 1542-5
Operating Instructions, 01/2023, C79000-G8976-C290-07
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