FD67 Profibus-DP Manual
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5.3.4 Configuration examples
Configuration examples with hardware manager Simatic Step 7.
5.3.4.1 Configuration of compact modules
This configuration is made up of two compact modules connected to the sockets 0 and 1 of the internal
system connection of the bus node.
In this type of configuration, there is no direct relationship between the module position in the
configuration table (connector) and the actual location on the bus (string/position in the string). Instead of
connecting the modules to the sockets 0 and 1 of the bus node, you could as well connect them to the
connectors 1 and 3. You can determine the sequence and correspondence between configured modules
and modules detected by the bus node at system startup.
Note :
A simple solution consists in integrating placeholders for a better general
arrangement of the configuration and a clear relationship between the connector and
actual module position. Configuration can be easily extended at a later date by
replacing the corresponding placeholder, without any interaction on other configured
modules (e.g. they keep their module number for diagnosis).