Configuring Hardware and Communication Connections STEP 7.pdf

Editing a Station in NetPro
Networking Stations
If you double-click an area of the station symbol you can further edit the station:
Color Coding in the Network View
After their configurations have been changed (in NetPro or in HW Config), S7
stations are color-coded to indicate their status:
• An orange-colored S7 station means that the configuration was changed (i.e.
that the changes have to be compiled).
• An red-colored S7 station means that the changed configuration is not
consistent and thus cannot be compiled. In this case, you will have to eliminate
the errors detected and logged during a consistency check.
An inconsistent station is colored red only after a consistency check has been
carried out; that is, after you have selected the Network > Check Consistency
or Network > Save and Compile menu command.
The red color coding is not saved when the station is saved. This means that
this color coding will be current and complete only after a consistency check
has been carried out again.
STEP 7 does not detect every need for a compilation after the configuration has
been changed:
• If more than one master is connected to a PROFIBUS subnet and a slave that
causes a change in the bus parameters is being connected to the subnet: The
need for a compilation is only detected for the station of the master system to
which the newly added slave is assigned. The other master system that is also
connected to the same PROFIBUS subnet will not be color coded.
• If you change the node address of an interface in an S7 station and this station
functions as a router (S7 routing) for accesses by programming devices (PG):
In this case, the other S7 stations on the subnet will also have to be compiled
and downloaded so that they receive the routing information. However, these
stations will not be color coded.
Configuring Hardware and Communication Connections with STEP 7
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