Siemens SINAMICS S120 Installation And Start-Up Manual page 247

Comparison of topologies at Power On
Comparing the topologies prevents a component from being controlled/evaluated
incorrectly (e.g. drive 1 and 2).
When the drive system is started, the Control Unit compares the detected actual
topology and the electronic type plates with the target topology stored on the
CompactFlash card.
You can specify how the electronic type plates are compared for all the compo-
nents of a Control Unit via p9906. The type of comparison can be changed subse-
quently for each individual component. You can use p9908 for this or the right
mouse button in the topology view in the STARTER tool. All data on the electronic
type plate is compared by default.
The following data in the target and actual topologies is compared depending on
the settings made in p9906/9908:
S p9906/9908 = 0: component type, order number, manufacturer, serial number
S p9906/9908 = 1: component type, order number
S p9906/9908 = 2: component type
S p9906/9908 = 3: component class (e.g. Sensor Module or Motor Module)
Fig. 7-9
Notice
The Control Unit and Option Board are not monitored. The system automatically
accepts new components and does not output a message.
E Siemens AG, 2004. All rights reserved
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
Topology view in the STARTER tool
Basic Information about the Drive System
DRIVE-CLiQ topology
7-247