Siemens Commissioning PC Stations C79000-G8976-C156-07 - Manual (Page 17)

1 Welcome to Advanced PC Configuration
17
Commissioning PC Stations - Manual and Quick Start
Release 5/2005
C79000-G8976-C156-07
Index for Every Component
To allow communication between the components in the PC station and to receive
project engineering data, each component is assigned a unique identification
number. The identification number for modules, applications, and other
components in a PC station is the index. Analogous to the slot of a module in an
S7-400 controller, the index corresponds to a virtual slot in a PC station.
Note
Be careful not to confuse this “index” with a hardware slot, for example on the PCI
bus of the computer. The slot on the PCI bus is not relevant for commissioning
and is not used at any point.