Profibus Interface In Operation - Siemens Sinamics S120 Function Manual

Communication
10.2 Communication via PROFIBUS DP
Note
The rotary coding switches used to set the PROFIBUS address are located beneath the
blanking cover Auto-Hotspot.
Note
Address 126 is used for commissioning. Permitted PROFIBUS addresses are 1 ... 126.
When several Control Units are connected to a PROFIBUS line, you set the addresses
differently than for the factory setting. Each PROFIBUS address in a PROFIBUS line can
only be assigned once. Either set the PROFIBUS address in absolute terms using the rotary
coding switches – or selectively in parameter p0918. Each change made to the bus address
is not effective until POWER ON.
The currently set address of the rotary coding switch is displayed in parameter r2057.
Note
Only values from 1 to 126 (7E
are set, then the set value is interpreted as "0". If a value "0" or "127" is set, the value in
parameter p0918 defines the PROFIBUS address.
10.2.2.2

PROFIBUS interface in operation

Generic station description file
A generic station description file clearly and completely defines the properties of a
PROFIBUS slave.
602
) are valid for PROFIBUS addressing. If values above 127
hex
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Drive functions