Siemens SINAMICS G110D Operating Instructions Manual page 171

Addressing
The Inverter use a standard M12 connector for connection to the AS-i bus. Since the
connection between the inverter and bus is a spur, the Inverter can be disconnected from the
bus, the addresses reassigned, and the inverter reconnected without interrupting
communications elsewhere on the bus.
Auto addressing
Both slaves within the Inverter have the normal AS-i default address of '0'. When connected
to the AS-i bus slave 1 will be visible to the AS-i master. This allows the master to find the
Slave 1 and assign it an appropriate AS-i node ID on the connection AS-i network. When
Slave 1 has been assigned an address, Slave 2 becomes visible to the AS-i network and can
then be automatically assigned a node ID by the AS-i master.
Auto addressing (during commissioning)
During commissioning (If auto-addressing is used) all slaves receive an address from the
AS-i master one after another.
If the AS-i master detects a slave with address 0, it automatically assigns an address to that
device and integrates the device into the AS-i network.
The automatic address assignment and integration only works as long as one slave with
address 0 is present on the AS-I master at a time. The inverter has 2 slave addresses,
however the slave 1 will be hidden until the slave 2 has been assigned.
If there are more slaves with address 0, the automatic addressing is deactivated by the AS-i
master and integration into the AS-i network is not possible. This is standard behaviour
within AS-I networks.
Auto programming (during exchange of defective units)
If a inverter fails and is removed from the AS-i network, the AS-i master will detect that two
addresses are missing from the bus.
In case of two unassigned AS-i addresses the AS-i master cannot guarantee the re-
addressing of the slaves as per the original configuration of that AS-i network by auto-
programming.
The automatic addressing is deactivated by the AS-i master and integration into the AS-i
network is not possible. This is standard behaviour within AS-I networks.
In such a case, the addresses have to be set manually (using STARTER, IOP, an AS-i
programming device, or manually using the AS-i master).
Setting the slave addresses to 0
If the addresses are set to 0 on the Inverter it is necessary to power-cycle of the AS-i bus (or
by physically disconnecting and reconnecting the slave).
SINAMICS G110D
Operating Instructions, 07/2016, FW V3.63, A5E36768472B AB
6.11 Operation in fieldbus systems
Functions
171