Siemens SINAMICS G110D Operating Instructions Manual page 169

Image 6-32 Single Slave Internal data flow
Dual slave mode
In the dual slave mode the Inverter appears as two logical slaves on the AS-i bus, although
the slaves are actually contained within the same unit.
The first slave (Slave 1), utilizes the combined transaction type 2 (CTT2) protocol to allow
both cyclic and acyclic transter of parameter data to and from the master as well as digital
process data.
The second slave (Slave 2) transfers further process data and allows access to basic
diagnostic information through the reply to a parameter request.
SINAMICS G110D
Operating Instructions, 07/2016, FW V3.63, A5E36768472B AB
6.11 Operation in fieldbus systems
Functions
169