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Acyclic Communication; Communications Via As-i - Siemens Sinamics G110M Original Instructions Manual

Distributed converter for simogear geared motors.
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Configure fieldbus

7.5 Communications via AS-i

You can find more information in: "Manuals for your inverter in the fieldbus function manual
(Page 334)".

Acyclic communication

The inverter supports the writing and reading of parameters via acyclic communication:
Acyclic communication via data set47:
up to 240 bytes per write or read request
Acyclic communication via B02E hex and B02F hex
More information on acyclic communication can be found in the Fieldbus function manual;
see also Section: Manuals for your converter (Page 334).
Communications via AS-i
General information
The inverter operates based on the extended AS-i specification V3.0.
The signaling is made as Manchester-coded current pulses superimposed on the 28 V
supply. Decouple the 28 V supply with inductances so that the receivers can decouple the
transferred messages.
The Control Unit power consumption is approx. 90 mA provided you do not use any digital or
analog inputs. When you use digital and analog inputs, the power requirement can be as
high as 300 mA.
The inverter supports the Single Slave and Dual Slave modes.
In Single Slave mode, the inverter has an address in the AS-i network over which four bits
are transferred. In Dual Slave mode, each inverter has two AS-i addresses over each of
which four bits are transferred.
In Single Slave mode, the communication is made in accordance with protocol 7.F.E; in Dual
Slave mode, the communication is made in accordance with protocols 7.A.5 and 7.A.E.
Default settings for commissioning
To configure the communication of the inverter via AS-i, the following possibilities are
available for commissioning the inverter:
● Default setting 30 - Single Slave mode, standard addressing
Single Slave mode with specification of a fixed frequency via the control
● Default setting 31 - Dual Slave mode with fixed setpoints
Dual Slave mode with specification of a fixed frequency via the control
SINAMICS G110M Operating Instructions
Operating Instructions, 04/2015, FW V4.7.3, A5E31298649B AD


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