Setting The As-I Address - Siemens SIRIUS M200D Manual

Mounting/Connecting
4.1 Mounting
4.1.6

Setting the AS-i address

Unique addressing
In the factory setting, an I/O module (slave) has the address 0. It is detected by the master
as a new slave that has not yet been addressed and, in this condition, has not yet been
integrated in standard communication/data exchange.
To enable data to be exchanged between the master and slaves, you have to assign a
unique address for each slave (i.e. each slave address must be different) when
commissioning the AS-Interface network.
You can select any address in the address space from 1A to 31A and 1B to 31B.
Thus a maximum of 62 nodes are possible in one AS-Interface network.
Where the M200D AS-i Standard motor starter is concerned, on account of the two slaves
this means that you can operate a maximum of 31 devices on a master.
Addressing the slaves
You can set the slave address in different ways:
● Offline with the addressing unit at the AS-i connection.
Recommended if you want to assign addresses for the entire system. The direct
connection between the slave (motor starter) and addressing unit ensures that the slaves
are not mixed up.
● Online by the AS-i master or in the PLC configuration software.
Recommended if you want to assign addresses to individual slaves if an addressing unit
is not available.
Before assigning addresses, you must ensure that each address exists only once in the
AS-i network, that is, several new, additional modules (with address 0 in as-delivered
condition) must not be connected to the AS-i cable.
● Online with Motor Starter ES (via optical interface, not via AS-Interface)
As soon as you have assigned a valid address outputs can be set or inputs read that result
in follow-up switching operations. To prevent a hazardous condition switch off the voltage
U
AUX
94
CAUTION
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M200D AS-Interface Standard
Manual, 08/2014, A5E02548958A/RS-AA/004