AS-i/PROFIBUS Gateway Operating the AS-i/PROFIBUS Gateway
Subject to reasonable modifications due to technical advances Copyright Bihl+Wiedemann, Printed in Germany
Bihl+Wiedemann GmbH · D-68199 Mannheim · Phone +49-621-339960 · Fax +49-621-3392239 · Internet http://www.bihl-wiedemann.de
issue date 7.1.2002
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Any errors will be displayed by their error codes according to chapter 10. Otherwi-
se, the detected slaves are displayed again as described in chapter 5.3..
5.5.2 Erasing the Slave Address
(assigning address zero to a detected slave)
In configuration mode, the addresses of all recognized slaves are displayed one
after the other. By pressing and releasing the “set” button, the master displays the
next available address. If you press the button for more than five seconds while
the address of a detected slave is displayed, this slave will get the address zero
and the display shows “00”.
When you release the button, the display continues to display the detected slaves.
5.6 Programming the Address in Case of Configuration Errors
5.6.1 Automatic Address Assignment
For automatic programming to work, some requirements must be met:
1.The AS-i master must be in the protected operating mode.
2.The “Auto_Address_Assign”
1
release flag must be set.
3.Only one of the projected slaves may not be detected.
If these requirements are met, the AS-i master’s “prg enable” LED lights up and
a slave with address zero will be automatically assigned to the operating address
Only slaves with address 0 can get a new address by the master.
There must not be two AS-i slaves with the same adrress on the
AS-i circuit.
One of AS-i’s great advantages is the automatic address assign-
ment. If a slave fails, it can be replaced by one of the same type with
address zero. The master will detect the replacement and automati-
cally addresses the new slave with the address of the faulty one.
1. By deletion of flag "Auto_prog" the user can close "automatic addressing".
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