AS-i/PROFIBUS Gateway PROFIBUS-DP
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
73
In the configuration mode, all detected AS-i slaves (except for AS-i slave "0") are
activated. This also applies to AS-i slaves in which there are differences between
the expected and actual configuration.
The “OPERATION MODE” bit is stored permanently; in other words, it is retained
following a cold/warm restart.
When you change from the configuration mode to the protected mode, there is a
warm restart on the AS-i master (change to the offline phase followed by a change
to the online mode).
Meaning of bit operation mode:
0 = protected mode
1 = configuration mode
8.3.2.19 SET_OFFLINE
This call switches between the online and offline mode.
The online mode is the normal operating situation for the AS-i master. Here, the
following jobs are processed cyclically:
• During the data exchange phase, the fields of the output data are transferred to
the slave outputs for all AS-i slaves in the LAS. The addressed AS-i slaves
transfer the values of the slave inputs to the master when the transfer was free
of errors.
• This is followed by the inclusion phase in which there is a search for the existing
AS-i slaves and newly added AS-i slaves are entered in the LDS or LAS.
• In the management phase, jobs from the user such as writing parameters are
executed.
In the offline mode, the AS-i/PROFIBUS Gateway only processes jobs from the
user. (Jobs that involve the immediate addressing of an AS-i slave are rejected
with an error.) There is no cyclic data exchange with the AS-i slaves.
If an AS-i slave with address "0" is entered in the LDS, the
AS-i/PROFIBUS Gateway cannot change from the configuration
mode to the protected mode.
Request
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
10C
16
2T – circuit
3 operation mode
Response
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
10C
16
2T result
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