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Advanced Diagnostics for AS-i Masters
The advanced AS-i diagnostics serves to locate occasionally occurring errors and to
judge the quality of data transmission on AS-i without additional diagnostics tools.
The AS-i Control Tools, Bihl+Wiedemann's software for the comfortable commission-
ing of the AS-Interface and the programming of AS-i Control, will include the operation
of the Advanced Diagnostics from version 3.0 on.
7.1
List of Corrupted AS-i Slaves (LCS)
To locate occasionally occurring short-time configuration errors the AS-i Masters with
advanced diagnostics manage beside the list of projected slaves (LPS), the list of de-
tected slaves (LDS) and the list of activated slaves (LAS) a forth list, the list of cor-
rupted slaves (LCS). This list contains entries of all AS-i slaves which were
responsible for at least one configuration error since powering up the AS-i master or
reading the list. Short-time AS-i power failures are represented in the LCS at the po-
sition of AS-i slave with address 0.
With every read access the LCS will be deleted.
The last short-time configuration error can also be displayed on the AS-i
Master:
Pressing the "set" button of the AS-i Master shows the AS-i slave which
was responsible for the last short-time configuration error. Was there a
short-time AS-i power failure the display shows "39" after pressing the
"set" button.
7.2
Error Counter: Counter of corrupted data telegrams
The AS-i Master with advanced diagnostics has an error counter for each AS-i slave,
which is increased every time there is a corrupted AS-i telegram. This makes it pos-
sible to judge the quality of the AS-i network, even if only a few corrupted telegrams
occurred and the AS-i slave did not cause any configuration errors.
The counter values can be read via the host interface and will be
deleted with every read access. The counter value is limited to 254. 255
means counter overflow.
The error counter is included in the command Master | AS-i Diagnostics of AS-i Con-
trol Tools version 3.0.
7.3
Off-line Phase on Configuration Errors
The AS-i Masters with advanced diagnostics offer the possibility to put themselves
into the Off-line Phase when a configuration error on the AS-Interface occurs. In this
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group · Tel.: Germany (6 21) 7 76-0 · USA (3 30) 4 25 35 55 · Singapore 7 79 90 91 · Internet http://www.pepperl-fuchs.com
AS-i/PROFIBUS Gateway
Advanced Diagnostics for AS-i Masters
Copyright Pepperl+Fuchs, Printed in Germany
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