Moeller CM4-505-GV1, Hardware And Engineering

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AS-i/PROFIBUS Gateway Advanced Diagnostics for AS-i Masters
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6 Advanced Diagnostics for AS-i Masters
The advanced AS-i diagnostics serve 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" (software for the comfortable commissioning of the AS-Inter-
face and the programming of AS-i Control) support the operation of the advanced di-
agnostics (LCS, error counters and LOS).
6.1 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.
6.2 Error Counters: Counters 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 error counter is included in the command master | AS-i Diagnostics of "AS-i Con-
trol Tools".
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. If there was a
short-time AS-i power failure the display shows “39” after pressing the
“set” button.
This function is only available if device is in the normal operation mode
of the protected mode (display empty) or in the off-line-phase.
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.