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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Start of Normal Operation
In normal operation the AS-i master can exchange data with all active
slaves. It transmits management messages and looks for and activates
newly connected slaves. During normal operation, the system keeps the
maximum cycle time of 5 milliseconds.
5.3 Configuration Mode
The configuration mode serves to configure the AS-i circuit.
Pressing the “mode” button for at least five seconds switches the master to confi-
guration mode. While in configuration mode, the yellow “prj mode” LED lights up.
The system then displays one after the other all detected slaves at a speed of two
per second. First all "A" slaves and afterwards all "B" slaves. If the display is em-
pty, no slaves were detached on the AS-i circuit.
In configuration mode, all recognized slaves are activated except of slave zero.
The AS-i master is in normal operation. There is data exchange between the AS-i
master and all AS-i slaves detected by the master regardless of whether the de-
tected AS-i slaves were projected before.
5.4 Protected Operating Mode
5.4.1 Switching to Protected Operating Mode
The configuration mode can be left by pressing the “mode” button.
Pressing the button shortly:
Exits the configuration mode without projecting the current AS-i configuration.
Pressing the button for more than five seconds:
Exits the configuration mode and projects the actual AS-i configuration. Simul-
1. Activation phase and the start of normal operation maybe so short that the numbers can not be seen in the display.
In the configuration mode, all recognized slaves are activated even
when the desired and actual configurations do not match.
When delivered the device is in configuration mode.
In contrast with the configuration mode in the protected mode there
is only data exchange between the AS-i master and the projected
AS-i slaves.
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