Issue date: 17.4.2009
148
Subject to reasonable modifications due to technical advances. © Pepperl+Fuchs, Printed in Germany
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AS-i 3.0 EtherNet/IP Gateway with integrated Safety Monitor
Glossary
17. Glossary
A/B slave
An AS-i slave with extended addressing. The address range of an A/B slave ex-
tends from 1A to 31A and 1B to 31B.
AS-i Power Fail
Voltage below the threshold on the AS-i cable.
Complete configuration
Counterpart to ⇒ master configuration. Release configuration including code se-
quences. The device is always usable.
EDM (External Device Monitoring, feedback circuit)
Used for monitoring the switching function of the contactors connected to the
Safety Monitor, whereby the normally closed contacts (forced-opening when pos-
sible) are fed back to the start circuit of the Safety Monitor. A restart is then only
possible if the normally closed contacts are closed (in the quiescent state).
ID code
The ID code is set by the slave manufacturer and cannot be changed. The AS-i
Association determines the ID codes which are assigned for a particular class of
slaves. For example, all ⇒ A/B slaves have ID code “A“.
ID1 Code, extended ID1 code
The ID1 code is set by the slave manufacturer. In contrast to the other codes,
which determine the profile, it can be changed from the master or using an ad-
dressing device. The user should however only use this feature in exceptional cir-
cumstances, since otherwise configuration errors may occur.
In the case of A/B slaves, the MSB of the ID1 code is used for distinguishing be-
tween the A and the B address. Therefore, only the lowest 3 bits are relevant for
these slaves.
Since this code was not introduced until AS-i Specification 2.1, it is also referred
to as extended ID1 code.
ID2 Code, extended ID2 code
The ID2 code is set by the slave manufacturer and cannot be changed. The AS-i
Association determines the ID2 codes, which are assigned for a particular class
of slaves. For example, all 2-channel 16 bit input slaves having an S-16 bit code
use ID2 code “D”. Since this code was not introduced until AS-i Specification 2.1,
it is also referred to as extended ID2 code.
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