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8.3.6.6
Set offline mode (SET_OFFLINE)
This call switches between online and offline mode.
The online mode is the normal operating state for the AS-i master. 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 sub-
mit 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 existing AS-i slaves are
searched and newly added AS-i slaves are entered in the LDS or LAS.
• In the management phase, jobs by the user such as writing parameters are ex-
ecuted.
In the offline mode, the AS-i/EtherNet/IP Gateway processes jobs by the user only.
(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.
When offline, the AS-i circuit is in a safe state.
The OFFLINE = TRUE bit is not permanently stored; in other words, following a
cold/warm restart, the AS-i/EtherNet/IP Gateway is once again in the online mode.
byte
1
2
3
byte
1
2
The master changes to the offline phase, if there is a 1 written in byte 3.
The master will change to online mode if there is a 0 written in byte 3.
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
7
6
5
2
2
2
T
–
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5
2
2
2
T
AS-i EtherNet/IP Gateway
Command Interface
Request
4
3
2
2
0A
16
circuit
Off-Line
Response
4
3
2
2
0A
16
result
Copyright Pepperl+Fuchs, Printed in Germany
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1
0
2
2
2
2
1
0
2
2
2
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