AS-Interface
PROFIBUS DP
Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
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
Issue date - 21.12.2005
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7.1.3 I/O Data
7.1.3.1 Process data
In V2.1 mode the AS-i I/O data are mapped in the process data as known from the
Siemens and AS-i/InterBus masters. This means that the lower nibble describes
the data of the AS-i slave with the higher slave address. The ec-flags or hi-flags
are additionaly mapped at the nibble of AS-i slave 0.
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
0 flags slave 1/1A
F3 F2 F1 F0 D3 D2 D1 D0
1 slave 2/2A slave 3/3A
2 slave 4/4A slave 5/5A
3 slave 6/6A slave 7/7A
4 slave 8/8A slave 9/9A
5 slave 10/10A slave 11/11A
6 slave 12/12A slave 13/13A
7 slave 14/14A slave 15/15A
8 slave 16/16A slave 17/17A
9 slave 18/18A slave 19/19A
10 slave 20/20A slave 21/21A
11 slave 22/22A slave 23/23A
12 slave 24/24A slave 25/25A
13 slave 26/26A slave 27/27A
14 slave 28/28A slave 29/29A
15 slave 30/30A slave 31/31A
16 reserved slave 1B
17 slave 2B slave 3B
18 slave 4B slave 5B
19 slave 6B slave 7B
20 slave 8B slave 9B
21 slave 10B slave 11B
22 slave 12B slave 13B
23 slave 14B slave 15B
24 slave 16B slave 17B
25 slave 18B slave 19B
26 slave 20B slave 21B
27 slave 22B slave 23B
28 slave 24B slave 25B
29 slave 26B slave 27B
30 slave 28B slave 29B
31 slave 30B slave 31B
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