AS-Interface
EtherNet/IP Interface
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 - 24.4.2007
134
16-bit values:
16-bit data:
In addition to the access via the command interfaces, the 16-bit data for or by the
slaves with 16-bit value can by exchanged cyclically (profile 7.3., S-7.4, S-6.0, S-
7.5, S-7.A.8, S-7.A.9, S-7.A.A). Competing writing access attemps on 16-bit out-
put data will not be blocked by every other. If 16-bit data for a particular slave are
being transmitted both cyclically and acyclically with the command interface or via
DP V1 connections, the acyclically transmitted values will be overwritten by the cy-
clically transmitted values.
AS-i 16-bit data can be transmitted in a reserved data area. Therefore accessing
16-bit data is as easy as accessing digital data.
16-bit values
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
A-Slaves map the data on channels 1 and 2.
B-Slaves map the data on channels 3 and 4.
16-bit data
Byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 Slave 31-n/8, channel 1, high byte
2 Slave 31-n/8, channel 1, low byte
3 Slave 31-n/8, channel 2, high byte
4 Slave 31-n/8, channel 2, low byte
……
n-3 Slave 31, channel 3/Slave 31B, channel 1, high byte
n-2 Slave 31, channel 3/Slave 31B, channel 1, low byte
n-1 Slave 31, channel 4/Slave 31B, channel 2, high byte
n Slave 31, channel 4/Slave 31B, channel 2, low byte
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