AS-i/PROFIBUS Gateway
Appendix: AS-i Slave Lists and Data Telegrams
Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group · Tel.: Germany (621) 776-0 · USA (330) 4253555 · Singapore 7799091 · Internet http://www.pepperl-fuchs.com
issue date 12.10.1999
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Bit 0 (Off-line):
0 = The AS-i Master leaves the off-line phase.
1 = The AS-i Master is switched to the off-line phase.
Bit 1 (Auto_adress_enable):
0 = activates automatic slave addressing
1 = inhibits automatic slave addressing
Bit 2 (Configuration mode):
Changing the state of this bit from 0 to 1 puts the device into the configu-
ration mode.
Bit 3 (Protected mode):
Changing the state of this bit from 0 to 1 puts the device into the protected
mode.
11.3.2 Data Window for Transmission of AS-i Parameters in Advanced Mode
If in advanced mode in the byte element selection the bit for the transmission of AS-i
parameters is set, the DP I/O window is enlarged by 2 bytes. These bytes are added
to the window of the input or output data.
Structure of the bytes
DP master call:
DP slave answer: (AS-i/PROFIBUS-Gateway)
If the bit 7 in the answer byte is set, the corresponding AS-i slave could not be param-
eterized.
11.3.3 Transmission Window for AS-i Control Code in Advanced Mode
In advanced mode the additional bytes for the transfer of AS-i Control code (control
program) are filed behind the I/O data and possible AS-i parameter data in the DP-
telegram.
The length of the AS-i Control-code window is specified in the parameterization tele-
gram. It amounts between 5 and 17 bytes.
States of the Control byte:
00
hex
: Read AS-i Control flags
80
hex
: Write AS-i Control flags
81
hex
: Download
byte 0 byte 1
0 0 0 bit4 bit3 bit2 bit1 bit0 0 0 0 0 bit3 bit2 bit1 bit0
AS-i slave address answer of the AS-i slave
byte 0 byte 1
0 0 0 bit4 bit3 bit2 bit1 bit0 Err 0 0 0 bit3 bit2 bit1 bit0
AS-i slave address answer of the AS-i slave
control byte address byte 0 address byte 1 data byte 0 ... data byte 13
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