Pepperl+Fuchs VBG-PB-K25 - Rd_74_75_Id

AS-i/PROFIBUS Gateway
Command 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 - 21.12.2005
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Since the string can be longer than the command interface, it is written into the
buffer. The content of the buffer can read in parts from index i.
The first byte of the buffer is the length of the read string.
If i ≡ 0, the string is being read from the slave, otherwise the function responses
out of the memory; the data can be read consistently.
8.2.1.12 RD_74_75_ID
With this function the ID string of a slave according to profile S-7.4 or the 16-bit
slave configuration according to profile 7.5 is being read. Since the string can be
longer than the command interface, it is written into the buffer. The content of the
buffer can read in parts from index i.
The first byte of the buffer is the length of the read string.
If i ≡ 0, the string is being read from the slave, otherwise the function responses
out of the memory, the data can be read consistently.
Request
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 5B
16
2 T – circuit
3 slave address
4 i
Response
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 5B
16
2 T result
3 buffer byte i
… …
n+2 buffer byte i+n-1
Request
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 5C
16
2 T – circuit
3 slave address
4 i