Table of Contents
Advertisement
10.3.2.4 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.
byte
1
2
3
4
byte
1
2
3
...
n+2
By a 7.5 slave is the request always 1. The response byte contains the cyclic 16-
bit slave configuration according to S-7.5 profile (analog/transparent bits are can-
celled). If the response is 08h, that means that the cyclic 16-bit configuration could
not be detected.
10.3.2.5 RD_74_DIAG
With this function the diagnosis string of a slave according to profile S-7.4 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 be read in parts from indexi.
The first byte of the buffer indicates 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.
byte
1
2
3
4
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
–
7
6
5
2
2
2
T
7
6
5
2
2
2
T
–
AS-i/PROFIBUS-Gateway
Command Interface
Request
4
3
2
2
5C
16
circuit
slave address
i
Response
4
3
2
2
5C
16
result
buffer byte i
...
buffer byte i+n-1
Request
4
3
2
2
5D
16
circuit
slave address
i
Copyright Pepperl+Fuchs, Printed in Germany
2
1
0
2
2
2
2
1
0
2
2
2
2
1
0
2
2
2
73
Advertisement
Table of Contents
