Read_Acyclic_Trans - Pepperl+Fuchs VBG-PB-K20-DMD-C1 Manual

As-interface/profibus-gateway
Table of Contents

Advertisement

10.3.3.3 READ_ACYCLIC_TRANS

With this call the response of the transfer command (started with
WRITE_ACYCLIC_TRANS) is read out.
The first byte in the response buffer indicates the current command.
FF
means transfer still active, FE
16
The both following bytes (high,low) set the lenght of the response buffer.
It is always recommended to read the data starting with the index i = 0.
Byte
1
2
3
4
5
Byte
1
2
3
...
x
The response data have the same format, as by commands RD_74_75_PARAM,
RD_74_75_ID and „safety at work"-monitor diagnostics.
Subject to reasonable modifications due to technical advances.
76
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
7
6
5
2
2
2
Command Interface
means transfer interrupted with errors.
16
Request
4
3
2
2
4F
16
circuit
slave
buffer index (i) high
buffer index (i) low
Response
4
3
2
2
4F
16
response
data
...
data+n
AS-Interface
2
1
0
2
2
2
2
1
0
2
2
2
Copyright Pepperl+Fuchs, Printed in Germany

Advertisement

Table of Contents
loading

Table of Contents