Pepperl+Fuchs VBG-PB-K20-DMD-C1, Руководство пользователя

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AS-Interface
Command Interface
Subject to reasonable modifications due to technical advances. Copyright Fuchs, Printed in Germany
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
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10.5 Command Interface examples
You can find actual command interface examples in the download area of the
homepage.
10.5.1 Reading 16-bit input values
Command RD_7X_IN: Reading of 16-bit input values .
PROFIBUS DP V0: cyclic data exchange
Used ID/module in the GSD file: 12-byte management
Meaning of the bytes:
The call of the command interaface has not been answered with the valid values
since the toggle bit has not been set.
Set of toggle bit:
Response (bei O
≡
1)
Byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 7D
16
2 T result
3 0 1 2 3 4 5 6 7
… …
6 24 25 26 27 28 29 30 31
Request: RD_7X_IN
Byte 1 50
hex
(RD_7X_IN)
Byte 2 00
hex
(master 1, single master)
Byte 3 1D
hex
(slave address 29)
Byte 4 00
hex
… …
Byte 12 00
hex
Response
Byte 1 00
hex
(or old values)
Byte 2 00
hex
(or old values)
Byte 3 00
hex
(or old values)
Byte 4 00
hex
(or old values)
… …
Byte 12 00
hex
(or old values)
Request
Byte 1 50
hex
Byte 2 80
hex
(toggle bit, result)
Byte 3 1D
hex
(slave address 29)