Pepperl+Fuchs VBG-PB-K25 - Read Input Data Image (READ_IDI); Write Output Data Image (WRITE_ODI)

AS-Interface
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
68
8.2.5.3 Read Input Data Image (READ_IDI)
With this call, the input data values of all AS-i slaves are read out of the AS-i/
PROFIBUS gateway in addition to the cyclic data exchange. Though the com
-
mand READ_IDI transmits all execution control flags (byte 3 and byte 4).
Pok Periphery_Ok
S0 LDS.0
AAs Auto_Address_Assign
AAv Auto_Address_Available
CA Configuration_Active
NA Normal_Operation_Active
APF APF
OR Offline_Ready
Cok Config_Ok
8.2.5.4 Write Output Data Image (WRITE_ODI)
With this call the output data values of all AS-i slaves are written in addition to the
cyclic data exchange.
Request
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 41
16
2 T – circuit
Response
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 41
16
2 T result
3 – Pok
4 OR APF NA CA AAv AAs s0 Cok
5 – slave 1A
6 slave 2A slave 3A
… …
36 slave 30B slave 31B
Request
byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1 42
16
2 T – circuit
3 – slave 1A
4 slave 2A slave 3A
… …
34 slave 30B slave 31B