ifm
Device manual AS-i M4 Gateway Profibus DPV1 (AC1375, AC1376)
2012-02-23
Acyclic services for Profibus DPV1
Acyclic command in the DPV1 command channel
361
Response from device to fieldbus master
Bit
Offset
Word no.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
reflected user ID
Command status (
→
page
) = 6F
hex
2
TG
S
reflected slave address
F=0
reflected command number
3
parameter byte 1
parameter byte 0
4...16
parameter bytes 2...27
17
parameter byte 29
parameter byte 28
18
reserved = 0
number of bytes received
19
not changed*)
not changed*)
Legend:
TG
toggle bit
1 bit
value changes for each execution of the command
S
sequence bit
1 bit
a large data packet is transmitted in several partial sequences:
0 = data transmission completed
1 = data transmission not yet completed, at least one more packet follows
F
error bit
1 bit
0 = no error detected
1 = error when executing the command
*)
IMPORTANT:
For the query read only the required bytes!
Unused bytes can contain information of previous queries.
Info
The control bytes defined in profile 7.4 with follow and valid bits are filtered out by the system.
