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
336
12.8.7
Acyclic command 07 – set the autoaddress mode of the
AS-i master
5870
Request from fieldbus master to device
Bit
Offset
Word no.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
UID
command request = 65
hex
2
reserved = 0
command number = 07
dec
= 07
hex
3
reserved = 0
AutoAd
4...19
not used
not used
Legend:
UID
user ID
1 byte
00…FF
hex
= 0…255
dec
AutoAd
automatic addressing
1 byte
00 = deactivate automatic addressing
01 = activate automatic addressing
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
reserved = 0
reflected command number
3...19
not changed*)
not changed*)
*)
IMPORTANT:
For the query read only the required bytes!
Unused bytes can contain information of previous queries.
Example:
activate automatic addressing of the AS-i master
Request from fieldbus master to device
Word no.
Value [hex.]
Meaning
1
0465
04 = user ID changes e.g. to 4
65 = command request
2
0007
07 = command number 7
3
0001
01 = activate automatic addressing
4...19 xxxx
not
used
Response from device to fieldbus master
Word no.
Value [hex.]
Meaning
1
046F
04 = reflected user ID
6F = command status is "done" (no error)
2
0007
reflected command number
3...19 xxxx
not
changed
