73
ifm
Device Manual Supplement: Acyclic data records and Command interface (AC14 and AC4S)
2017 / 09
Command channels
>
4.3.10
Command 0x000A – Change PCD
8814
>
Command request channel (fieldbus master >>> device)
11125
Offset
Word no.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ID2-Code
ID1-Code
ID-Code
IO-Code
1
UID
2
command number
3
reserved
4
…34
Slave 1(A)
…Slave 31(A)
35
reserved
36
…66
Slave 1B
…Slave 31B
67...120
The area is completely ignored.
It does not matter whether the data area exists or what data is contained.
Legend:
UID
user ID
1 word
0x0000…0xFFFF = 0…65535
The user ID ensures clear identification of the commmand response data
of the command request data sent before. The user can assign any user
ID in the command request. The AS-i master reflects the user ID from the
command request into the corresponding command response.
>
Command response channel (device >>> fieldbus master)
11086
Offset
Word no.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
reflected user ID
2
reflected command number
3
reserved
Command status
(
4
command error code
>
Possible command error codes
11112
Error Code
Error
Description
0x00
no error
0x19
master is not in projection mode