66
ifm
Device Manual Supplement: Acyclic data records and Command interface (AC14 and AC4S)
2017 / 09
Command channels
>
4.3.5
Command 0x0004 – Change LPS
8806
Requirement:
The addressed AS-i master must be in the projection mode.
Command 0x0005 – Change the operating mode of the AS-i master
(
>
Command request channel (fieldbus master >>> device)
11111
Offset
Word no.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
UID
2
command number
3
15(A) 14(A) 13(A) 12(A) 11(A) 10(A) 9(A)
8(A)
7(A)
6(A)
5(A)
4(A)
3(A)
2(A)
1(A)
--
4
31(A) 30(A) 29(A) 28(A) 27(A) 26(A) 25(A) 24(A) 23(A) 22(A) 21(A) 20(A) 19(A) 18(A) 17(A) 16(A)
5
15B
14B
13B
12B
11B
10B
9B
8B
7B
6B
5B
4B
3B
2B
1B
--
6
31B
30B
29B
28B
27B
26B
25B
24B
23B
22B
21B
20B
19B
18B
17B
16B
7...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