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
349
12.8.12
Acyclic command 26 (1Ahex) – read AS-i master version
5877
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 = 26
dec
= 1A
hex
3...19
not used
not used
Legend:
UID
user ID
1 byte
00…FF
hex
= 0…255
dec
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
M12
MOD
4
master version **), places before the decimal point
5
master version **), places after the decimal point
6...19
not changed*)
not changed*)
Legend:
M12
number of AS-i masters
1 byte
00 = device has 1 AS-i master
01 = device has 2 AS-i masters
MOD
test mode
1 byte
00 = test mode 0: master passes the offline phase and returns to the
normal operating mode.
01 = test mode 1: only available after power ON: if CPTE input = 0, the
master permanently transmits "write parameter" to slave 15
02 = test mode 2: as in normal operation, however, slaves which have not
responded 6 successive times are not deleted from the LDS
03 = test mode 3: master changes to the management phase, remains in
this phase and accepts all known commands of the host system
IMPORTANT:
only call this command once, not cyclically!
04 = test mode 4: master transmits the defined data cyclically
IMPORTANT:
no AS-i error check possible!
*)
IMPORTANT:
For the query read only the required bytes!
Unused bytes can contain information of previous queries.
**) data only valid if MOD = 0 (test mode = 0)
