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Device manual AS-i M4 Gateway Profibus DPV1 (AC1375, AC1376)
2012-02-23
DP module 7 – command channel
Commands in DP module 7
174
10.1.2
Module 7, command 02 – Change operating mode
5613
Request from fieldbus master to device
Bit
Byte no.
7
6
5
4
3
2
1
0
1
0
0
02
dec
= 02
hex
2
MM
0
3
MOD
4
not
used
Legend:
MM
master no.
2 bits
01
bin
= 1
dec
= master 1
10
bin
= 2
dec
= master 2
MOD
opperating mode
1 byte
00 = set master to the normal mode (protected mode)
01 = set master to the projection mode
Response from device to fieldbus master
Bit
Byte no.
7
6
5
4
3
2
1
0
1
E
B
reflected command number
2
copy of the request
3
copy of the request
4
not
changed*)
Legend:
E
error bit
1 bit
0 = no error detected
1 = error when executing the command
B
busy
1 bit
0 = command processed, buffer response valid
1 = command in process, channel used
*)
IMPORTANT:
For the query read only the required bytes!
Unused bytes can contain information of previous queries.
