ifm
Device manual AS-i M4 Gateway Profibus DPV1 (AC1375, AC1376)
2012-02-23
DP module 7 – command channel
Commands in DP module 7
173
10.1.1
Module 7, command 01 – Read master flags
5608
Request from fieldbus master to device
Bit
Byte no.
7
6
5
4
3
2
1
0
1
0
0
01
dec
= 01
hex
2
MM
0
3
not
used
4
not
used
Legend:
MM
master no.
2 bits
01
bin
= 1
dec
= master 1
10
bin
= 2
dec
= master 2
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
table Master flags in module 7 (
→
page
)
4
table Master flags in module 7 (
→
page
)
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
Master flags in module 7
5611
Byte
Bit
If bit D6 = TRUE, then:
0
periphery of all connected slaves is ok (no peripheral fault)
1
automatic addressing is enabled
2
exchange of data with the slaves is active
3
3...7 reserved
0
AS-i configuration is ok
1
a slave 0 is detected
2
automatic addressing is enabled
3
automatic addressing is active
4
configuration mode is active
5
normal mode is active
6
AS-i voltage fault has occurred
4
7
offline phase completed
