ifm
Device manual AS-i M4 Gateway Profibus DPV1 (AC1375, AC1376)
2012-02-23
DP module 7 – command channel
Commands in DP module 7
193
Example:
Read telegram error counter of slave 1 on AS-i master 1
Request from fieldbus master to device
Byte no.
Value [hex]
Meaning
1
0D
0D = command number 13
2 41
(slave
no.
1
)
+ (master no.
1 * 64
)
+ (32, if B slave)
= 65
dec
= 41
hex
3 xx
not
used
4 xx
not
used
Response from device to fieldbus master
Word no.
Value [hex.]
Meaning
1
0D
command processed, no error occurred
reflected command number
2
54
copy of the request
3 00
4 20
error counter = 0020
hex
= 0032
dec
Since the last power on of the device or reset of the counter
32 incorrect telegrams have occurred during the exchange of data.