CESA-GW-AS-PB Description
53
7.
PROFIBUS DP
This chapter contains all necessary information to operate the PROFIBUS gate-
ways in a PROFIBUS DP network.
7.1
DP Telegrams
7.1.1
Diagnostics
Information!
The respective bits ground fault, overvoltage, noise, double address will only be set if
AS-i masters are used, which also support these functions.
DP diagnostics - single master
PDU byte
user byte
DP
DP/V1
user
1
–
station_status 1
4
2
–
station_status 2
4
3
–
station_status 3
4
4
–
master address
4
5
–
ident high
4
6
–
ident low
4
7
1
header
4
4
8
2
type
4
9
3
slot
4
10
4
spec
4
11
5
ec-flags (high)
4
12
6
ec-flags (low)
4
13
7
delta (0…7)
4
14
8
delta (8…15)
4
…
…
…
…
20
14
delta (56…63)
4
21
15
LPF (0…7)
4
…
…
…
…
28
22
LPF (56 … 63)
4
Tab. 7-2.
ec-flags (high):
bit 0: periphery fault
bit 1 … bit 2: reserved
bit 3:
failure redundant 24 V (option single master)
bit 4: earth fault
bit 5: over voltage
Summary of Contents for CESA-GW-AS-PB
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