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Manual – MOVI-PLC® advanced DHF41B DeviceNet and PROFIBUS DP-V1 Fieldbus Interfaces
65
10
Parameter setting via PROFIBUS-DP
PROFIBUS DP-V1 Operating Characteristics
10.4 Parameter setting via PROFIBUS-DP
In the PROFIBUS-DP system, the parameters are accessed via the 8-byte MOVILINK
®
parameter channel. This parameter channel offers extra parameter services in addition
to the conventional
Read
and
Write
services.
Structure of the
8-byte
MOVILINK
®
parameter
channel
PROFIBUS-DP enables access to the MOVI-PLC
®
advanced
DHF41B control card
parameters via the "parameter process data object" (PPO). This PPO is transmitted
cyclically and in addition to the process data channel [2], contains a parameter channel
[1], which can be used to exchange acyclical parameter values (see following figure).
61495AXX
Figure 3: Communication via PROFIBUS-DP
[1]
[2]
[2]
[1]
DHF41B
2
2
2
2
0
1
2
3
2
2
2
4
5
6
27
2
4
6
1
2
3
X34
X35
X36
X37
XM
1
3
5
1
2
3
1
2
3
1
2
3
1
2
3
X3
2
X33
2
4
6
1
3
5
8
10
7
9
X3
1
X38
L18
X30P
S1
3
4
2
1
1
5
X
30D
S2
L16
L15
L14
L13
L12
L11
L10
L9
L8
L7
T1
L6
L5
L4
L3
L2
L1
L17
ON
0
0
I
Summary of Contents for DHF41B
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