7 Modbus RTU
7.1 General
112
DE1 variable speed starter
09/14 MN040011EN
www.eaton.com
7.1.1 Communication
figure 73: Example: Modbus line
a
Splitter DX-SPL-RJ45… (T-plug connector)
b
DX-CBL-RJ45… connection cable
c
DX-SPL-RJ45… splitter with bus termination resistor
The figure above shows a typical configuration with a host computer (master)
and any number of modules (slaves – up to a maximum of 63).
Each module has a unique address on the network. The corresponding
addresses are assigned individually using the PDP address parameter, which
in DE1 variable speed starters is P-34. The addresses assigned do not have
to follow the physical order (position) in which the modules are connected to
the network.
The master and slave need to be electrically connected using a
DX-CBL-RJ45… connection cable with an RJ45 connector
②
. If multiple
slaves are being used, they need to be connected in parallel using
DX-SPL-RJ45… splitters
①
.
A bus termination resistor is required at the last module on the Modbus
line
③
.
L1/L L2/N L3
U
V
W
1
2
3
4
5
6
7
8
9 10 11
DC1
DE1
DA1
HMI-PLC
②
②
③
①
①
RJ45
L1/L L2/N L3
U
V
W
0 V +10 V 1 2 3
4 13 14
L1/L L2/N L3
DC-
U
DC+ BR
1 2 3 4 5 6 7
8 9 10 11 12 13
14 15 16 17 18
COM
V
W
RS485
Modbus RTU
Содержание PowerXL DE1 series
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Страница 36: ...2 Engineering 2 5 Motor Selection 32 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 68: ...3 Installation 3 6 Block diagrams 64 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 132: ...7 Modbus RTU 7 4 Operating mode Modbus RTU 128 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 146: ...8 Technical Data 8 4 Dimensions 142 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 172: ...10 Fault messages 10 3 Fault list 168 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 186: ...182 DE1 variable speed starter 09 14 MN040011EN www eaton com ...