ZIEHL-ABEGG ECblue MK090 I Series, Руководство по сборке

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5.10 Communication
5.10.1 RS-485 interface for MODBUS
The device comes equipped with a RS-485 interface for networking via MODBUS. Conntection at: “ A
(D+) ” , “ B (D-) ” and “ GND ” .
Addressing is performed by an external terminal or a PC with the appropriate software.
Automatic addressing can be started when the connections
“
ID1
”
and
“
ID2
”
for
“
Addressing
”
are
connected with each other additionally next to the bus connection. I. e. it is no longer necessary to
address every user manually in the network (
MODBUS networking and automatic addressing).
For automatic addressing with hand held terminal type A-G-247 and digital control and display unit
NETcon type A-G-102ANE max.
63 members, with control module UNIcon MODBUS Master max. 32
members.
13.08.2013
v_modbus_connect_ext.vsd
ID1 GND
A
(D+)
B
(D-)
ID2
MODBUS
(RS-485)
A
d
d
re
s
s
in
g
A
d
d
re
s
s
in
g
ID1 GND
A
(D+)
B
(D-)
ID2
MODBUS
(RS-485)
A
d
d
re
s
s
in
g
A
d
d
re
s
s
in
g
Example for devices with MODBUS connection and automatic addressing
Information
•
You must ensure correct connection; i. e.
“
A (D+)
”
must also be connected on the following devices
to
“
A (D+)
”
. The same applies to
“
B (D+)
”
.
•
In addition, a "GND" connection must be established, as dissimilar potential (over 10 V!) will lead to
the destruction of the RS-485 interface (e.g. lightning).
•
Pay attention to suf fi cient distance from powerlines and motor wires (min. 20 cm)
•
Except the data link “ A (D+) ” , “ B (D-) ” the “ ID1 - ID2 ” and the “ GND ” connection may no further cable
cores of the data line be used.
•
When using the connection box the cable shield of the CAT5 cable is internally connected to “ PE ” by
an RC element.
•
Another 63 users are connected by a repeater in manual addressing (no connection of connections
“ ID1 ” , “ ID2 ” ).
•
If a repeater is necessary and automatic addressing should be carried out, only the repeater of the
Z-G-1NE type can be used, only it can relay the addressing signal.
•
The connections for the automatic addressing “ ID1 ” and “ ID2 ” are not directly connected with each
other. These may not be bridged; any order of connection is possible.
Example for MODBUS connection
The data line must be conducted from one device to the next. No other type of wiring is allowed!
Always use only two wires of one lead (twisted pair) for the connection.
Assembly instructions ECblue Electrical installation
L-BAL-F056-GB 1939 Index 003 Part.-No. 00700562-GB
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