5.10.2
MODBUS networking and automatic addressing
On the
fi
rst user that is connected directly to a terminal, MODBUS Master or PC,
“
GND
”
and
“
ID1
”
or
“
ID2
”
must be bridged. This is recognised as a result and occupied by address
1
.
For the following users the connection
“
ID1
”
or
“
ID2
”
of a user respectively is connected with
connection
“
ID1
”
or
“
ID2
”
of the next user.
The automatic addressing of other users is initiated by the previous user via this connection.
Networking with telephone wire
The connection at the terminal is made at the terminals: A (D+), B (D-) and GND.
Connection of the users via the terminals: A (D+), B (D-), GND and ID1 / ID2
Networking with RJ45 patch cable by usage connection box for ECblue
The connection to the terminal is made at the terminals: A (D+), B (1D-) and GND.
Connection of the members via the two RJ45 connections
“
BUS1
”
and
“
BUS2
”
Assembly instructions
ECblue
Electrical installation
L-BAL-F056-GB 1939 Index 003
Part.-No. 00700562-GB
22/35
