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6.5.3. Modbus network
It is possible to create a Modbus RTU communication network with various devices linked. For this, it will be important to
correctly position microswitch S3.3 in such a way that last unit in the network has the final network impedance enabled
EN
and rest of units disabled.
S3
S3.3
INDIVIDUAL MODBUS CONNECTION EXAMPLE
MULTIPLE MODBUS CONNECTION EXAMPLE
ECOWATT PLUS n°1
J15
D1
D0
0V
J6
MODBUS
IMPORTANT
Before wiring communication network, it is necessary to configure each unit independently and assign it a different
channel number.
26
OFF: Modbus network end impedance enabled
ON: Modbus network end impedance disabled
J6
J14
D1
D0
12V
J6
CABLE APANTALLADO / SHIELDED CABLE
ECOWATT PLUS
J15
J14
D1
D0
0V
D1
D0
12V
MODBUS
ECOWATT PLUS n°2
J15
J14
D1
D0
0V
D1
D0
12V
ECOWATT PLUS n°3
J15
J14
D1
D0
0V
D1
D0
12V
J6
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