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Action step
2. Connect together all the systems you want to cascade via bus 4 using Cat.6 data cables.
Bus 4 is labelled on the SENEC.Home Li case as COM 1 or COM 2.
Example: One main system and two subsidiary systems are being installed. Lay a cable from the COM 1
communication connection on the main system to the COM 2 communication connection on the first subsidiary
system. Lay a cable from the COM 1 communication connection on the first subsidiary system to the COM 2
communication connection on the second subsidiary system.
3. Set a jumper to J4 on each of the end systems of the bus.
The jumper at J4 must be set on both of the systems if only two systems are being cascaded.
Example: One main system and two subsidiary systems are being installed. Set jumper J4 on both the MCU of
the main system and on the MCU of the second subsidiary system.
4. Launch the configuration wizard for the mas-
ter system in the local monitoring system and
switch to “Configuration cascading”.
5. Select “Operation as master”.
6. Select the number of subsidiary systems.
7. Set the Modbus addresses of the subsidiary
system in the address fields.
You can chose as the address any number
from 1-220. The address must be allocated
accurately to the subsidiary systems.
8. Click on “Next” and finish the configuration
wizard.
No further settings are required for the network
configuration. You have completed configura-
tion of the master device.
9. Restart the master system on completion of the
configuration.
