Activating Modbus protocol

Communication between the KOSTAL Smart Energy Meter and the KOSTAL inverters is undertaken via the Modbus protocol. For this purpose, the Modbus protocol must be activated in the inverter.

For the PIKO IQ, PLENTICORE plus or PLENTICORE BI:

To enable communication between the KOSTAL Smart Energy Meter and the inverter, the Modbus protocol must be activated.

Activate the Modbus (TCP) protocol by going to the following menu item in the Webserver (1):

Settings > Modbus / SunSpec (TCP) > Activate Modbus.

INFO

More information can be found in the inverter's operating manual. The byte order should be left as little-endian (CDAB) standard Modbus (2).

For the PIKO MP plus, PIKO 4.2-20 (FW >= 05.00) or PIKO EPC

No further settings are required for these inverters.