Communication via RS485

 

Connecting the RS485 connection

INFO

Info

Requirements of communication cable:

  • wire cross-section from 0.34 to 1.5 mm² (rigid) or 0.34 to 1.0 mm² (flexible)
  • bus length max. 1000
  • length of stripped insulation approx. 7.5 mm
  1. Guide the RS485 cable through the communication plug and seal provided.
  3. Fit RS485 cable on plug.
    RS485 out is used to continue the network connection to further inverters.
  4. Assemble plug and tighten union nut to the prescribed tightening torque. Tightening torque: 3 Nm.
  5. Connect the plug to the interface in the COM connection panel.
  6. Connect RS485 cable to external device (e.g. data logger).
  1. RS485 cable connected.

After commissioning

INFO

Info

After commissioning, the settings for the RS485 connection still have to be configured in the KOSTAL PIKO CI Conf App.

This includes, for example, setting the transmission speed.

  1. The RS485 termination of the last inverter must be set to ON in the KOSTAL PIKO CI Conf App. This can be done under Settings > Communication settings > RS485 Settings > Terminal resistor.
  2. A different Modbus address must be assigned to each inverter using the KOSTAL PIKO CI Conf App.
    For this purpose, go to Settings > Communication settings > RS485 settings > Modbus address.
  3. As an option, it is also possible to configure a park controller using the KOSTAL PIKO CI Conf App.
    For this purpose, go to Settings > Inverter settings > Power adaptation/control > Park controller.
  1. Settings configured