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DOC_Guide_PLENTIOCRE_BYD_ 2019-04-17-FW_1.20_EN
Basic information by communication problems
Experience has shown that switches or WLAN repeaters that do not support multicasting or do not
properly process and distribute multicast packets (keywords: IPTV, network printer, IP camera, etc.)
are often installed in the event of communication problems.
It must therefore be ensured that the communication interfaces of the PV system are not disturbed in
any way.
If multicast filtering with Internet Group Message Protocol (IGMP*) is not used, the interfaces may be
overloaded because they must respond permanently to multicast traffic that is not intended for them.
Please note that KOSTAL cannot provide detailed recommendations for suitable network devices or
support for the network architecture.
If you are using a Telekom media receiver that is to be connected via WLAN, powerline or switch, you
will find a list of working combinations in the official Telekom Helps Community:
Please consult your network specialist or provider if you need further assistance.
*Note: The current IGMP version 3 is used e.g. for the provision of the IP-TV service "Entertain" of
Deutsche Telekom.
In addition, the following points must be observed to ensure interference-free and secure data
transmission:
1. Signal, data and communication lines must be strictly separated from power cables. Pay
attention to separators in cable ducts.
2. Only use cables and wires for data transmission that are approved and/or suitable for this
purpose.
3. The inverter (additional grounding on the casing frame) and the battery (grounding of the
BMS) must be at exactly the same ground potential. Determine the low resistance of the
individual protective conductors by means of a measurement. Only if the battery and the
inverter are properly grounded can trouble-free and reliable data transmission be guaranteed.
