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PLC networking is intended for medium voltage grid-connection. If low voltage
grid-connection is desired, observe the following two conditions:
• Never connect a load between the Logger3000 and the PLC slave node.
• The distance between the Logger3000 and the load should be greater than
20m, that is, the LV grid-connection point should be more than 20m away
from the nearest load distribution line. The load includes air conditioners,
machines, motors, etc.
In case of PLC communication, note that:
• Electrical connection between the inverter and its downstream transformer
has been correctly performed.
• Input and output circuit breakers of the Logger, inverter, and transformer are
connected.
7.5 Connecting to the Meteo Station
Meteo Station of the Modbus-RTU protocol can be connected to the Logger3000.
step 1 Connect the communication cable led from the Meteo Station to the RS485 port of the
Logger3000.
step 2 Strip the protection layer and insulation layer of the communication cable with a wire
striper, as shown in the figure below.
step 3 Connect the stripped cable to the RS485 port of the Logger3000, as shown in the figure
below.
7 Electrical Connection User Manual
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