(2) Individual PV system with modem for remote inquiry
PV
INVERTER (1)
RS 232 MODEM | MODEM RS 232 | PC |
Connection to modem via RS 232
Brown
Yellow
Green
RX2
TX2
GND_G
RX
TX
GND_G
RS 485–
RS 485–
RS 485+
RS 485+
(2)To install the remote inquiry of an indi- vidual solar inverter, the RS 232 signal can be routed directly from the solar inverter to the remote modem.
Cable type B is used for this purpose. For the RS 232 connection between solar inver- ter and modem, a cable length of 50 m
should not be exceeded.
When connecting an individual solar inverter, the remote modem is connected directly to the RS 232 signal.
Stripped length: 11 mm
Jumper JP400: open (see page 121)
116
