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Quick Installation Guide for Solar Power Inverter M88H EU V3 EN 5013240202 02 2018-03-22
Connecting a data logger via RS485
RS485 terminal block
1
2
3
4
5
6
1
VCC (+12 V; 0.5 A)
2
GND
3
DATA+ (RS485)
4
DATA– (RS485)
5
DATA+ (RS485)
6
DATA– (RS485)
Terminal pairs 3/4 or 5/6 can be used. The second terminal pair
is only required when connecting several inverters via RS485.
Data format
Baud rate
9600, 19200, 38400; standard: 19200
Data bits
8
Stop bit
1
Parity
Not applicable
The baud rate can be set on the inverter display after commis-
sioning, see “Baud rate for RS485”, page 51.
Connecting a single inverter to a data logger
ON
1
2
Termination resistor = ON
Data logger
Connecting multiple inverters to a data logger
► If the data logger does not have an integrated RS485 termi-
nation resistor, switch the RS485 termination resistor on the
first inverter to
ON
(1)
.
► Set a different inverter ID at each inverter during commis-
sioning, see “Commissioning – basic settings”, page 49.
(1)
...
ON
1
2
ON
1
2
ON
1
2
RS485
Termination resistor = OFF
Termination resistor = OFF
Termination resistor = ON
Datalogger
DIP switch for RS485 termination resistor and VCC
1
VCC (+12 V; 0.5 A)
2
RS485 termination resistor
