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Installation instructions sonnenBatterie eco 9.43
6.6 Connecting the modbus line
Measurement data is transmitted from the power meter to the storage system
using the Modbus line.
It is essential to ensure that a screened patch cable is used and that the
screen of the Modbus line is earthed in order to ensure optimal data trans-
mission.
Use a patch cable with the following properties as the Modbus cable:
• The Patch cable is Cat 6.
• The Patch cable is shielded.
Earth the screen (5) of the Modbus line for the power meter
6
.
Connect the patch cable (1) as it is shown in the following figure.
1
2
3
6
XSO2
A1 A2
13 14 15 16
1 2 3 4
5 6 7 8
4
5
7
Illustration 39: Connecting the modbus line
1
Patch cable (not included in scope of delivery)
2
Power meter
3
Modbus terminal strip
4
Jumper for Modbus termination
5
Connection of the shield to the grounding system
6
Modbus line (A- = white/blue | B+ = blue | GND = brown)
7
RJ-45 coupling
XSO2
Modbus port
If there is no jumper (4) installed between the pins 6 and 8 on the plug of the
Modbus terminal strip (3):
Install a jumper (4) between pins 6 and 8 on the Modbus terminal strip (3)
connector.
6
Install the supplied screen clamp for this purpose as described in the provided instructions.
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