User Manual THEIA HE-t String Inverters 357115.013
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Issue 1.0, 2011 April
59
6.3. Connection between Inverter and Computer
The site performance can be checked remotely by using a computer. The connection can be
achieved between between the inverter and the computer either directly or via a network.
6.3.1. Without Network
To connect the inverter and the computer directly a regular CAT5 Ethernet cable is needed. If
the network card in the computer does not support Autosense, a crossover cable is needed to
create a connection to the inverter.
Figure 6.3.1:Connection without network
1. Slave inverter
2. Master inverter
3. CAN
4. Ethernet
5. PC
The computer’s and the inverter’s IP address must be in the same range, ie. If the inverter’s IP
address is 192.168.10.X, the computer’s IP address must be 192.168.10.Y, where X and Y are
two different numbers between 1 and 254.
To change the computer’s IP address:
The next configuration is taken from Windows 7, but may vary slightly between different
operating systems.
1. Open the network menu by clicking Start
2. Click Control Panel > Network and Sharing Center
3. Click Local Area Connection > Properties
4. Select Internet Protocol Version 4 (TCP/IPv4) > Properties
5. Select Use the following IP address.
Enter the default parameters: IP address 192.168.10.10, subnet mask 255.255.255.0.
Click OK and OK
To connect to the THEIA HE-t, the inverter’s IP address must be entered into the web browser
address line.
NOTICE!
With several inverters connected together via CAN bus the CAT5 cable must be attached to
the master inverter only.
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