Protect PV.500_MH Operating Instructions
The X5 interface can be switched from RS485 to RS232 using jumpers J4 and J5. The factory setting is RS485, i.e. all jumpers are inserted at J4. You have the option of switching the interface to RS232 by reconnecting all jumpers to J5.
Port 2 (X5): RS232 pin assignment
Pin number | Signal | Description |
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2 | RxD | PC receiving data |
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3 | TxD | PC sending data |
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5 | GND | Interface reference potential |
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7 | RTS | Handshake |
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8 | CTS | Handshake |
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Housing |
| INV housing potential |
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If the RS232 version is used for this port, please use a 1:1 data line.
Controller Area Network (CAN) at X4
Up to four remote panels can also be connected to the potential- free CAN interface for central signalling and display.
1
Figure 16 | Connector X4 |
Port 3 (X4): CAN pin assignment
Pin number | Designation |
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1 | GND |
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2 | Data_L |
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3 | Data_H |
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Cable colour coding White + brown Yellow
Green
Please use a shielded CAN bus cable as the line,
e.g. 2 x 0.22 twisted pair Lapp
Route the CAN bus line from the PV inverter to the remote panel. In a CAN bus network, the ends of the bus must always be termi- nated. A 120 ohm terminating resistor is
7.1.4Configuration
The communication interface does not have to be configured in or- der to connect the PV inverter to the data logger system of the AEG "PV.LoG". Once the bus cable has been installed and the system has been powered up, the configuration settings are made fully automatically.
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