Solar Inverter Communication Driver

Solar Inverter is driver to communicate with inverter controller of Hex Power System Co., Ltd, in Korea.

1. Read settings

<Figure 1> is read setting example of Solar Inverter.

<Figure 1> Read setting example of Solar Inverter

Device part of <Figure 1> input Com Port(COM1), Baud Rate(9600), Parity Bit(0), Data Bit(8), Stop Bit(1) respectively, according to device.

Solar Inverter driver's read schedule

Read schedule setting parameters are as follows :

1) Station - Slot number of device ( 0 ~ 31 ),

2) Read Type - Type of area to read. Don't care ( Fixed to R ) .

3) Read Start Address - Start address of area to read. ( 0 ~ 32767 )

4) Save Start Address for Communication Server - Saving start address for Communication Server.

5) Read Size - Number of data to read. ( 1 ~ 16 )

Read schedule example)

READ,    1,     R,    0,   0,   16,

Solar Inverter communication driver's read value is saved at same address WORD/DWORD/FLOAT memory as same value(Only type of saved value is different).

Reference) Hope to use the data contents by memory of Solar Inverter by referring to Solar Inverter device manual.

If you click the icon  in protocol option part at <Figure 1>, you can see the dialog box such as <Figure 2>. you can also set read schedule by using this part.

<Figure 2> Example of Solar Inverter driver's Option dialog box

You can set read schedule by using , , button and listbox of <Figure 2>.

<Figure 3> Solar Inverter driver's read schedule Add/Edit dialog box

When you click Add button or Edit button in dialog box of <Figure 2>, dialog box of <Figure 3> is shown.

2. Writing settings

Digital Write

Digital write setting parameters are as follows:

1) PORT : Communication port number of Solar Inverter device. ( 0 ~ 255, Not COM number )

2) STATION : Slot number of Solar Inverter device. ( 0 ~ 31 )

3) ADDRESS : Memory address to output.

High 3~ 7 digits : WORD address as decimal number,

Sub 1 digit : 0 ~ F bit position.

4) EXTRA 1 : Output command. ( R or fixed to blank )

5) EXTRA 2 : Don't care.

Analog Write

Analog write setting parameters are as follows: 

1) PORT : Communication port number of Solar Inverter device. ( 0 ~ 255, Not COM number )

2) STATION : Slot number of Solar Inverter device. ( 0 ~ 31 )

3) ADDRESS : Memory decimal number address to output. ( 0 ~ )

4) EXTRA 1 : Output command. ( R or fixed to blank )

5) EXTRA 2 : Don't care.

3. Power and communication cable connection of Solar Inverter device

Connect basic power and communication cable of Solar Inverter device, as follows.

Basic power connection

Connect basic AC ( 220 V etc) power to LINE terminal of back of Solar Inverter, such as <Figure 4>. ( <Figure 5> is appearance of front of Solar Inverter device )

<Figure 4> Example of connecting power and communication cable of Solar Inverter device

RS-232C communication cable connection

Connect general RS-232C communication cable to RS-422 terminal of back of Solar Inverter device. (Refer to <Figure 4>)

<Figure 5> Appearance of Solar Inverter device