User manual

RS-485

Multiple power supplies (up to 31) can be connected together in series and be controlled via

the DB-9 RS-485 interface.

1. From the SYSTEM menu, browse and select Communication and press .

2. Select RS485 and press to set to RS485 for remote communication. The

following display will be shown:

3. 4800 is the baudrate; 8 is the data bits; N is the parity; 1 is the stop bit; Addr… is for

address.

4. Use to select between each serial settings, and use to change the settings.

5. Below list the options that can be changed for each setting:

Baudrate: 4800, 9600, 19200, 38400, 57600, 115200*

Data bits: 8

Parity: N (None), E (Even), O (Odd)

Stop bit: 1, 2

Addr: 0 to 31

Note: The default is 4800, 8, N, 1, Address = 0.

*Setting the baudrate to 115200 may provide unstable results during remote

communication. Select a lower baudrate if communication errors occur.

6. Select Addr… and press . You will be prompted to enter an address. Use current

adjust knob or numeric keypad to enter a number between 0 to 31, and then press

7. For each power supply that you want to control, provide a different address. For

example, if you have three power supplies to control, set the first supply to address 1,

second supply to address 2, and third supply to address 3. If two or more supplies have

the same address, the RS485 protocols will create communication errors.

8. Repeat the above steps for each power supply that you want to connect together and

control, making sure that each of them have a different address assigned.

9. Press several times to exit the menu.

RS485

4800 , 8 , N , 1 , Addr . . .