21
3
rd
byte
Command
(
20H
)
4
th
byte
Operation mode(0 represent front panel operation mode, 1
represent remote operation mode)
5
th
to 25
th
byte
System reserve
26
th
byte
Check sum
2
.
Setting the output state ON/OFF
(21H)
1
st
byte
Start bit (AAH )
2
nd
byte
Address(0~0XFE)
3
rd
byte
Command (21H)
4
th
byte
Output state(0 is OFF
,
1 is ON)
5
th
to 25
th
byte
System reserve
26
th
byte
Check sum
3
.
Setting the maximum output voltage
(22H)
1
st
byte
Start bit (AAH )
2
nd
byte
Address(0~0XFE)
3
rd
byte
Command (21H)
4
th
byte
The lowest byte of voltage upper limit
5
th
byte
The lower byte of voltage upper limit
6
th
byte
The higher byte of voltage upper limit
7
th
byte
The highest byte of voltage upper limit
8
th
to 25
th
byte
System reserve
26
th
byte
Check sum
4
.
Setting the output voltage
(23H)
1
st
byte
Start bit ( AAH )
2
nd
byte
Address(0~0XFE)
3
rd
byte
Command
(
23H
)
4
th
byte
The byte 0 of output voltage value
5
th
byte
The byte 1 of output voltage value
6
th
byte
The higher byte of output voltage value
Note:
We use 4 bytes of Hex number to represent a maximum voltage value. For
example the maximum voltage is 16.000V, the hex code of 16.000 is
0X00003EB0
,
so the 4
th
byte is 0XB0, 5
th
bye is 0X3E, 6
th
byte is 0X00
,
7
th
byte
is 0X00.
Note: You can not control the power supply from the front panel when
the power supply is in calibration mode.