BK Precision 1785B - Page 27

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9. Reading the calibration state (0x28)
1
st
byte Start bit(0xAA)
2
nd
byte
Address(0x00~0xFE)
3
rd
byte
Command(0x28)
4
th
byte Calibration protection state
5
th
byte
System reserve
26
th
byte Check sum
10. Calibrating the voltage value (0x29)
1
st
byte
Start bit(0xAA)
2
nd
byte Address(0x00~0xFE)
3
rd
byte
Command(0x29)
4
th
byte
Calibrated voltage points(point 1-3)
5
th
to 25
th
byte
System reserve
26
th
byte
Check sum
11. Sending the present output voltage to calibration program (0x2A)
1
st
byte
Start bit (0xAA)
2
nd
byte
Address(0x00~0xFE)
3
rd
byte
Command(0x2A)
4
th
byte
The byte 0 of present voltage value
5
th
byte The byte 1 of present voltage value
6
th
byte
The byte 2 of present voltage value
7
th
byte
The byte 3 of present voltage value
8
th
to 25
th
byte
System reserve
26
th
byte Check sum
Note:
We use a byte to represent calibration protection state
，
each bit is defined as
follows:
from higher bit to lower bit
7
6
5
4
3
2
1
0
0 bit
：
Protection state, 0 is to disable protection, 1 is to enable the protection.
Note:
To calibrate the 3 points of voltage sequentially.