B&K Precision 1785B - Manual - Manual (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.