B&K 1786B Power Supply User Manual


 
23
11
th
byte To set the low byte of current value
12
th
byte To set the high byte of current value
13
th
byte Byte 0 of the maximum voltage value
14
th
byte Byte 1 of the maximum voltage value
15
th
byte Byte 2 of the maximum voltage value
16
th
byte Byte 3 of the maximum voltage value
17
th
byte Byte 0 of output voltage value
18
th
byte Byte 1 of output voltage value
19
th
byte Byte 2 of output voltage value
20
th
byte Byte 3 of output voltage value
21
st
to 25
th
byte System reserve
26
th
byte Check sum
8. Entering the calibration mode( 27H)
1
st
byte Start bit(AAH)
2
nd
byte Address(0~0XFE)
3
rd
byte Command(27H)
4
th
byte Calibration protection state
5
th
byte Calibration password(0X28H)
6
th
byte Calibration password(0X01H)
7
th
to 25
th
byte System reserve
26
th
byte Check sum
9. Reading the calibration state (28H)
Note:
1. We use 4 bytes to represent the maximum voltage value as follows:
Byte 3 Byte 2 Byte1 Byte
0
2. We use 1 byte to represent power supply’s state. Each bit is defined as
follows:
From higher bit to lower bit
7 6 5 4 3 2 1 0
0 bit: The output state, 0 is OFF, 1 is ON.
1 bit: Over heat protection, 0 is normal, 1 is abnormal.
2? 3 bit: The output mode, 1 is CV mode, 2 is CC mode,3 is Unreg mode.
4? 5? 6 bit: The fan speed, 0 is stop, 5 is the maximum fan speed.
7 bit: Operation state, 0 is front panel operation mode, 1 is remote control
mode.
3. The frame format is the same as above
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.