B&K Precision 1785B - Manual - Manual (Page 25)

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4. Setting the output voltage (0x23)
1
st
byte Start bit (0xAA )
2
nd
byte Address(0x00~0xFE)
3
rd
byte Command（0x23）
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
7
th
byte The highest byte of output voltage value
8
th
to 25
th
byte System reserve
26
th
byte Check sum
5．Setting the output current (0x24)
1
st
byte Start bit (0xAA )
2
nd
byte Address (0x00~0xFE)
3 rd byte Command（0x24）
4
th
byte To set the low byte of current value (1 represents 1 mA)
5
th
byte To set the high byte of current value
6
th
to 25
th
byte System reserve
26
th
byte Check sum
6. Setting the communication address (0x25)
1
st
byte Start bit ( 0xAA )
2
nd
byte The current address of power supply(0x00~0xFE)
3
rd
byte Command(0x25)
4
th
byte The new address
5
th
to 25
th
byte System reserve
26
th
byte Check sum
7. Reading the measured output current/voltage, maximum voltage setting,
voltage/current setting, and the states of power supply. (0x26)
1
st
byte Start bit ( 0xAA)
2
nd
byte Address(0x00~0xFE)
3
rd
byte Command（0x26）
4
th
byte Byte 0 of measured output current value
5
th
byte Byte 1 of measured output current value
6
th
byte Byte 0 of measured output voltage value
7
th
byte Byte 1 of measured output voltage
8
th
byte Byte 2 of measured output voltage
Note: Suppose you want to set the maximum current to 3.12 A. Since 1
represents 1 mA, 3.12 A translates to 3,120 in decimal. With 2 bytes in Hex, that
would be 0x0C30. Since the bytes are ordered in little-endian format, 0x30 would
be the 4
th byte, and 0x0C as 5 th byte.