B&K Precision 9130 - Manual - Manual (Page 25)

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5.2 Communication between Power Supply and PC
Before putting the instrument into remote operation, make sure that the baud rate, parity bit and communication
address settings on the power supply and computer side are identical, otherwise communication will not be
possible.
1． Address Range is 0 to 30. Default setting is 0.
2． Baud rate: 4800,9600,19200 and 38400 are selectable, default setting is 9600
3． Parity and Data bits： None/8 bits (default setting)
Even/8 bits
Odd/8 bits
4． Stop bits：1 (fixed)
5． Start Bits: 1 (fixed)
Data Frame Format
Parity=None Start
Bit
8 Data Bits
Stop
Bit
Parity=Odd,
Even
Start
Bit
8 Data Bits
Parity
Bit
Stop
Bit
End of String character is ’\n’ (0x0a)
DB9 Interface Details
The DB9 connector in the rear panel of the power supply provides a TTL level signal .It can be connected to a
standard PC interface via the IT-E131 or IT-E132 isolated communication cable.
Note: Setting of the address is optional. It is not required to communicate with the instrument. The
address can be set from the front panel and is stored in non volatile memory. This feature is
useful when connecting several instruments, e.g. via USB hub. In this scenario, Windows assigns
a virtual COM port to each device which is unknown prior to establishing communications with
the instrument (could be different each time). In this case, the address will allow the user to
correlate each virtual COM port with the address assigned to each instrument.