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SCPI Command Reference 17-51

Byte order

:BORDer <name>

:FORMat:BORDer <name> Specify binary byte order

Parameters <name> = NORMal Normal byte order for binary formats

SWAPped Reverse byte order for binary formats

Query :BORDer? Query byte order

Description This command is used to control the byte order for the IEEE-754 binary

formats. For normal byte order, the data format for each element is sent as

follows:

Byte 1 Byte 2 Byte 3 Byte 4 (Single precision)

For reverse byte order, the data format for each element is sent as follows:

Byte 4 Byte 3 Byte 2 Byte 1 (Single precision)

The “#0” Header is not affected by this command. The Header is always

sent at the beginning of the data string for each measurement conversion.

The ASCII data format can only be sent in the normal byte order. The

SWAPped selection is simply ignored when the ASCII format is selected.

NOTE The SWAPped byte order must be used when transmitting binary data to any IBM PC

compatible computer.

Status register format

:SREGister <name>

:FORMat:SREGister <name> Set data format for reading status registers

Parameters <name> = ASCii Decimal format

Hexadecimal Hexadecimal format

OCTal Octal format

BINary Binary format

Query :SREGister? Query format for reading status registers

Description Query commands are used to read the contents of the status event registers.

This command is used to set the response message format for those query

commands.

When a status register is queried, the response message is a value that indi-

cates which bits in the register are set. For example, if bits B5, B4, B2, B1,

and B0 of a register are set (110111), the following values will be returned

for the selected data format:

ASCii 55 (decimal value)

Hexadecimal #H37 (hexadecimal value)

OCTal #Q67 (octal value)

BINary #B110111 (binary value)

See Section 15 and STATus subsystem in this section for more information.

Keithley 6430 User Manual

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