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The legal range of values is -32768 to 32767. Only the upper 12 bits are stored into
memory. The lower 4 bits are ignored, and the actual values sent over the Local bus
for these lower 4 bits are determined by the current setting of the
DIAGnostic:CHANnel:LABel command.
Comments • Executable when initiated: No
• Coupled command: Yes. VINStrument:CONFigure:LBUS:FEED will be
changed to "MEMory:BOTH", VINStrument:CONFigure:LBUS:MODE will be
set to GENerate, and VINStrument:CONFigure:VME:MODE will be set to OFF.
• The module receiving the data must have been previously set up so that it is ready
to CONSume data.
• When testing the Local bus, you must send a minimum of 28 bytes and the byte
count must be a multiple of 4. If less than 28 bytes are sent, error -109 "Missing
parameter" occurs. If the byte count is not a multiple of 4, error -161 "Invalid
block data" occurs.
• Because MEMory:BOTH is the FEED, the first data point is sent from channel 2,
the second data point is sent from channel 1, the third data point from channel 2,
and so on.
• As mentioned above, the lower 4 bits of each 16-bit reading sent out over the
Local bus are determined by the current setting of DIAGnostic:CHANnel:LABel
for the channel the data was stored into. These 4 bits may not have the same
value as the data sent with this command. Therefore, the consuming module may
receive slightly different data than what was downloaded with this command.
• Related Commands: VINStrument:CONFigure:LBUS:FEED,
VINStrument:CONFigure:LBUS:MODE
• *RST Condition: none
Example Testing Local Bus operation
VINS:TEST:DATA #240<40 bytes of data>
Send 40 bytes (10 readings per channel),
using IEEE-488.2 definite length block
VINStrument[:CONFigure]:TEST:DATA
292 Command Reference VINStrument Subsystem