Sigma LBA-300, LBA-710, LBA-714PC, LBA-712, LBA-708 Transfer Commands, Transferring Raw Data, Daw

10.6 Transfer Commands

Transfer commands allow you to do the following:

Download raw data (whole frames or data at the cursors)

Read, write, upload, or download data files

Set or query conditions associated with a frame

Download computational results

Download pass/fail results

Log data or results to the host

The LBA-PC uses the IEEE 488.2 Definite Length Arbitrary Block Response Data specification to send and receive binary data. This specification has the form:

#nd..d(DAB)…(DAB)

Where:

#= ASCII pound symbol (0x23)

n= ASCII decimal digit ranging from 1 to 9. This value specifies the number of digit elements, d..d, that follow.

d..d	=	ASCII decimal integer that specifies the number of data bytes that follow.
(DAB)	=	8-bit data byte.

The LBA-PC also uses a modified form of the specification that has the form: #nd..d(DAW)…(DAW)

Where:

#= ASCII pound symbol (0x23)

n= ASCII decimal digit ranging from 1 to 9. This value specifies the number of digit elements, d..d, that follow.

d..d	=	ASCII decimal integer that specifies the number of data words that follow.
(DAW)	=	Data Word. Two 8-bit data bytes, low byte followed by high byte.

The second form is used to emphasize the fact that each pixel is a 16-bit value.

10.6.1Transferring Raw Data

You can download a frame of data from the LBA-PC. If you do not specify a specific frame then data from the current frame is transferred. Data frames are always transferred as raw data. Data frames contain no information about conditions that created the data. To obtain other information regarding the conditions under which the frame was created (i.e. pixel scale, energy calibration, capture resolution, etc.) you will need to also transfer the Frame Status data (see A.5.4.7 FST). If you want

Operator’s Manual 186 LBA-PC