Sigma LBA-700, LBA-710, LBA-714PC, LBA-300, LBA-712, LBA-708, LBA-400 Transferring Data Files, Rdd?End

#= ASCII pound character (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 data is transmitted in a row and column sequence beginning at the display’s upper left-hand corner, proceeding row by row and ending at the lower right-hand corner.

The following example describes how the host controller requests the current frame and receives the data. The received data frame has the dimensions of 64 X 60. Therefore, the LBA-PC transmits 3840 data words (pixels), or 7680 bytes to the host controller.

Host sends

:RDD?(^END)

LBA-PC sends

RDD FrameNumber=9; Width=64; Height=60; #43840(DAW)…(DAW)(^END)

The following example describes how the host controller requests and receives data in frame number 17. The LBA-PC sends the 32 X 30 frame as 960 data words or 1920 bytes.

Host sends

:RDD?

FrameNumber=17(^END)

LBA-PC sends

RDD FrameNumber=17; Width=32; Height=30; #3960(DAW)…(DAW)(^END)

10.6.2Transferring Data Files

Four commands allow you to download, upload, read or write data files. These commands are:

Operator’s Manual 190 LBA-PC