Command Syntax
TDS200/1000/2000 Series Oscilloscope Programmer Manual
2−13
Figure 2-2 shows an example of a block argument.
*DDT #217ACQuire:STATE RUN
Block header
Specifies number of
length digits that follow
Specifies data length
Block argument
Figure 2−2: Block Argument example
<NZDig> specifies the number of <Dig> elements that follow. Taken
together, the <Dig> elements form a decimal integer that specifies
how many <DChar> elements follow.
#0 means that the <Block> is an indefinite length block. The
<terminator> ends the block. You should not use indefinite length
blocks with RS-232, because there is no way to include a <termina−
tor> character as a <DChar> character.
The first occurrence of a <terminator> character signals the end of
the block and any subsequent <DChar> characters will be interpreted
as a syntax error. With the GPIB, the EOI line signals the last byte.
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