Colby Instruments PDL-100A - Step Step Command; Step? Step Query

Chapter 6 System Commands
© 2010 Colby Instruments. PDL-100A Operating and Programming Manual Page 58
STEP STEP COMMAND
Sets the step size for the delay setting. Step size can be specified
in picosecond (ps) or nanosecond (ns) units or using scientific
notation. The PDL-100A will round DOWN to the nearest step
size resolution if unable to provide exact step size as entered.
Command
Syntax
STEP arg [ps | ns]
arg is the delay step size. For scientific notation, use
<x.xxxxxE-yy> where (x..x) is a 4 digit mantissa and (yy)
is a two digit exponent. E.g. 3.0000E-10 is 300.0
picoseconds.
ps sets the delay in picoseconds
ns sets the delay in nanoseconds
Example
STEP 100 PS
STEP 1 NS
step 3.0e-11
Returns
None
Programming
Example
HP : OUTPUT 705;"STEP 100 ps"<NL>
NI : CWGPIB.Write “STEP 123.50 PS”
STEP? STEP QUERY
The STEP? query command is used to return the current delay
setting step size.
Command
Syntax
STEP?
Example
STEP?
Returns
<x.xxxxxE-yy><NL>
(x..x) is a 4 digit mantissa and (yy) a two digit exponent.
For example, 3.0000E-10 is 300.00 picoseconds.
Programming
Example
HP : OUTPUT 705;"STEP?"<NL>
ENTER 705;STEP$
PRINT (STEP$)
NI: DIM QUERY_RESPONSE As Variant
CWGPIB.Write “STEP?”
QUERY_RESPONSE = CWGPIB.Read(250)
MsgBox (“Step size is: ” & QUERY_RESPONSE)
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