1256E User Manual
Advanced SCPI Operations 8-16
Racal Instruments
©
2002
Defining a Scan List
A Scan List may be defined using the SCAN command. The syntax
for the SCAN command is shown below:
[:ROUTe]
:SCAN
<scan
list>
:DELete
[:ALL]
:SCAN?
The <scan list> is the same as a <channel list> used with the
CLOSE, OPEN, and PATH commands, but with one addition:
special keywords may be used to indicate that all channels
controlled by the 1256 are placed in the state as recalled from
nonvolatile memory.
In short, the <scan list> is comprised of:
A)
Individual channel designators. Examples:
3(0)
6(37)
1(323)
B)
A list of single channels, separated by commas:
3(0,2,4,6)
7(9,2,1,10)
C)
A range of relays, separated by a colon:
3(1:8)
7(10:2)
D)
A path name:
Path1
Thispath
E)
A state name. State names begin with the letters “STATE”,
and end with a number between 0 and 100. The following
are valid state names:
STATE0
STATE7
State53
State100
For example, the commands:
PATH:DEF example,(@7(0,5,10,13))
SCAN
(@1(323),4(0:2),5(8:5),example,
1(0),state14,1(224))
Define a path name (“example”) and then define a SCAN list. Each
time a trigger is received, the next channel, path, or state in the
scan list is closed after the previous channel or path is opened.
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