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Agilent 87130A Operating and Service Manual 4-53
Remote Operation
:OPEN
It is possible to combine OPEN and CLOSE in a single command since they are
both part of the
ROUTe subsystem. For example:
ROUTE:CLOSE (@406:410);OPEN (@202);
This command will close channels 6 through 10 on card 4 and open
channel 2 on card 2.
Example Command ROUTE:OPEN ATTEN_14;
Sending the above command causes the set of switch OPENs and CLOSEs
defined by the PATH with name ATTEN_14
to be executed. The first group
of switch settings in the PATH is interpreted as OPEN settings and the
second group as CLOSE settings.
The CLOSE settings are all executed first, followed by the OPEN settings.
For example, if
ATTEN had been defined as:
ROUTE:PATH:DEF ATTEN_14,(@101,102),(@103,104);
then when that path is sent by ROUTE:OPEN ATTEN_14, switches 103 and
104 will first be closed and then switches 101 and 102 will be opened.
NOTE If you are configuring hardware for switching systems, keep in mind that
CLOSE
settings are executed before OPEN settings when a path is sent.
For example, multistage attenuators should be set up so that a CLOSE
operation always adds attenuation and an OPEN operation removes
attenuation. This ensures that in moving from one attenuation setting to
another, the intermediate stage (after the CLOSEs and before the OPENs) is
a stage representing higher attenuation, and thus avoids signal spikes that
could damage sensitive hardware.
Example Command ROUTE:PFAil:OPEN (@101,2(0:5),3(1,3,5));
The ROUTe:PFAil:OPEN command lists the channels desired to be opened on
power up or after
*RST or *TST?. The channel list has the same restrictions as
those for the
ROUTe:OPEN command. Sending the command in the example
above causes channel 1 on card 1, channels 0 through 5 on card 2, and
channels 1, 3 and 5 on card 3 to be opened on power up.
ROUTE:PFAil:OPEN ATTEN_14;
Sending the above command causes the set of switch OPENs and CLOSEs
defined by the PATH with name ATTEN_14 to be added to the PFAIL list.
The first group of switch settings in the PATH is interpreted as OPEN
settings and the second group as CLOSE settings.