Scpi Programming Examples For The Multiplexer Modules - Agilent Technologies 34921A User Manual

SCPI Programming Examples for the Multiplexer Modules

SCPI Programming Examples for the Multiplexer Modules
The programming examples below provide you with SCPI command
examples to use for actions specific to the MUX modules.
The slot and channel addressing scheme used in these examples follow the
form sccc where s is the mainframe slot number (1 through 8) and ccc is
the three- digit channel number. For information on specific MUX channel
configurations, refer to the simplified schematics contained in each MUX
section of this manual.
For complete information on the SCPI commands used to program the
34980A, with example programs, refer to the Agilent 34980A
Programmer's Reference contained on the 34980A Product Reference CD.
Opening and Closing Channels
Example: Closing and opening channels on the armature and reed MUX modules
This command closes the specified channels on a MUX module. If any
channel in a bank is defined to be part of the scan list, and a scan is
occurring, attempting to close another channel (including Analog Bus
channels) within the same bank will result in an error. Channel closures
in the other bank are allowed as long as no channels are part of the scan
list.
The following commands close and open channels 13 and 15 through 18 in
slot 3.
ROUTe:CLOSe (@3013,3015:3018)
ROUTe:OPEN (@3013,3015:3018)
Example: Closing channels on the FET MUX module The FET MUX module
supports a 1:N type closure, meaning that you can have only one channel
per bank closed at a time. The following command closes then
automatically opens each channel from 1- 19 (Bank 1) in succession,
leaving channel 20 closed. Then the command continues closing and
opening channels 21 to 39 (Bank 2), then leaving channel 40 closed.
At the end, only channels 20 and 40 will be closed, while all other
channels will have been closed and then opened. In this process,
a channel will open before the next channel in succession closes, making
this a "break- before- make" series.
ROUTe:CLOSe (@3001:3040)
The following command opens the closed channel on Bank 1 of a FET
MUX module in slot 3, and closes channel 15 on that bank.
ROUTe:CLOSe (@3015)
4 Agilent 34921A-34925A Low Frequency Multiplexer Modules User's Guide