Keysight Technologies 34921A User Manual page 14

Example: Closing and opening Analog Bus relays
The following command
connects the Analog Buses to Bank 1 (via the Analog Bus relays on Bank 1) for a
module in slot 3.
ROUTe:CLOSe (@3911,3912,3913,3914)
ROUTe:OPEN (@3911,3912,3913,3914)
The Analog Bus relays (numbered s911, s912, s913, etc.) on the MUX modules are
ignored if they are included in a range of channels. An error will be generated if an
Analog Bus relay is specified as the first or last channel in a range of channels. For
example, the following command closes all valid channels between channel 30
(slot 1) and channel 5 (slot 2). In addition, this command closes Analog Bus relay
911 on the module in slot 1 (Bank 1). Note that although the specified range of
channels includes the other Analog Bus relays, they are ignored and are not
closed by this command.
ROUTe:CLOSe (@1030:2005,1911)
Example: Querying channels for open or close state
The following
command returns a 1 (true) or 0 (false) state of channel 036 for a module in slot 3.
ROUTe:CLOSe (@3036)
ROUTe:CLOSe? (@3036) !Returns a 1
ROUTe:OPEN? (@3036) !Returns a 0
Making Measurements
Example: Making voltage measurements
The following command
configures channels 9 and 10 in slot 4 for DC voltage measurements, triggers the
internal DMM to scan channels 9 and 10, and returns the reading. The 1 V range is
selected with 1 mV resolution.
MEASure:VOLTage:DC? 1,0.001, (@4009,4010)
Example: Making voltage measurements using INITiate and FETCh?
The following program segment shows how to use the INITiate command with
the CONFigure and FETCh? commands. The ROUTe:SCAN command puts
channels 3 and 8 (of a module in slot 1) into the scan list (and redefines the scan
list). The INITiate command scans the specified channels, and then sends the
readings to memory. The FETCh? command transfers the readings from memory
to the user.
14 Keysight 34921A-34925A User's Guide