Agilent Technologies Switch/Measure manual Making Measurements

Low Frequency Multiplexer Switch Modules 4

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.

CONFigure:VOLTage:DC 10,0.003,(@1003,1008)

ROUTe:SCAN (@1003,1008)

INITiate

FETCh?

34980A User’s Guide 99