Agilent Technologies 34921A User Manual page 12

SCPI Programming Examples for the Multiplexer Modules
Configuring a Module
Example: Configuring a module for 2-wire or 1-wire mode The following
command configures a MUX module in slot 4 for 1- wire mode. Because
you can configure only the 34923A and 34925A MUX modules (and the
34933A matrix module) for either 2- wire or 1- wire mode, an error is
generated if you send this command to a slot that does not contain
one of those three modules. If you are using terminal blocks with
these modules, be sure to use the corresponding 2- wire or 1- wire terminal
block.
SYSTem:MODule:WIRE:MODE WIRE1,4
Example: Querying the system for module Identify The following command
returns the identity of the module installed in slot 7.
SYSTem:CTYPe? 7
Querying and Clearing Cycle Count, and Resetting Modules
Example: Querying the cycle count for a relay The following command returns
the cycle count on channel 7 and channel 16 for a MUX module in slot 1.
DIAGnostic:RELay:CYCLes? (@1007,1016)
Example: Clearing the cycle count for a relay The following command resets
the cycle count to zero on the channels 7 and 16 for a MUX module in
slot 1.
DIAGnostic:RELay:CYCLes:CLEar (@1007,1016)
Example: Resetting module(s) to power-on state The following command
resets a module in slot 4 to its power- on state.
SYSTem:CPON 4
6
When using a command to configure the system, the new
N O T E
configuration does not take effect until you cycle power on the
34980A.
For the 34923A and the 34925A MUX modules, the query response
N O T E
may include a suffix to indicate a 1-wire configuration. For example,
the response for the 34923A will be either "34923A" (differential
mode) or "34923A-1W" (single-ended mode).
The 34925A will return 0 for relay counts because the FET relays on
N O T E
that module are non-mechanical and have an undefined lifetime.
Agilent 34921A-34925A Low Frequency Multiplexer Modules User's Guide