Agilent Technologies Switch/Measure manual Self-Test, Front-Panel Display Control

2Features and Functions

Self-Test

A power- on self- test occurs automatically when you turn on the instrument. This limited test assures you that the instrument and all installed plug- in modules are operational. This self- test does not perform the extensive self test described below.

A complete self- test actually performs a series of internal tests and takes approximately 20 seconds to execute. If all tests pass, you can have high confidence that the instrument and all installed plug- in modules are operational. This feature is available from the remote interface only.

•If you have a 34951A Isolated DAC Module installed, the complete self- test will require an additional 15 seconds to complete per DAC module (a memory test is performed).

•The complete self- test will abort if any signals are connected to ABus1 via the rear- panel Analog Bus connector (pins 4, 5, and 9; see “Analog Buses” on page 15). Be sure to disconnect any signals from ABus1 prior to running the self- test.

•If the power- on or complete self- test fails, and error is stored in the error queue. See the Agilent 34980A Service Guide for more information on returning the instrument to Agilent for service.

•Following the complete self- test, the instrument issues a Factory Reset (*RST command).

Remote Interface Operation: The following command returns “+0” if the self- test is successful or “+1” if it fails.

*TST?

Front-Panel Display Control

For security reasons or for a slight increase in measurement rates, you may want to turn off the front- panel display. From the remote interface, you can also display up to 18 characters on the upper line of the front- panel display.

•You can disable the front- panel display only by sending a command from the remote interface (i.e., you cannot disable the front panel while in local operation).

•When disabled, the entire front- panel display goes dark and all display annunciators except ERROR, HOT, and Safety Interlock are disabled.

•The front- panel display is automatically enabled when power is cycled, after a Factory Reset (*RST command), or after an Instrument Preset

(SYSTem:PRESet command).

66 34980A User’s Guide