Power Source; Control/Check The Scanner Interface For Maintenance; Starting Scanner Interface Test; Using Scanner Interface Test Commands - Keysight E4981A User Manual

Using Scanner Interface

Control/Check the Scanner Interface for Maintenance

When the source voltage is between 5 V - 9 V, switch S1 is ON (closed) and
current flows through the input signal resistance of 1 kΩ.
When the source voltage is between 9 V - 15 V, switch S2 is ON (closed) and
current flows through the input signal resistance of 2.27 kΩ.
If the parameter set is out of range, an error is generated.

Power source

You can use only the external power source (EXT_DCV). Set its power output
within the following voltage range.
Control/Check the Scanner Interface for Maintenance
To control/check the Scanner interface, the Keysight E4981A provides several
test commands related to various operations of scanner interface. This section
explains the various test commands available in E4981A to check/trouble the
scanner interface.

Starting Scanner interface test

Scanner interface can be set into test mode by using the
:TEST:SCANner:MODE command. When this command value is set to ON, the
scanner interface pin signal value can be controlled/read by :TEST:SCAN:xxxx
commands.

Using Scanner interface test commands

After setting the :TEST:SCANner:MODE command value to ON, the following
commands can be used to control/read the scanner interface pin signal value:
•
•
•
•
Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter
EXT_DCV
:TEST:SCANner:CH sets the Scanner Channel No.
:TEST:SCANner:EOM sets the Scanner End of Measurement (EOM) status to
HIGH/LOW.
:TEST:SCANner:INDex sets the Scanner Index value to HIGH/LOW.
:TEST:SCANner:VALid? gets the Scanner/CH_VALID signal status as
HIGH/LOW.
Vol tage range [V]
+5 to +15
165