Keysight Technologies L4490A, Руководство пользователя

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112 Keysight L4490A/L4491A User’s Guide
Introduction to Programming Switch and Attenuator Programming
Figure 4-13. Y1153A Distribution Board Web User Interface Preset State.
Keysight 87222 Series and L7222C Switches
The Keysight 87222 series and L7222C switches are supported on the following
distribution board:
- Y1154A
- 87222 series, L7222C (two switches)
- N18xx series (six switches)
The bank diagram applies to both types of switches and is shown in Figure 4-14.
Presetting the Bank
In order to preset the banks on the 34945EXT module (the programming of any
switch or attenuator must begin with the preset state), ‘
Allow Full Control
’ (Figure
4-2) must be selected and the module’s channel drive must be off (Configure
Module... button).
To set the preset values for the 87222 series, the L7222C, and the N181x series
switches (Figure 4-14), select ‘
Preset Bank
’ in the Bank Configuration window. All
switches supported on these distribution boards have the same preset settings.
Presetting the bank is equivalent to sending the SCPI commands shown, or to
configuring the switches to the settings indicated in the bank, module, and
channel configuration windows.
Changing Settings and Enabling the Channel Drive
Following the preset, use the bank configuration and channel configuration
windows (Figure 4-14) to change the preset settings as required. The SCPI
Command Interface window can also be used to send commands to the
instrument.
When complete, use the module configuration window to enable the channel
drive. (If L4491A Option 002 is installed, the channel drive source must be set to
EXTernal for the second 34945EXT - remote module 2.) Use the bank diagram to
control (open/close) the switches (see “Y1154A Switch Control” in Chapter 5 for
more information).
Settings (commands) from any of these sources can be logged for transfer to
other programming environments (see “Logging SCPI Commands”).