Agilent Technologies 34945A, Руководство пользователя

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64 Agilent 34945A Microwave Switch/Attenuator Driver Module User’s Guide
4
Introduction to Programming
Legend
When enabled, channel verification [V] and pairing ]P] (channel/attenuator
configuration window) are indicated in the channel “bar”. Switch actuation is
either continuous or pulsed. Pulsed operation is either open collector (falling
edge) or TTL (rising edge).
Bank Diagram
The Bank diagram provides direct switch control (open, close), and identifies
channel numbering within the bank and switch status. The channel configura-
tion can also be changed from the preset state as required.
Position Indicator
The ‘Position Indicator’ column indicates the state of each
switch after the position has been electronically verified. The Agilent switches
and attenuators listed in Table 1-2 are latching relays and, therefore, there is a
relay coil (channel) for each switch position.
IsOpen/IsClosed
This indicator identifies which operation (open or close)
was last selected using the channel’s ‘Open’ or ‘Close’ button on the program-
ming diagram. It may not indicate the actual switch state as the switch posi-
tion is not electronically verified.
SCPI Command Interface
The SCPI programming interface window (Figures 4-2 and 4-6) enables you to
send any command in the 34945A SCPI command set to the instrument.