Digital Input; External Trigger I/O - Keysight Technologies RP7900 Serie Guide D'utilisation Et De Maintenance

4 Using the Regenerative Power System

Digital Input

Each of the seven pins can be configured as digital input only. The polarity of the pins can also be
configured. Pin 8 is the signal common for the digital input pins. The pin status reflects the true
condition of the external signal that is applied to the pin. The pin state is not affected by the setting of
DIGital:OUTPut:DATA. To configure the pins for digital input only:
Front Panel Menu Reference
Select System\IO\DigPort\Pins.
Select a pin in the Pin field.
In the Function field, select Dig In.
In the Polarity field, select either Positive or Negative.
To read the data from the pins, select
System\IO\DigPort\Data.
The input data is displayed as a binary number in the
Data In field.

External Trigger I/O

Each of the seven pins can be configured as trigger inputs or trigger outputs. The polarity of the pins
can also be configured. When you program trigger polarity, POSitive means a rising edge and
NEGative means a falling edge. Pin 8 is the signal common for the trigger pins. For an overview of the
trigger system, refer to Trigger
When configured as a trigger input, you can apply either a negative-going or a positive-going pulse to
the designated trigger input pin. The trigger latency is 5 microseconds. The minimum pulse width is 4
microseconds for positive-going signals, and 10 microseconds for negative-going signals. The pin's
polarity setting determines which edge generates a trigger-in event.
When configured as a trigger output, the designated trigger pin will generate a 10 microsecond-wide
pulse when a Trigger Out occurs. Depending on the polarity setting, it can be either positive-going
(rising edge) or negative-going (falling-edge) when referenced to common.
Front Panel Menu Reference
Select System\IO\DigPort\Pins.
Select a pin in the Pin field.
In the Function field, select either the Trig In or Trig Out
function.
In the Polarity field, select either Positive or Negative.
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To select the pin function:
DIG:PIN<1-7>:FUNC DINP
To select the pin polarity:
DIG:PIN<1-7>:POL POS
To read the data on the pins:
DIG:INP:DATA?
Overview.
To select the trigger output function for pin 1:
DIG:PIN1:FUNC TOUT
To select the trigger input function for pin 2:
DIG:PIN2:FUNC TINP
To select the pin polarity:
DIG:PIN1:POL POS
DIG:PIN2:POL POS
SCPI Command
SCPI Command
Keysight RP7900 Series Operating and Service Guide