Using the Digital Control Port
Bi-directional Digital IO
Digital Input
Fault Output
Inhibit Input
Fault/Inhibit System Protection
Output State
A Digital Control Port consisting of seven I/O pins is provided to access various control functions. Each
pin is user-configurable. The following control functions are available for the I/O pins:
Bi-directional Digital IO
Each of the seven pins can be configured as general purpose bi-directional digital inputs and outputs.
The polarity of the pins can also be configured. Pin 8 is the signal common for the digital I/O pins. Data
is programmed according to the following bit assignments:
Pins 7
6 5 4 3 2 1
Bit weight 6
(msb)
5 4 3 2 1 0
(lsb)
To configure the pins for digital IO:
Front Panel Menu Reference SCPI Command
Select System\IO\DigPort\Pins.
Select a pin in the pin field.
In the Function field, select Dig I/O.
In the Polarity field, select Positive or Negative.
To send data to the pins, select
System\IO\DigPort\Data.
Select the Data Out field and enter the binary
word.
To configure the pin function:
DIG:PIN1:FUNC DIO
To select the pin polarity:
DIG:PIN1:POL POS
DIG:PIN1:POL NEG
To send data to the pins:
DIG:OUTP:DATA <data>
The digital I/O pin can be used to control both relay circuits as well as digital interface circuits. The
following figure illustrates typical relay circuits as well as digital interface circuit connections using the
digital I/O functions.
Keysight N6700C Operating and Service Guide 149
4 Operating the Power System
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