DIGital Subsystem
Digital commands program the digital control port on the rear panel of the instrument.
[SOURce:]DIGital:INPut:DATA?
Reads the state of the digital control port. Returns the binary-weighted value of the state of pins 1
through 7 in bits 0 through 6 respectively.
Parameter Typical Return
(none) <bitvalue>
Reads the state of the digital control port: DIG:INP:DATA?
[SOURce:]DIGital:OUTPut:DATA <value>
[SOURce:]DIGital:OUTPut:DATA?
Sets the state of the digital control port. This only affects the pins whose function has been set to
Digital IO operation. The port has seven signal pins and a digital ground pin. In the binary-weighted
value that is written to the port, the pins are controlled according to the following bit assignments:
Pin 1 2 3 4 5 6 7
Bitnumber 0 1 2 3 4 5 6
Decimal value 1 2 4 8 16 32 64
Bit values corresponding to digital port pins that are not configured as DIO are ignored.
Parameter Typical Return
0 – 127, *RST 0 <bitvalue>
Programs pins 1, 3, and 5 on: DIG:OUTP:DATA?
[SOURce:]DIGital:PIN<1-7>:FUNCtion <function>
[SOURce:]DIGital:PIN<1-7>:FUNCtion?
Sets the pin function. The functions are saved in non-volatile memory.
DIO General-purpose ground-referenced digital input/output function.
DINPut Digital input-only mode.
FAULt Pin 1 functions as an isolated fault output. Pin 2 is common for pin 1
INHibit Pin 3 functions as an inhibit input.
ONCouple Pins 4 -7 synchronize the output On state.
OFFCouple Pins 4 -7 synchronize the output Off state.
TINPut A trigger input function.
TOUTput A trigger output function
Keysight RP7900 Series Operating and Service Guide 187
5 SCPI Programming Reference
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