Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 6:
SCPI command reference
2461-901-01 A/November 2015 6-35
DIGital subsystem
The commands in the DIGital subsystem control the digital I/O lines.
:DIGital:LINE<n>:MODE
This command sets the mode of the digital I/O line to be a digital line, trigger line, or synchronous line and sets
the line to be input, output, or open-drain.
Type Affected by Where saved Default value
Command and query
Recall settings
Instrument reset
Power cycle
Save settings
DIG, IN
Usage
:DIGital:LINE<n>:MODE <lineType>, <lineDirection>
:DIGital:LINE<n>:MODE?
<n>
The digital I/O line (1 to 6)
<lineType>
Sets the digital line control type; the options are:
• Allow direct digital control of the line: DIGital
• Configure for trigger control: TRIGger
• Configure as a synchronous master or acceptor:
SYNChronous
<lineDirection>
Sets the line direction; the options are:
• Input: IN
• Output: OUT
• Open drain: OPENdrain
• Master: MASTer
• Acceptor: ACCeptor
See Details for valid combinations with line type.
Details
You can specify the line type and line direction parameters to configure each digital I/O line into one
of the following modes:
• Digital open-drain, output, or input
• Trigger open-drain, output, or input
• Trigger synchronous master or acceptor
A digital line allows direct control of the digital I/O lines by writing a bit pattern to the lines. A trigger
line uses the digital I/O lines to detect triggers.

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV