Keithley 2651A Reference Manual

Section 7: Command reference Model 2651A High Power System SourceMeter® Instrument Reference Manual
7-52 2651A-901-01 Rev. A / March 2011
Usage
digio.writebit(N, data)
N
Digital I/O trigger line (1 to 14)
data
The value to write to the bit:
• 0 (low)
• Non-zero (high)
Details
If the output line is write-protected using the digio.writeprotect attribute, the command is ignored.
The reset() function does not affect the present state of the digital I/O lines.
Use the digio.writebit() and digio.writeport() commands to control the output state of the
synchronization line when trigger operation is set to digio.TRIG_BYPASS.
The data must be zero (0) to clear the bit. Any value other than zero (0) sets the bit.
Example
digio.writebit(4, 0)
Sets digital I/O Line 4 low (0).
Also see
digio.readbit() (on page 7-43)
digio.readport()
(on page 7-43)
digio.trigger[N].mode
(on page 7-46)
digio.writeport()
(on page 7-52)
digio.writeprotect (on page 7-53)
digio.writeport()
This function writes to all digital I/O lines.
Type TSP-Link accessible
Affected by Where saved Default value
Function Yes
Usage
digio.writeport(data)
data
Value to write to the port (0 to 16383)
Details
The binary representation of data indicates the output pattern to be written to the I/O port. For example, a data
value of 170 has a binary equivalent of 00000010101010. Lines 2, 4, 6, and 8 are set high (1), and the other 10
lines are set low (0).
Write-protected lines are not changed.
The reset() function does not affect the present states of the digital I/O lines.
Use the digio.writebit() and digio.writeport() commands to control the output state of the
synchronization line when trigger operation is set to digio.TRIG_BYPASS.

Keithley 2651A Specifications

General

Brand	Keithley
Model	2651A
Category	Measuring Instruments
Language	English