Keithley 2657A User Manual

Section 7: TSP command reference Model 2657A High Power System SourceMeter® Instrument Reference Manual
7-346 2657A-901-01 Rev. B/December 2012
tsplink.readbit()
This function reads the state of a TSP-Link synchronization line.
Type TSP-Link accessible
Affected by Where saved Default value
Function Yes
Usage
data = tsplink.readbit(N)
data
The state of the synchronization line
N
The trigger line (1 to 3)
Details
Returns a value of zero (0) if the line is low and 1 if the line is high.
Example
data = tsplink.readbit(3)
print(data)
Assume line 3 is set high, and it is then read.
Output:
1.000000e+00
Also see
tsplink.readport() (on page 7-346)
tsplink.writebit()
(on page 7-356)
tsplink.readport()
This function reads the TSP-Link
®
synchronization lines as a digital I/O port.
Type TSP-Link accessible
Affected by Where saved Default value
Function Yes
Usage
data = tsplink.readport()
data
Numeric value that indicates which register bits are set
Details
The binary equivalent of the returned value indicates the input pattern on the I/O port. The least significant bit of
the binary number corresponds to line 1 and bit B3 corresponds to line 3. For example, a returned value of 2 has
a binary equivalent of 010. This indicates that line 2 is high (1), and that the other two lines are low (0).
Example
data = tsplink.readport()
print(data)
Reads state of all three TSP-Link lines.
Assuming line 2 is set high, the output is:
2.000000e+00
(binary 010)

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English