Connecting to Keithley 2700 by Keithley in Python

Instrument Card

The Model 2750 offers extended low ohms measurement capability and supports up to 5 7700 Switch cards for a maximum 200, 2-pole multiplexed channels. It also contains a built-in 20mV clamp that helps protect sensitive devices from damage and prevents self-heating errors during dry circuit testing.

Device Specification: here

Manufacturer card: KEITHLEY

Keithley Instruments is a measurement and instrument company headquartered in Solon, Ohio, that develops, manufactures, markets, and sells data acquisition products, as well as complete systems for high-volume production and assembly testing.

• Headquarters: Cleveland, Ohio, United States
• Yearly Revenue (millions, USD): 110.6
• Vendor Website: here

Demo: Record voltage over time with an Agilent 34401A multimeter

Connect to the Keithley 2700 in Python

Read our guide for turning Python scripts into Flojoy nodes.

Flojoy

PROTOCOLS > SCPI

📄 IDN

Query a device's identity through the universal *IDN? SCPI command.

📄 MEASURE VOLTAGE

Query an instrument's measured output voltage, such as a DMM or power supply.

📄 SCPI WRITE

Write a SCPI command to a connected bench-top instrument and return the result.

PyMeasure

from pymeasure.instruments.keithley import Keithley2700

# Connect to the Keithley 2700
keithley = Keithley2700("GPIB::1")

# Perform measurements or other operations with the instrument
# For example, you can read the state of the channels
state = keithley.get_state_of_channels([101, 102, 103])
print("State of channels 101, 102, 103:", state)

# Close specific channels
keithley.closed_channels = [101, 102, 103]

# Open all channels
keithley.open_all_channels()

# Close rows to columns on the 7709 connection matrix
keithley.close_rows_to_columns([1, 2], [1, 2])

# Open rows to columns on the 7709 connection matrix
keithley.open_rows_to_columns([1, 2], [1, 2])

# Perform system operations
keithley.beep(1000, 1)
keithley.triad(1000, 1)
keithley.reset()

# Display closed channels on the instrument's display
keithley.display_closed_channels()

# Disconnect from the instrument
keithley.disconnect()

This script connects to the Keithley 2700 using the GPIB address “GPIB::1”. It then performs some operations with the instrument, such as getting the state of channels 1 and 2, closing all channels, and finally disconnecting from the instrument.

Note that you may need to install the pymeasure package before running this script. You can install it using pip install pymeasure.