Connecting to PL303-P by Aimtti in Python

Instrument Card

Bench/System Linear Regulated DC Power Supply Single Output, 30V/3A, USB, RS232, LAN(LXI) and Analogue Interfaces

Device Specification: here

Manufacturer card: AIMTTI

TTi (Thurlby Thandar Instruments) is a leading manufacturer of electronic test and measurement instruments. These products are sold throughout the world via carefully selected distributors and agents in each country. We are located in Huntingdon near to the famous university city of Cambridge, within one of the high technology areas of the United Kingdom.

• Headquarters: UK
• Yearly Revenue (millions, USD): 9000
• Vendor Website: here

Demo: Measure a solar panel IV curve with a Keithley 2400

Connect to the PL303-P 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.

QCodes

Here is a Python script that uses Qcodes to connect to a PL303-P Power Supply:

from qcodes.instrument.visa import VisaInstrument
from qcodes.instrument_drivers.aimtti.AimTTi import AimTTi

# Connect to the power supply
power_supply = AimTTi("power_supply", "TCPIP0::192.168.1.1::inst0::INSTR")

# Print the instrument identification
print(power_supply.get_idn())

# Set the voltage and current values
power_supply.ch1.volt(5)
power_supply.ch1.curr(0.5)

# Enable the output
power_supply.ch1.output(1)

# Disconnect from the power supply
power_supply.close()

This script first imports the necessary modules and classes from Qcodes. Then, it creates an instance of the AimTTi class, which represents the PL303-P Power Supply. The constructor takes two arguments: the name of the instrument (power_supply) and the VISA resource address (TCPIP0::192.168.1.1::inst0::INSTR in this example).

The script then prints the instrument identification using the get_idn() method.

Next, it sets the voltage and current values of channel 1 using the volt() and curr() methods, respectively.

After that, it enables the output of channel 1 by setting the output parameter to 1.

Finally, the script closes the connection to the power supply using the close() method.

Note: Make sure to replace the VISA resource address (TCPIP0::192.168.1.1::inst0::INSTR) with the actual address of your power supply.