sdm_pass_fail_test.py

#! /usr/bin/env python3
import pyvisa as visa

def main():
    # Connect to the device
    rm = visa.ResourceManager()
    instrument = rm.open_resource("TCPIP0::192.168.10.94::inst0::INSTR") # replace with IP address of your device
    instrument.timeout = 200000
    device_id = instrument.query("*IDN?")
    print(device_id)
    # Set the device to AC
    instrument.write("CONF:VOLT:AC")
    # Set the device to 200mV
    instrument.write("VOLT:AC:RANG 0.2")
    # Set the number of measurements to 1
    instrument.write("SAMP:COUNT 1")
    # Read the voltage, this returns a list of voltages, the first element is the voltage, if you increase the sample count it will contain multiple values
    voltage = instrument.query_ascii_values("READ?")
    print(f"Voltage: {voltage}")
    # Compare the voltage to the expected value
    expected_value = 0.015
    # We want the voltage to be within 5% of the expected value
    if abs(voltage[0] - expected_value) < expected_value * 0.05: # We use [0] because we only have one value, and we want to compare it to the expected value
        print("Test passed")
    else:
        print("Test failed")
    # Show how many percent the voltage deviates from the expected value with 2 decimal places
    print(f"Percentage deviation: {abs(voltage[0] - expected_value) / expected_value * 100:.2f}%")
    # Close the connection
    instrument.close()

if __name__ == "__main__":
    main()