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|
-------------------------------------
-- lxi-tools --
-- https://lxi-tools.github.io --
-------------------------------------
-- Example: Data logging from a NGM202 PSU for 25 seconds at 10 Hz
-- Connect to power supply
psu = lxi_connect("192.168.0.107", nil, nil, 2000, "VXI11")
print("Power Supply ID = " .. lxi_scpi(psu,"*IDN?"))
-- Set power supply voltage on channel 1 to 5V
lxi_scpi(psu, "voltage 5.0, (@1)")
-- Turn on power supply
lxi_scpi(psu, "output on")
-- Wait for power to stabilize
lxi_msleep(100)
-- Setup line chart and clock
chart0 = lxi_chart_new("line", -- chart type
"PSU Channel 1 Data Log", -- title
"Time [ s ]", -- x-axis label
"Current [ I ]", -- y-axis label
25, 1, 800) -- x max, y max, window width
clock0 = lxi_clock_new()
-- Capture and plot samples at 10 Hz for 25 seconds
clock = 0
while (clock < 25)
do
current = lxi_scpi(psu, "measure:current? (@1)")
current = tonumber(current)
clock = lxi_clock_read(clock0)
lxi_chart_plot(chart0, clock, current)
lxi_msleep(100)
end
-- Save data
lxi_chart_save_csv(chart0, "chart0.csv")
lxi_chart_save_png(chart0, "chart0.png")
-- Cleanup
lxi_clock_free(clock0)
lxi_chart_close(chart0)
-- Turn off power supply
lxi_scpi(psu, "output off")
-- Finish
print("Done")
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