Solar Simulation

​

Handle

use lager::LagerBox;

let lager = LagerBox::from_env()?;
let panel = lager.solar("solar1");

​

Methods

​

Method Reference

​

set() -> Result<()>

​

stop() -> Result<()>

​

set_irradiance(watts_per_m2: f64) -> Result<f64>

panel.set_irradiance(800.0)?;

​

set_resistance(ohms: f64) -> Result<f64>

​

irradiance(), mpp_current(), mpp_voltage(), resistance(), temperature(), voc()

​

Examples

​

Sweep irradiance across a day and check the charger tracks it

use lager::LagerBox;

let lager = LagerBox::from_env()?;
let panel = lager.solar("solar1");

panel.set()?;
for irradiance in [200.0_f64, 500.0, 800.0, 1000.0, 400.0] {
    let applied = panel.set_irradiance(irradiance)?;
    std::thread::sleep(std::time::Duration::from_secs(2));

    let (v, i) = (panel.mpp_voltage()?, panel.mpp_current()?);
    println!("{applied:>6.0} W/m2 -> MPP {v:.2} V, {i:.3} A, {:.2} W", v * i);
}
panel.stop()?;

​

Supported Hardware

​

Notes

• Every solar action re-asserts PV mode on the instrument before doing its work, including the reads. That makes even voc() slow, and it is why this net type has the widest timeout budgets in the crate: 120 seconds for set() and stop(), and 90 seconds for everything else.
• A solar net drives the same physical instrument a power-supply net can point at. The box serializes both under one per-address lock, so their SCPI traffic cannot interleave, but they are the same hardware.
• stop() releases the instrument’s remote lock. Skipping it leaves the front panel locked out for whoever walks up to the bench next.