<div dir="ltr"><div>Hello all,</div><div><br></div><div> In issue <a href="https://github.com/networkupstools/nut/issues/1201">https://github.com/networkupstools/nut/issues/1201</a> a point was raised recently by the author of modbus drivers for Huawei devices, that while many online UPS systems support ECO mode (where the mains output
bypasses the UPS during normal operation, and is only handed over to the
UPS automatically during a power failure), it seems this is not currently a concept in NUT data/state model.</div><div>
<p dir="auto">> The basic standardization items needed are:</p>
<ol dir="auto"><li>A <code>ups.status</code> flag for ECO mode, currently there's no standard. I looked around the codebase and found many drivers already use the flag <code>OL ECO</code>, so I think we could settle on that.
<ul dir="auto"><li>But with a caveat - the ECO status flag only appears when the UPS is
online, and can disappear when it's on battery. But this is how many
UPS units report the current power status - the register only has a
value for "online ECO", not "battery ECO" (which is understandable,
since it doesn't really make sense).</li></ul>
</li><li>Instant commands for entering and exiting ECO mode. Currently NUT doesn't have standardized instant commands for that.</li></ol>
</div><div><br></div><div> Does the esteemed NUT developer community have some constructive opinions and ideas about this? After all, naming is one of the hardest problems in Computer Science ;)</div><div><br></div><div>Thank you all in advance,</div><div>Jim Klimov<br></div></div>