REXYGEN Community Forum

scoobsalamander

Member

From: Belgium - Hulshout

Registered: 2015-10-27

Posts: 217

Non volatile memory for storing totals?

In my project I have some integrators running to totalize the kilowatts measured by means of a current trafo + voltage measurement.

All this is working fine but every time I download a change to my project I loose all the total values and after restart they start at zero again.

What would be the easiest/best way to store these values?

tomáš čechura

Administrator

Registered: 2016-02-22

Posts: 371

Re: Non volatile memory for storing totals?

Hey scoobsalamander!

You can try to use FB called SGSLP (Set, Get, Save and Load Parameters). For more details see documentation.

Cheers, Tomas

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Raspberry Pi as a miniature industrial PC. Analog and digital I/O, RS-485 and 1-Wire bus.

scoobsalamander

Member

From: Belgium - Hulshout

Registered: 2015-10-27

Posts: 217

Re: Non volatile memory for storing totals?

Wouldn't this result in a big amount of write/read cycles on my SD card?

Maybe I can constantly update a record on my MySQL dB (on external server) and during a restart of the RasPi the latest record will be read during start-up to give the block(integrator) an initial starting value......just a thought...

(but a possibility to keep values and parameters stored in a non-volatile memory I would like to put on the wishlist )