Any DIY PLC setups out there?

davidk74

Member
Dec 4, 2020
11
West Sacramento California
Pool Size
12000
Surface
Plaster
Chlorine
Liquid Chlorine
IM thinking of cannibalizing the relay from my timer and controlling it from a Click PLC. I may even put some load cells under the chlorine tank so I can stenner pump exact measurements. Probably over kill but a fun project. Anyone done anything like that?
 

ViennaTom

Member
Jan 26, 2021
12
Austria
Pool Size
60000
Surface
Vinyl
Chlorine
Liquid Chlorine
Hi David,
I am planning to add weigh cells with hx711 to my poolcontroller (ESP32 based) but did not receive them yet. If you are interested I can share the the code parts and experience later.
BR Tom
 
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randytsuch

LifeTime Supporter
Mar 29, 2008
286
Los Angeles, Ca
I put in a stenner at the beginning of the year. I'm using an outdoor smart plug to turn it on and off, so daily dosage is time based.
That's been working well. I just check chlorine once a week now, and its been fine every since I added the Stenner.

I have been looking at methods to decide if the Stenner tank is empty, considering ultrasonic or a non contact liquid level sensor.
I did look a little at load sensors, but the ones I saw were kind of expensive, and I don't think my budget manager would approve.

The ones I was looking at are fairly inexpensive, which is always a key factor in getting approval for pool automation toys.

Randy
 
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davidk74

Member
Dec 4, 2020
11
West Sacramento California
Pool Size
12000
Surface
Plaster
Chlorine
Liquid Chlorine
Hi David,
I am planning to add weigh cells with hx711 to my poolcontroller (ESP32 based) but did not receive them yet. If you are interested I can share the the code parts and experience later.
BR Tom
For sure,
IM going to start with the PLC just controlling the pool pump and then add functionality. I have not found weight cells that will meet my needs.
 

cmc0619

Gold Supporter
May 2, 2018
169
Cherry Hill, NJ
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool Edge-40
IM thinking of cannibalizing the relay from my timer and controlling it from a Click PLC. I may even put some load cells under the chlorine tank so I can stenner pump exact measurements. Probably over kill but a fun project. Anyone done anything like that?
Mine is pretty close. There are a few of us out there using the industrial style DIN parts. I used a Raspberry Pi but you could literally disconnect my pi, snap on a PLC and wire it up basically the same and use a Click or something. There's a link in my sig. Off the top of my head, I know @caroexx, @Katodude and @MyAZPool have other examples of PLC compatible setups.
 
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