AWC code using ATK and FMM optical switches

I need some help to review this code and make sure that there are no glaring errors. I am trying to do a favor for someone and help program an AWC on a tank that is a couple hundred miles away from me. I have my own AWC, but my code will not work for this particular setup. I had to modify my code extensively because my system, due to its configuration, has to fill first and then drain. It also has momentary switches on a BoB that allow the AWC to be run on demand and SW to be mixed, which I don't need here. Below is a copy of the code that I am planning to try on this system. This system should drain and then refill during the AWC. All of the float switches are defined at the top of the left column. Physical and virtual outlets are defined in the right column, with a short explanation of what each line is doing. My main concern is that I want to make sure the code will function as desired. I don't want any surprises. Thank you for the help.

ATO_LO ATO_HI SumpLo SwResL Waterchange Fallback OFF Set OFF If Output AWCDrain = ON Then ON Defer 006:00 Then OFF If Output AWCTIME = ON Then ON AWCTIME Fallback OFF Set OFF If Time 16:00 to 16:01 Then ON Defer 001:40 Then ON AWCDrain Fallback OFF If Output WaterChange = ON Then ON If Output WaterChange = OFF Then OFF If Output DrainDone = ON Then OFF When On > 001:00 Then OFF DrainDone Set OFF If SumpLo OPEN Then ON If SwResL OPEN Then ON If Output WaterChange = OFF Then OFF Defer 006:00 Then OFF AWCFill Fallback OFF If Output WaterChange = ON Then ON If Output WaterChange = OFF Then OFF If Output AWCDrain = ON Then OFF If Output FillDone = ON Then OFF FillDone If ATO_LO CLOSED Then ON If ATO_LO OPEN Then OFF If ATO_HI CLOSED Then ON If Output AWCDrain = ON Then OFF If Output WaterChange = OFF Then OFF Defer 006:00 Then OFF SumpPump Fallback OFF If Output AWCDrain = ON Then ON If Output DrainDone = ON Then OFF SWResPmp Fallback OFF If Output AWCFill = ON Then ON If Output FillDone = ON Then OFF ATK Fallback OFF Set OFF If ATO_LO OPEN Then ON If ATO_HI CLOSED Then OFF When On > 005:00 Then OFF Defer 000:10 Then ON Defer 000:04 Then OFF Min Time 060:00 Then OFF If Output WaterChange = ON Then OFF

Lower float switch for normal water level on ATK Upper backup float switch for ATK if ATO_LO fails Low opt switch on FMM for WC to stop draining Float switch at bottom of fresh SW drum on BoB Virtual Outlet (VO) to turn on WaterChange Turns OFF if communication is lost with Apex Sets initial state to OFF before following code Keeps the WC running Keeps VO on for six minutes during water change Turns WC on automatically at correct time VO to start WC at set time Turns OFF if communication is lost with Apex Sets initial state to OFF before following code Says to turn on WC at 16:00 Delays command until 16:01:40. Holds button for 20 seconds to start AWC. VO to start draining Turns OFF if communication is lost with Apex If WC VO is ON Then it is ON If WC VO is OFF Then OFF Turns OFF when drain is done Turns OFF when on > 1 min. Saves pump from running dry if SwResL fails. Fill takes 30 seconds. VO that stops draining of water Sets initial state to OFF before following code If Low Float Switch is dry drain is done If no fresh saltwater, stops WC If WC VO times out then stops WC Waits 6 min to turn stop the process. VO that fills with fresh saltwater Turns OFF if communication is lost with Apex If WC VO is ON Then it is ON If WC VO is OFF Then OFF Cannot drain and fill at the same time Turns off when refill is complete VO that stops filling Stops filling at lower float switch on ATK Keeps filling until lower ATK float switch is reached Stops filling if lower ATK float switch fails Cannot drain and fill at same time If WC VO times out then stops WC Waits 6 min to stop the process, giving time for WC to finish. Pump to remove saltwater Turns OFF if communication is lost with Apex If VO is ON then drain If finished draining then OFF Fresh saltwater pump in barrel Turns OFF if communication is lost with Apex Turn on to refill with water Turn OFF when finished ATK programming Turns OFF if communication is lost with Apex Sets initial state to OFF before following code If lower ATK switch is dry then ON If high ATK switch is wet then OFF Turn OFF if running > 5 minutes Do not turn back ON for at least 10 seconds ATK will run for at least 4 seconds before turning OFF ATK will not run for at least 60 min after turning OFF Turns OFF ATK if WaterChange is ON to prevent filling with RODI instead of SW

Something is screwed u pl with your formatting and I can't make heads or tails if what you posted.

Sent from my SM-G965U using Tapatalk

I did not realize that it looks fine in my computer's browser, but if you look at it on the mobile site nothing lines up. No wonder you can't understand it. I will have to get rid of the columns and try this again. Thanks.

Here is all of the outlets without the explanation of the code. Let me know if this is viewable. If it is not I will try again. Thanks again.

The names of the float switches are below:
ATO_LO - Lower float switch for normal water level on ATK
ATO_HI - Upper backup float switch for ATK if ATO_LO fails
SumpLo - Low opt switch on FMM for WC to stop draining
SwResL - Float switch at bottom of fresh SW drum-empty on BoB

Waterchange
Fallback OFF
Set OFF
If Output AWCDrain = ON Then ON
Defer 006:00 Then OFF
If Output AWCTIME = ON Then ON

AWCTIME
Fallback OFF
Set OFF
If Time 16:00 to 16:01 Then ON
Defer 001:40 Then ON

AWCDrain
Fallback OFF
If Output WaterChange = ON Then ON
If Output WaterChange = OFF Then OFF
If Output DrainDone = ON Then OFF
When On > 001:00 Then OFF

DrainDone
Set OFF
If SumpLo OPEN Then ON
If SwResL OPEN Then ON
If Output WaterChange = OFF Then OFF
Defer 006:00 Then OFF

AWCFill
Fallback OFF
If Output WaterChange = ON Then ON
If Output WaterChange = OFF Then OFF
If Output AWCDrain = ON Then OFF
If Output FillDone = ON Then OFF

FillDone
If ATO_LO CLOSED Then ON
If ATO_LO OPEN Then OFF
If ATO_HI CLOSED Then ON
If Output AWCDrain = ON Then OFF
If Output WaterChange = OFF Then OFF
Defer 006:00 Then OFF

SumpPump
Fallback OFF
If Output AWCDrain = ON Then ON
If Output DrainDone = ON Then OFF


SWResPmp
Fallback OFF
If Output AWCFill = ON Then ON
If Output FillDone = ON Then OFF

ATK
Fallback OFF
Set OFF
If ATO_LO OPEN Then ON
If ATO_HI CLOSED Then OFF
When On > 005:00 Then OFF
Defer 000:10 Then ON
Defer 000:04 Then OFF
Min Time 060:00 Then OFF
If Output WaterChange = ON Then OFF

Is there any particular reason your friend needs to do a drain then fill method vs continuous? Your approach is quite complex for a newer user and all that really saves him about a 2-5% reduction in saltwater use.

Sent from my SM-G965U using Tapatalk

He previously had an AWC and ATO that someone helped him build, but it had started to malfunction. There were problems with the float switches and the BoB. He just purchased a new BoB, as well as an ATK to replace the ATO, so this looked like a good opportunity to redo the AWC. He could use something like the DOS, but this way allows him to save some money on equipment and stick with a process he knows. He has been changing 5 gallons of water per day in a 300 gallon system.

Why are you deferring the drain done and fill done for 6 minutes? 10-30 seconds would make sense but 6 minutes doesn't.

Your water change outlet should be on long enough for the full cycle plus a small buffer. How long does the drain and fill take normally?

Sent from my SM-G965U using Tapatalk

Fill will take about 90 seconds and drain takes about 60 seconds. How much extra time do you think is appropriate to add as a buffer? Do you see any other blatant errors in the code? I have already had him physically install the ATK and the float switches, as well as contact support to update his Apex Classic and setup the ATK in fusion. I am just trying to do my best to make sure that when we enable the water change there will not be a catastrophic failure. Your help is greatly appreciated.

I can't get it to copy cleanly to edit, so I will just show what the control methodology should be.

A water change enable outlet should be on for 6 minutes. This should be supervised by conductivity, high and low sump levels, and low NSW reservoir but use a min time to let it finish if levels were good at the start.

An enable drain should be on for the first 3 minutes.

An enable fill should be on for the last 3 minutes.

The drain outlet should be on when allow drain is on and supervised by the low level float, low NSW reservoir. A short defer of 10 seconds or so might be worthwhile.

The fill outlet should be on when allow fill is on and supervised by the normal level float. A short defer of 10 seconds or so might be worthwhile.

Sent from my SM-G965U using Tapatalk