Is it possible to have 2 Zones open at the same time on OpenSprinkler

[AndreasSprink]

Hello,

I have the below:
* OS3.0 DC-powered (Attached image)
* 1 Zone Expander

I have successfully created code that runs 10 Zones one after the other for 5 minutes each.

I have connected those on Zone 1-8 on the main controller and 1-2 on the Zone expander.
Now is my question and ideá this. There is a big “hose system” for those 10 Zones which has a small leakage in water. (Even if there isn’t a leakage it could be in the future)

What I am trying to do is to use a valve on Zone 3 on the Expander which is the MAIN valve where the water comes first in the system like this:

WATER FLOW SOURCE —-> MAIN VALVE(Zone 3 on the Expander) —-> “hose system” for 10 Zones

If the Water program will run for 50 minutes(10 Zones). I am trying to open the MAIN VALVE(Zone 3 on the Expander) AT THE SAME TIME for 50 minutes as it takes for the “hose system” for 10 Zones to run, – so this valve will work as a safety to stop the water from running into the “hose system” for 10 Zones which has a small leakage when the program has finished!

I have tried to create 2 programs on the OpenSprinkler:
1. The first program runs the 10 Zones for 5 minutes each (This works perfectly!)
2. Now I tried to install and connect the MAIN VALVE(Zone 3 on the Expander) where I created a program that would open this valve for 50 minutes with the same start time as the first program.

But when I run this, nothing happens which leads to me wondering if the MAIN VALVE(Zone 3 on the Expander) opens, – then the 10 Zones (valves) will be closed or close?

Essentially, I wonder if there is a solution to this in any possible way. Is it true that the OpenSprinkler can’t have 2 valves open at the same time or if there is a workaround to use the sensor connections etc on the controller to acheive this functionality?

I am open for any possible solution.

Thank you
Andreas

Attachments:

1. 

   opensprinkler.jpg
   

[AndreasSprink]

Essentially to simplify my question in previous post:

1. I need to open Zone 10.
2. >= 1 second after, I will run a program (Station 0-9) which runs for 50 minutes.
3. Now I need to close Zone 10.

That would be the exact function that I am after, so Zone 10 must then be open during the whole 50 minutes.

The program URL that I create looks like this at this moment which sequentially opens Zone 0-9 for 5 minutes each:

[code]http://15.1.0.11:80/cp?pw=xxx&pid=-1&v=[193,4,0,[1020,-1,-1,-1],[300,300,300,300,300,300,300,300,300,300,0,0,0,0,0,0,0,0,0,0,0,0,0,0]]&name=TestProgram&endr=1&from=33&to=415
[/code]

How would this be possible to do?

[DaveC]

It is possible to have 2 valves open at the same time, but I think what you are trying to do could be done using the Master Station capability.
I don’t use a master in my operation so it would be good for someone to validate the following:
If you designate Zone 10 (Expander Zone 3) as a Master Station with the Master On Adjustment of -5 (open Master 5 seconds before the zones that use it)
AND specify that Zones 0-9 should Use Master, I think you will get the behavior you are looking for.
When your program runs, the Master will open 5 seconds before the first zone runs. Since the zones all run sequentially the Master will stay open until the last zone finishes. It will then close. You could use the Master Off Adjustment to have it close 5s after the last zone completes if appropriate.

[AndreasSprink]

Thank you DaveC!

I managed to find out that it was possible to put Zones in different groups using the below URL command:

http://os-ip/cs?pw=xxx&g0=1&g1=1&g2=1& etc… g10=255

So there for example: “g0” is Zone 0, “g1” is Zone 1 etc where I put all Zones 0-9 to Group 1.
Then I put Zone 10 in Group ID: 255 which can run in Parallell independently of Zone 0-9.
So Zone 0-9 will run sequentially as usual. Let say the total time here is 50 minutes.
Then I have just put Zone 10 to run for 50 minutes. So the valve opens and closes when the program is running.

I tried it out today in the water system and it did work out.

Thank you for your help!

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