Delta OrcaView GCL+ Programming help (Code in question posted)

[jmelvin]

Background & Objective:
The objective of this GCL+ code is to make a hanging fan coil (reheat only) which is ducted to OSA turn on automatically when it is +/- 1 Degree Fahrenheit outside of the temperature setpoint.
The problem is I think it is satisfying the code whatever setpoint is placed there, and I cannot figure out how to restrict the script to keep the fan OFF when the setpoint is reached.
This is my first attempt at automating these units, they had been set to run all day via the schedule and I hate inefficiency & waste!
Any input would be greatly appreciated, thank you!

Code Snippet:

//Renamed variables to make it easier for me to read what's going on
Variable RoomTemp
Variable Setpoint
'Heating Setpoint' = Setpoint
BACstat = RoomTemp

//Beginning of script
If
Schedule = On And (RoomTemp < Setpoint + 1) And (RoomTemp > Setpoint - 1) Then
'Fan Start Stop' = Off Else
'Fan Start Stop' = On
End If

There many ways to write this.

If sch1 = On Then
If OAT Between 'OAT_Setpoint' - 1 'OAT_Setpoint' +1 Then
'Fan_Start/Stop' = Off
Else
'Fan Start/Stop' = On
End If
Else
'Fan Start/Stop' = On
End If

You could also use a switch with a CO like bdivell said.
switch (FAN, CO1, 60, 50)

[CE-TECH]

I think this fella should probably call his normal control tech in. That is probably the most basic SOO I have ever seen.

I mean come on. Turn on Output when Temp < SP -1 then turn it off when Temp > SP +1? If you are a control tech then you, or someone you work with, has done this 1 million times

[Cujo67]

I'm a stationary engineer attempting to learn something new and exciting, pardon me for bruising anyones egos in the process. Perhaps my judgement was a bit cloudy as to joining a forum for help as a 2nd day novice... regardless I appreciate the help that has been given. Jmelvin I'll give that snippet a try on Monday, thank you.

[bdivell]

Hi Cujo67,

A little bit of advice, buy a DSC or DAC and work on it at home, If you want to learn controls for the most part it isn't done from 7 - 4:30.... I am not being negative just saying if you are unable to read code don't expect to be able to write it.

[jmelvin]

If you can get a GCL+ programming book. (Search Google) And if you have the ability to get into George U. Those are good starting places. I can send you some links.

Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

[CE-TECH]

I appologize Cujo. Just seems like a DIY-er type of question. Some of those make their way into the forums.
Try this. Unless I misunderstand what you want

If Schedule on then
Switch(Fan Start/Stop, Room Temp, SP-1,Sp+1)
Else
Stop Fan Start/Stop
Endif

[kontrolphreak]

Contact Trinity, they are your local SF Delta partner.

kontrol out

[Chris_Worthington]

I'm a stationary engineer attempting to learn something new and exciting, pardon me for bruising anyones egos in the process. Perhaps my judgement was a bit cloudy as to joining a forum for help as a 2nd day novice... regardless I appreciate the help that has been given. Jmelvin I'll give that snippet a try on Monday, thank you.

Cujo67,

There has been numerous suggestions and assistance given from the Members here in the "Open" section if this forum, However this thread has gone over the amount of help we are able to provide in this "Open" section of this site and the Thread is now closed.

Cujo67, try getting your post count up and then apply for pro membership where these sort of questions may be discussed in greater detail behind closed doors and out of the eyes of Goggle in our "Pro" sections.