Auto Control Module : Multichannel Trigger between specific time

[Mikhail]

Hi,
I suggest some optimization:

1. The above script creates an array on every call. It’s better to initialize the array only once.

2. Use the TimeOfDay property instead of creating new DateTime manually, and compare time spans.

[Mikhail]

Alternatively, use Auto Control Module and a time trigger.

[rapidscadaaks]

Hi Mikhail

Is it possible to use time trigger in ACM to write 0 or 1 to a channel ?

[Mikhail]

Hi,
Yes, it’s possible. Please describe the entire task, so I could suggest the better way. What do you plan to do with 0 and 1?

[rapidscadaaks]

Hi Mikhail

There are certain multichannel triggers already configured in ACM. I want these multichannel triggers to be active at certain times during the day, say at 0800, 1000, …. 2130 for a period of 30 minutes each time. I cannot use time trigger directly since combining time trigger with multichannel trigger is not feasible.
I therefore considered creating a channel which gets updated to 1 at the required times and 0 at other times.
If feasible, I would like to create a time trigger to write 1 in a created channel at required times and another time trigger to write 0 to the same channel 30 minutes after the “1” time. This channel would be added to the multichannel triggers and therefore would get triggered only if the value of the channel is 1.
Please guide
Thanks

• This reply was modified 3 weeks ago by rapidscadaaks.

[manjey73]

The time has a Minutes parameter, so you can check for >=0 && <=30 in the script.
and in addition to checking the required hour.

[Mikhail]

Hi,
Try the function below (not tested):

function double TimeToGetHigh()
{
  int hour = Timestamp.Hour; // the Timestamp is a built-in property
  return Timestamp.Minute == 0 && (hour == 8 || hour == 12 || hour == 18 || hour == 22)
    ? 1
    : 0;
}

Note that UTC hour is used.
The channel input formula: TimeToGetHigh()
Channel type is calculated.

• This reply was modified 2 weeks, 6 days ago by Mikhail.

[rapidscadaaks]

Hi Mikhai
Many thanks. Just need a small tweak so that value 1 remains as 1 for a duration of 5 minutes each time. I think

==0 will need change

Thank you once again

[manjey73]

return (Timestamp.Minute >= 0 && Timestamp.Minute < 6) && (……)

[Mikhail]

Hi,
So the result would be something like

public double TimeToGetHigh()
{
  int hour = Timestamp.Hour; // the Timestamp is a built-in property
  return (Timestamp.Minute >= 0 && Timestamp.Minute < 6) && (hour == 8 || hour == 12 || hour == 18 || hour == 22)
    ? 1
    : 0;
}

• This reply was modified 2 weeks, 4 days ago by Mikhail.

[rapidscadaaks]

Hi

Thank you. Just one last question on this topic :
Rapidscada stopped working with I added the above script. When I replaced “function” with “public”, Rapidscada started working. Please explain.

Thanks

[Mikhail]

Hi,
In Rapid SCADA 6 the script functions must be public. Otherwise the calculation engine cannot see them.

[Mikhail]

Other explanation is that I’ve written too many code in JavaScript recently, so I messed up C# and JavaScript 🙂

[rapidscadaaks]

Thanks Mikhai

[Author]

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