“IF” Formula in channels

[rapidscadaaks]

Hi

Is it possible to use “if” formula in channels? If so, please assist in syntax.

Thanks

[Mikhail]

Hi,
For example
Cnl > 100 ? 1 : 0

[rapidscadaaks]

Thanks for the tip. Please advise how to use data of 2 channels for returning 1 or 0

Many thanks in advance

[Mikhail]

> how to use data of 2 channels for returning 1 or 0
Could you provide an example as text?

[rapidscadaaks]

Hi
I wanted guidance for the following example :
Channel AA is having value of 0 or 1
Channel BB is having a value between 0 and 4
I would like Channel CC to return 1 if Channel AA is 1 and Channel BB is <=2 or >=3.5 else 0

Thanks in advance

[rapidscadaaks]

I created a Calculated Channel and observed that (||) works but (&&) does not work. Please guide

Thanks

[Mikhail]

Hi,
Both || and && work for boolean expressions.
For more info, check the error in ScadaServer.log.

[rapidscadaaks]

Please guide for the following example:
Channel AA is having value of 0 or 1 coming from a script which mentions “double”
Channel BB is having a value between 0 and 4
I would like Channel CC to return 1 if Channel AA is 1 and Channel BB is <=2 or >=3.5 else 0

Thanks in advance

[Mikhail]

Hi,

Channel CC formula could be
Cnl(101) == 1 && (Cnl(102) <= 2 || Cnl(102) >= 3.5) ? 1 : 0
101 is AA.
102 is BB.
Not tested.

[rapidscadaaks]

Thanks Mikhail for your revert which is extremely helpful.
Just one question : what is the difference between using Cnl(101) and Val(101) ?

[Mikhail]

Cnl(101) is a mistake, use Val(101).

[Author]

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