Change Led colour

[jeff]

Hi,

I want to change the led colour according to the conditions.
1. if (Val(1007) = Val(1015))
{Led Green;}
else
{Red}
2. if (Val(1001)=Val(1002) && Val(1007)=Val(1015))
{Led Green;}
else if (Val(1001)=Val(1002) && Val(1007)!=Val(1015))
{led yellow;)
else if (Val(1001)!=Val(1002) && Val(1007)=Val(1015))
{led yellow;)
else if (Val(1001)!=Val(1002) && Val(1007)!=Val(1015))
{led red;)

May I know how to do it in Rapid Scada.

Thank you.

Jeff

[Mikhail]

Hi,
Create a new input channel of calculated type which uses a formula to calculate a number of color. Then use this channel in a scheme component to switch led color.

[Muhd Afham]

Hi,
How to create a led condition based on value from different channel. As example, if the value channel 1 is less than value in channel 2, led turn to red. if the value in channel 1 and channel 2 is equal, the led turn to green.

It is possible to do it using Rapid Scada?

Thank you.

[Mikhail]

Hi,

It is possible to do it using Rapid Scada?

Yes, you should create an extra input channel of the calculated type and use a forumula. For example: Val(1) < Val(2) ? 0 : 1

[jeff]

Hi,

Can you explain how the formula work as you shown in (example: Val(1) < Val(2) ? 0 : 1)?
How to set condition in rapid scada scheme for the led indicator regarding to the formula above?

Thank you.

[Mikhail]

Val(n) is described here.

Expression a ? b : c is usual for C++/C# and means if a then return b else return c

[Mikhail]

How to set condition in rapid scada scheme for the led indicator regarding to the formula above?

You need to create an new exrta channel in Administrator and bind a led to the new channel.

[jeff]

Sorry for late reply and thanks for your explanation. I get it and it works. Thank you.
Can I do it for 2 conditions?

[Mikhail]

Can I do it for 2 conditions?

Yes.
a ? b ? c : d : e

I forget how the above works ))

[jeff]

Thank you very much.
Hopes it work. Thanks again.

[Author]

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