ScadaSchemeEditor – Button use

[leon]

Hi

I want to control ON/OFF separately with two buttons.
Action is set to send command now
It does not send commands according to command type(ON or OFF)
Will only send 0 (OFF)

Action is set to send command
working normally

Is it where I set the error?

https://imgur.com/a/tXwCUFO

• This topic was modified 7 years ago by leon.
• This topic was modified 7 years ago by leon.

[Mikhail]

Hi,
You should write a formula of an output channel which determines what commands to send depending on the current state.

[leon]

Hi
Can you demonstrate the formula settings?
Let output channel on or off or reverse settings.

Is there an article that can learn Formulas?
I have seen Using Formulas(roadmap) still don’t know how to use it.

[manjey73]

example in the formula base: NOT

public double NOT(double val)
{
    bool boolVal = val > 0;
    return Convert.ToDouble(!boolVal);
}

In the output channel, write NOT (Cmd) and your command on the button will be changed to the opposite. Works only with 0 or 1 that actually follows from the name of the formula.

It is not quite clear what you want to do with the separation of the buttons ?

[manjey73]

Command values

Or you can use the standard command buttons from this database

Sometimes the device should be fed not 0 or 1 but for example 256 or 512, then using the values for commands 1 and 2 additionally in the output channel multiply by 256 using the formula Cmd*256

• This reply was modified 7 years ago by manjey73.

[Mikhail]

Other way:
Assume you have an input channel #100 for state of your machine.
In this case formula for an output channel can be: Val(100) > 0 ? 0 : 1

Article about using formulas is http://doc.rapidscada.net/content/en/software-configuration/using-formulas.html

[leon]

Hi manjey73
Thank you very much, so I can understand why it is 256.
https://imgur.com/a/M6i0G0E

[leon]

Hi Mikhail
Thank you very much for your demonstration.
I have read Article about using formulas because I don’t understand the rules of formula.
Need some simple arithmetic examples to reference.

• This reply was modified 7 years ago by leon.

[manjey73]

I do not know what you have for the relay fee, I bought Chinese with Modbus in the documentation which was specified as on and off.
256 – off, 512 – on, 768 – toggle
I always gave the command 1 and multiplied by 768 and the relay changed its state. In other boards can be on different. Therefore, I try not to buy boards, which do not have a description, and then here on the forum there was an example when the Chinese mixed up the sequence of bytes of the checksum in Modbus

[leon]

System architecture
https://imgur.com/a/iqtz0F5

I found that it can be to on
Val(n)* 1

• This reply was modified 7 years ago by leon.

[leon]

New question
Can I define different buttons using different formulas in the same Number (19)?
https://imgur.com/a/K6Gfpt1

Can I omit the password?
https://imgur.com/NGl3BMG

• This reply was modified 7 years ago by leon.

[manjey73]

in WEB Main menu-Configuration-Require password when sending command

[Mikhail]

Please create different topic for different questions to avoid mess.

[Mikhail]

Can I define different buttons using different formulas in the same Number (19)?

A set of buttons is fixed for an output channel.

[leon]

Hi manjey73
Thank you for your hot reply.

[Author]

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