Web application output value

[mjorge89]

Hi,

I need to get the information in the web application, of the output channel. If I use the output channel or corresponding input channel id in the scheme editor, it will allway get “0”. The output channel receve commands from webapplication and externel device through communicator.

[Mikhail]

Hi,
Could you clarify your question?

[mjorge89]

I need for example a dinamic text to show info or a condition on dinamic image to know when a send a command the value in the command.
for example: in web server.
“imgx” Action-“send command” to output_channel-101 command_value-“0;1”.
“imgy” Condition 101=1 “turns green”

[mjorge89]

I tried using “SetVal(102, CmdVal)” on Output channel 101, (102 Input Channel is a calculated real).

Give me this error in server log file:

2017-08-02 07:31:50 <POSTO117><SYSTEM><ERR> Error compiling the source code of the formulas:
Line 483, column 100: error CS1502: A melhor correspondência do método sobrecarregado para ‘System.Convert.ToDouble(object)’ tem alguns argumentos inválidos
Line 483, column 117: error CS1503: Argumento 1: não é possível converter de ‘void’ em ‘object’
See the file C:\SCADA\ScadaServer\Log\CalcEngine.cs with the source code
2017-08-02 07:31:50 <POSTO117><SYSTEM><ERR> Normal program execution is impossible.

[manjey73]

Do not use the entry formula in the actual (real) input channel.

What do you have in the specified row CalcEngine.cs ?

• This reply was modified 6 years, 8 months ago by manjey73.
• This reply was modified 6 years, 8 months ago by manjey73.

[mjorge89]

the line in CalcEngine.cs: “public void CalcCmdVal101(ref double cmdVal) { try { BeginCalcCmdData(101, cmdVal, null); cmdVal = Convert.ToDouble(SetVal(102,1)); } finally { EndCalcCmdData(); }}”

Im placing the formula in the output channel 101 (standard).

• This reply was modified 6 years, 8 months ago by mjorge89.

[mjorge89]

the cols refered in log are this “Convert.ToDouble(SetVal(102,1));”

[manjey73]

In the output channel specified formula SetVal(65, Cmd)
In CalcEngine.cs entry looks like this:
public void CalcCmdVal65(ref double cmdVal) { try { BeginCalcCmdData(65, cmdVal, null); cmdVal = Convert.ToDouble(SetVal(65,Cmd)); } finally { EndCalcCmdData(); }}

Why do you have so ?

Convert.ToDouble(SetVal(102,1))

[manjey73]

Show a screenshot of the input channel 102 and specify what type of channel ?

[mjorge89]

Sory I has testing SetVal(102,1).

if I set SetVal(102.Cmd) I get in CalcEngine.cs
“public void CalcCmdVal102(ref double cmdVal) { try { BeginCalcCmdData(102, cmdVal, null); cmdVal = Convert.ToDouble(SetVal(102,Cmd)); } finally { EndCalcCmdData(); }}”
The same as you

[manjey73]

The type of the input channel should be calculated (I do not know how it is in the English version is called)

That is, it should not be data from some device and it should be a formula Val(102)

• This reply was modified 6 years, 8 months ago by manjey73.

[mjorge89]

screenshot of input and output cannels ohttps://1drv.ms/f/s!AlaelqREvpyek7tw3LEq5PUX46Yb1A

the 102 input channel is “Calculated Real”

[manjey73]

If the channel type is selected correctly for the input channel, there was a similar problem. It is necessary to update all the databases had something to do with them.
Also had an error in CalcEngine.cs.
Try the same formula on a different computer and a new installation of Scada to verify

[mjorge89]

thisis is the Output channel

[manjey73]

The presence or absence of the formula Val(102) in the entrance channel should not affect error and the inability of the server.
However, without this formula in the calculated input channel not received value from the output channel.

• This reply was modified 6 years, 8 months ago by manjey73.

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