Send command with button

[Dons]

My variable is so configured:

Input channel = 11094
Output Channel = 21094

Output channel is an OPC Device

I can set a new value with Scada server generator with command 21094 without problems.

Now I need to configure a button to set the variable value.

My settings are:
https://drive.google.com/file/d/1BB3jknGEMXYPqGcSXScBH1KqZO56aU9h/view?usp=sharing

https://drive.google.com/file/d/18jNd9xtNyu1A5jsMYLQx4A-gx0kxE_6z/view?usp=sharing

… but nothing happens.

Where is the problem ?

[Mikhail]

Hello,
The settings look OK. Check in ScadaServer.log that commands are received by the server app.

[Mikhail]

Screenshot of the input channel can be useful

[Dons]

Input channel

If I send a command on 21094 output channel, input channel 11094 is updated and the value is sent to the opc server. (OK)

If the output channel(60000) fornula is SetVal(11094,5) , only the local variable changes but doesn’t send the value to opc server.

[JW]

changing the value of input channel doesn’t send command to linked output channel.

if you need auto sync, you will need auto control module.

if you just want to send cmd to device and set value of an input channel at the same time once you press a button, you can create a formula

int CmdExample(int c, int v)
{
SetVal(c,v);
return v;
}

set the device and cmd number of out channel 60000 same as out channel 21094
and enable formula of out channel 60000,
CmdExample(11094,5)

[Mikhail]

I recommend to change channel type of the channels that are set only from formulas to the Calculated Discrete (or Calculated Real) type.

To send command according to some conditions and actions, Automatic Control Module is needed.

[Mikhail]

As I understand your case, command should be sent by button click. In this case Auto Control Module is not required. But you should correctly set the Command Number and Device fields of the output channels. Device is related to the OPC server.

[Author]

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