SendStandardCommand, SendBinaryCommand, SendRequestCommand

[Jayan Mathew]

What is the userID parameter in the following methods of ServerComm class:
SendStandardCommand, SendBinaryCommand, SendRequestCommand

Whether it is same as serverUser parameter in CommSettings constructor or something else?
Also is userID mandatory (What is its significance)?

[Mikhail]

It is an ID of a user from the configuration database which you can see in Administrator. You can set it to 0 means undefined. User ID is just an information who send a command.

[Jayan Mathew]

Hi Mikhail, thanks for the clarification.

One more related question:
Is there some equivalent (for the above commands) for a non-TCP (or location independent) situation?

[Mikhail]

Hi,
Could you provide more details or example of the situation?

[Jayan Mathew]

Using ScadaData.dll, I can get output channels from ctrlcnl.dat file.
Suppose I want to send some commands to that channels.

[Mikhail]

In this case you can use SendStandardCommand, SendBinaryCommand and SendRequestCommand methods which establish TCP connection with SCADA-Server. Why you need non-TCP way of sending commands?

[Jayan Mathew]

Hi Mikhail,

Because, I just wanted to avoid the connection settings (CommSettings), in the same way I can read current values. May be also because I am not fully aware of its architecture.
Still, I agree that the TCP method is more generic and usable in a wide sense.
Thanks.

[Mikhail]

Hi,
You can create special files. Try to stop SCADA-Server then send commands using Communicator. You can see the files in C:\SCADA\ScadaComm\Cmd
There is an example how to do it.

• This reply was modified 7 years, 6 months ago by Mikhail.

[Jayan Mathew]

That is a useful piece of information. Thanks for sharing.

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