[Mikhail]

I’ve never met such thread issues before. To be honest, I have no advice. You should to dig deeper ))

What libraries do you use to work with OPC UA? Could you provide a link?

[Mikhail]

The dashboard plugin works after installation and Registration for Chart Pro

If you place several charts to a widget of a dashboard, Chart Pro is needed to show them. As I remember, the error message is not clear if Chart Pro is not installed.

[Mikhail]

I saw is that if you put a time value lower than the total cycle of data adquisition for all devices, you get 2 records each time

Could you explain this case more detailed and provide screenshots of your settings?

[Mikhail]

First of all, it is needed to analyze your system, specify work cases and then decide if the software should be optimized for the system.

[Mikhail]

Hi,
A research is required to find a bottle neck. May be you need to develop your own plugin that access existing events. The web app support custom plugins.

[Mikhail]

but the page showed “reCAPTCHA validation failed” while Geting a trial key.

Can you use VPN to access the webpage?

[Mikhail]

Hello,

(1)what is the viewIDs in the file DashboardExample1.xml
I had created a table “dsboard.tbl” with the ID “23”, and it can be viewed in the web.

These are IDs of the views that contain channels of a widget. They are needed to access control.

(2)How to use dashboard plugins?

Use opens and watch them, like http://demo.rapidscada.net/plugins/Dashboard/Dashboard.aspx?key=allusers-DashboardDemo

(3)When I used chart pro, the “Main Menu > Registration > Dashboard” can be seen. but the page showed “” while Geting a trial key

Please provide a screenshot. You can put a link to an image hosting here.

[Mikhail]

Hi,
The time stamps are different. It means there were 2 inserts close by time for every channel. Communicator may send data twice, because it sends all the data again by the specified interval. You can change this interval in the settings of Communicator.

[Mikhail]

I suppose that 40 events per second is too much, and the software needs special performance optimization for your case. Why do you need an event for every change of a channel? You can export data to the external database without generating events.

[Mikhail]

Hi,
How many events are stored per day or per hour? Please provide screenshots and logs.

[Mikhail]

2. Any web page is opened by a user click. This is a bad approach to open a web page accidentally.

3. You can use different web servers that support SMTP.

[Mikhail]

jonbonjovi, manjey73 is the author of that driver.

they communicate via Modbus/TCP but I am still new to the protocol

It is simple. I recommend the official specs here http://www.modbus.org/specs.php to understand how it works.

[Mikhail]

Hi,

Thank you!

like AlarmHi and AlarmLo to scale trends and gauges

You can use Stat field to realize where values are too high or too low. Or you mean something else?

find namespace definition for ClientAPI

If you talk about JavaScript namespace, it is here. Service implementation is here.

[Mikhail]

Why don’t associate directly Tag path (ex: Group1.group2.item1.item2.Int8) with an unique identifier for web server ?

Currently, tags are bound to input channels by the Signal field. To allow binding by tag name, the configuration database have to be modified.

DLL is called with MTA Thread mode, and it would be on STA.

As I understand, OPC UA doesn’t use COM objects, so thread mode is not a problem here. Is it true or not?

to understand which function are called by KP when it’s try to load DLLs

Do you know how to debug DLLs and set breakpoints? If not, I will give you a clue. It will help to understand. Also use WriteToLog method.

[Mikhail]

I can see in the screenshot that the Editor versions are different.

[Author]

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