[Mikhail]

Please provide a screenshot of your configuration related to this issue.

[Mikhail]

What recommendations are you referring to?

First of all, copy here your actual communication log where we can see sending a command.
If the PLC answer OK, you can:
1. Compare binary packets with other software that works well.
2. Contact the manufacturer for support.

[Mikhail]

I ended up going to

Please don’t mention other products on this forum.

[Mikhail]

Try this dll.

[Mikhail]

Also, is there a way of recording only one condition of the event?

Currently no. Some modifications should be done to implement it.

[Mikhail]

Hi,

Event color depends on status color of the input channel. I mean you should change colors of Off-On values.
Create your own record in the Units table, for example,
Normal; Alarm; –
And use formulas for setting the status of the input channel:
Cnl; Cnl > 0 ? 114 : 13

[Mikhail]

Hennie, you may try the above recommendations.

[Mikhail]

Hi,

Read this dialog about building the project.

You should use the existing components as examples. Gauge and level components already available here.

Here on the forum I can answer particular technical questions. Be free to ask. Detailed individual lessons are available for a fee.

[Mikhail]

Thank you for the screenshots. I will send you a special version of the OPC driver and we can check again and compare info from OPC analyzer.

[Mikhail]

Hi,

I will send you a test version of KpOpc.dll during the week 22-28 of October.

[Mikhail]

Hi,
Thank you for the information about the solution.

[Mikhail]

Is it possible to write with IOPCSyncIO::Write?

I don’t think that this is possible.
In the source code of KpOpc.dll driver I just use daServer.Write(new Opc.Da.ItemValue[] { itemVal }); and the library made by OPC Foundation choose lo-level method WriteVQT.

I can try setting Quality field of the item being written.

[Mikhail]

In communicator I can see that the register is just bound to one input channel but I want to give it to 16 input registers. How this is possible?

One input channel is bound to only 1 tag in Communicator. For further calculations, you need to use one input channel (real type) as a source and other input channels of calculated type. If you post a link to a screenshot of your input channels, it would be easier to find a mistake.

[Mikhail]

Hi,

Try switch to OPC DA 2 in Communicator and check what write command is used.

I can set Quality in the driver, but before I do it, it’s better to hear an answer from the OPC server developer.

[Mikhail]

Could you provide an example?
Note: formulas are calculated in order of input channel numbers.

[Author]

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