Kepware tag values read via Configuration API Kepware EX6.4

[prathinam79]

Dear Team,

I am currently conducting research on the Kepware Configuration API and have observed that the API exposes various endpoints for accessing configuration data and properties.

In our setup, we have the following structure configured within Kepware:

• Project
  • Channel1
    • Device1
      • Tag1

The values for Tag1 are actively updating, sourced from an OPC simulator. We are able to confirm that the tag is receiving live data updates within the Kepware environment.

We would like to understand whether it is possible to retrieve the live value of Tag1 using the following Configuration API endpoint:

http://localhost:57412/config/v1/project/channels/Channel1/devices/Device1/tags/Tag1

Please note that we are specifically looking to access this data without utilizing the IoT Gateway REST interface.

Could you kindly confirm whether the Configuration API supports reading live tag values, or if an alternative method (e.g., OPC UA or another API) is required for this purpose?

Thank you for your guidance.

Best regards,
Ponram Rathinam

[rajskumar · Accepted solution]

Hello,

As mentioned earlier, the Config API is designed for remote configuration of Kepserver and does not support reading tag values. To read tag values, the REST server of the IoT Gateway is typically used via any REST client.

Since you've indicated a preference to avoid using the IoT Gateway, an alternative would be to use a UA Client that connects directly to Kepserver's UA interface and read the tag value.

Let me know if you have any other questions or concerns. Thanks