[ISS Support Case] Failure to Write to Tag Topserver
Last updated: March 6th, 2025Description
This is a brand-new tag/attribute. It represents a command to tell a GE 800 (Commend Intercom System) to dial and connect a remote intercom station to a master station. The GE 800 takes care of the leg work of the connection but listens for the commands. The GE 800 has a proprietary protocol call ComADAPT which requires the user to purchase a separate software server (i.e. middleman software) called ComOPC which allows us to interface indirectly with the GE 800 with OPC UA. For us to communicate with the middleman software via OPC UA, we must use TOP Server since the built-in Application Server OPC DI object only supports OPC DA. Thus, we must use the suitelink object to communicate with TOP Server which communicates with ComOPC with OPC UA. I was able to send the command perfectly (the same item name) using a standalone OPC UA client like dOPC Explorer (OPC Free and Freeware Downloads from Kassl) and the TOP Server quick client too. That narrows down where the issue might be.
- Author: Kevin Modlin
- Published: March 6th, 2025
Details:
| Product: Application Server |
| Version: 2023 |
| Solution: [Solution is visible below when you're logged in and have a current subscription] |
| Date Created: | 05/14/2024 |
| Case: | 87043 |
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