twincattwincat-adstwincat-hmi

PLC Variables Not Visible in "All Symbols" When Target is Remote in TwinCAT


I am working on a project in TwinCAT 3 and encountering an issue where I can't see my PLC variables in the "All Symbols" view when the target is set to a remote device (not local). Everything works fine when the target is local, but once I switch to a remote target, the variables seem to disappear from the list.

Here's the setup:

What I've Tried:

Additional Info:

Is there something I'm missing in the configuration when switching to a remote target?

How can I make the PLC variables visible in the "All Symbols" view when working with a remote target? enter image description here enter image description here


Solution

  • The issue likely arises from misconfigured symbol settings when targeting a remote PLC. Here’s the solution:

    1. Open TwinCAT HMI Server Configuration.
    2. In the ADS tab, ensure the remote PLC is correctly selected as the target in the AMS Net ID dropdown.
    3. Click Accept to save changes.

    This should ensure the symbols appear in "All Symbols."

    For better understanding, I’ve attached a GIF file as a step-by-step guide. enter image description here