Active Topics/Items

To access the DDE Communications Event Log, select
DDE/OPC > Communication Events
from the RSLinx Classic main menu.

Select DDE/OPC > Active Topics/Items
to display a window with the topic name and item description for each active topic. A topic is considered active if an OPC or DDE client is communicating with the topic. If you see an error in the Active Topic/Item List
window, check DDE/OPC >Communication Event Log to determine what the topic or item error is.

Diagnostics

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