Connect to a TwinCAT I/O Task via ADS
In order to configure the TC3 IoT Data Agent to access a TwinCAT I/O Task (with process image) via ADS, the symbols can be configured manually in the TC3 IoT Data Agent configurator, if the I/O Task has not been configured to create symbol information, or via the target browser.
TwinCAT I/O Task
A TwinCAT I/O Task can be configured with a process image in order to link variables from that image directly to I/Os. The TC3 IoT Data Agent can then access the I/O task via its ADS port.


Manual symbol configuration
The process image variables can be accessed via their IndexGroup/IndexOffset combination. This information must be entered into the TC3 IoT Data Agent.

Configuration via target browser
Symbol information can be generated for a TwinCAT I/O Task by activating the corresponding option in the I/O task configuration.

After activating this configuration, the symbol information can be accessed via the Target Browser and the symbols can be added to the TC3 IoT Data Agent configuration.
