Configure a Channel Selector object

Configure the communication settings for a selected channel to ensure uninterrupted communication with the device network.

Time Out

The internal timeout (in milliseconds) of the TwinCAT library. This timeout is valid only when trying to find a remote TwinCAT runtime. If the TwinCAT runtime is found but the system is not running, this timeout will not apply.

Max Block Size

The maximum number of addresses that will be read in the same block. If you type 0, it will default to 512.

Import Symbol Table

This option determines when the symbols are imported from the TwinCAT PLC or runtime.

• After (re)connecting

  The symbol table is dynamically imported every time this Communication Driver communicates with the target device. This option is supported by all versions of TwinCAT.

• On startup only

  The symbol table is imported only once, when this Communication Driver communicates with the target device for the first time after startup. This option is more efficient, but it is supported only by TwinCAT 3.1 or later.

Handle Optimization

The driver creates ADS connections or handles to the PLC in runtime. The default setting for this field is 0, where default number of handles is not defined. If this field is set to 1, the driver optimizes the number of connections and sets the maximum number of connections possible is 1024.

Advanced

Click this button to open the Advanced Settings dialog box, which provides access to additional communication settings such as timeouts, retries, and buffer sizes. You might need to change these settings if the Communication Driver behaves unexpectedly during run time, but the default settings should work for most network configurations. For more information about these settings, see "Advanced Settings" in Communication Drivers Pack Help.