# Read PLC

The Read PLC Block is used to receive data from a PLC. On execution, the block reads the user data sent from the remote device to the vision system.

Note: For more information about the I/O Assemblies associated with Factory Floor Protocols, please see the CogNDM Class topic in the VisionPro Help file.

Properties | Description
--- | ---
Name | Specifies the name of the block.
Selected Device | Specifies the device (either a Cognex Communication Card or a Vision Controller) that will be associated with the block.