Beckhoff TF6340 Serial Communication 1.1

Beckhoff TF6340 Serial Communication is a TwinCAT 3 function from Beckhoff Automation that enables straightforward implementation of serial data exchange within PLC applications. It provides the building blocks needed to connect TwinCAT-based control systems to serial devices—such as barcode scanners, printers, scales, sensors, and drives—using common interfaces like RS‑232, RS‑422, and RS‑485.

Key capabilities:

• Configure and access serial interfaces directly from the PLC, including baud rate, parity, data bits, stop bits, and flow control.
• Transmit and receive ASCII or binary data streams with buffering and timeout handling.
• Work with standard PC COM ports and Beckhoff serial interfaces via EtherCAT.
• Build custom serial protocols entirely in the PLC using ready-to-use function blocks.
• Support diagnostics to help monitor connection status and data integrity.

By integrating serial communication into the TwinCAT environment, TF6340 simplifies the connection of legacy or specialized equipment to modern control systems, reducing engineering effort and improving maintainability. A TwinCAT 3 runtime license for TF6340 is required on the target system.

Beckhoff TF6340 Serial Communication is developed by Beckhoff Automation. The most popular versions of this product among our users are: 1.0 and 1.1.