RS232/485

To access the serial interface of the CX8080, you have to configure it in the TwinCAT System Manager. In the simplest case, the CX8080 is scanned, and it then adds the two serial interfaces automatically in your system.

Start your CX8080 in Config mode. The TC LED of the CX8080 must then turn blue. Now you can scan for new devices.

Scanning the CX8080

RS485 interface, here device 2.

RS485

RS232 interface, here device 3.

RS232

Please use these files for offline configuration. The offline file contains two tsm files, one for the K-bus interface, and one for E-bus interface:
cx8080offlineconfig.zip

Protocols

KS8000 protocol for operation of the Bus Coupler BK8100 or BK8000

Both interfaces can be used as BK8xx0 master. It is an open Beckhoff protocol, which should be used for the products BK8100 RS232 or BK8000 RS485. The protocol is already implemented, and you can address the couplers directly.

Additional protocols

A further setting is the KL6xx1 mode. It should be used for all other protocols. In conjunction with the supplements ModbusRTU, IEC 60870 or other serial protocols, the interface can then support different serial protocols. Proprietary protocols or other open protocols can also be used (see Programming).