BECKHOFF BK3xx0 - Manual (Page 23)

Notes on the Documentation
Fieldbus Components 21
Configuration and Programming Interface
The Bus Coupler / Bus Terminal Controller have an RS232 interface at the bottom of the front face. The miniature
connector can be joined to a PC and the KS2000 configuration software with the aid of a connecting cable. The
interface permits the Bus Terminals to be configured, for example adjusting the amplification factors of the analog
channels. The interface can also be used to change the assignments of the bus terminal data to the process image in
the Bus Coupler. The functionality of the configuration interface can also be reached via the fieldbus using string
communication facility.
Electrical isolation
The Bus Coupler / Bus Terminal Controller operate by means of three independent potential groups. The supply
voltage feeds the K-Bus electronics and the K-Bus itself. The supply voltage is also used to generate the operating
voltage for the fieldbus interface.
Remark: All the Bus Terminals are electrically isolated from the K-Bus. The K-Bus is thus electrically isolated from
everything else.