BECKHOFF BC3150 - Manual (Page 22)

Safety Instructions
20 Fieldbus Components
Programming cable
Use the KS2000-Z2 programming cable for serial programming of the Bus Terminal Controller. This cable is included
in the scope of supply of the KS2000 software, or it can be ordered separately (order number KS2000-Z2).
KS2000-Z2
The programming cable offers the option of programming the BCxx50 via the serial interface.
Warning
When the programming cable (between BCxx50 and PC) is connected, the ground
connection of the Bus Terminal controller must not be interrupted or disconnected, since
this may destroy the programming cable.