BECKHOFF BK3xx0 - Manual (Page 56)

Notes on the Documentation
54 Fieldbus Components
Assignment of the DPV1 Slot Number
The Slot_Number = 0 addresses the data of the Bus Coupler, while Slot_Number > 0 addresses the data (registers or
parameters (KL6201)) of the complex terminals:
Device
Slot number =
0
Slot number > 0
BK3x20,
BK3500 Data in Bus
Coupler Slot_Number = 1:
first complex terminal plugged into the Bus Coupler (KL15xx, KL25xx,
KL3xxx, KL4xxx, KL5xxx, KL6xxx, KL8xxx)
Slot_Number = 2:
second complex terminal plugged into the Bus Coupler (KL15xx, KL25xx,
KL3xxx, KL4xxx, KL5xxx, KL6xxx, KL8xxx)
etc.
BK3x10/LC3100 Data in Bus
Coupler
Not present, because neither the BK3x10 nor the LC3100 support
complex terminals.