BECKHOFF BK3000 - Manual (Page 37)

PROFIBUS coupler BK3xx0 in the PROFIBUS DP
BK3xxx/LC3100 37
TwinCAT Example
In TwinCAT the terminals are entered in precisely the same sequence in
which the terminals are physically plugged together. For analogue terminals
there is a difference between “Complex” and “Compact”. “Complex” refers
to complete mapping of the terminal, while “Compact” refers only to user
data.