BECKHOFF AX2500 - Manual (Page 69)

8.18.2 PROFIBUS interface (X7), option
This section describes the PROFIBUS interface for AX2500.
Information on the range of functions and the software protocol can be found in the man-
ual “Communication profile PROFIBUS-DP”.
The selection of cables, cable routing, shielding, bus connectors, bus termination and
propagation times are described in the “Setup guidelines for PROFIBUS-DP/FMS” from
PNO, the PROFIBUS User Organization.
Use only identical cable types of one manufacturer.
Recommendations for 1.5 MBit/s and 3 MBit/s
1.5 MBit/s max 32 axes per segment
3 MBit/s
max 32 axes per segment
Recommendations for 6 MBit/s and 12 MBit/s
For long-term reliability of the system
with 6 MBit/s and 12 MBit/s we
recommend to connect the segments
with repeaters and to use one
AX2500-Master per segment only
(see example).
6 MBit/s
max 8 axes(1 master) per
segment
12 MBit/s
max 8 axes(1 master) per
segment
AX2500 Product Manual 69
BECKHOFF
06/2007
Electrical Installation
AX2500
Master
8 x AX2500
6 x AX2500
4 x AX2500