System manual CECX / PROFIBUS Slave interface module CECX-F-PB-S-V1
CECX-II 26-6
26.5.1.4 Cable length
The specified line parameters result in the following lengths for the bus
segment (max. 32 participants per segment):
Baud rate
(kBit/s)
Max. length (m)
9.6 1200
19.2 1200
45.45 1200
93.75 1200
187.5 1000
500 400
1500 200
3000 100
6000 100
12000 100
26.5.1.5 Plug specification
To establish connection with the plug, the following shielded plug is rec-
ommended:
Phönix plug SUBCON-PLUS-PROFIB/AX/SC
Material number: 2744380
26.5.1.6 Bus termination
To ensure smooth operations, the PROFIBUS line must be terminated on
either end. When using a plug designed for PROFIBUS the termination can
be switched on/off via a switch at the connector shell.
PROFIBUS - pariticipant
Bus termination active
( switch ON )
Bus termination inactive
( switch OFF )
PROFIBUS - pariticipant
PROFIBUS - pariticipant
Bus termination active
( switch ON )
Connection example of profibus cabling with 3 participants