PROFIBUS USER MANUAL Leine & Linde AB
Part Id: 740590-01
10
Document Id: 740590 Ver. 01
Publication date: 2010-06-01
2.2.1 BUS lines
The PROFIBUS bus line connections of the M12 equipped devices are constituted by a
male B-coded 5 pin M12 connector (bus in), and a female B-coded 5 pin M12 connector
(bus out).
Picture 5 Orientation of M12 bus connectors
The cable gland gateways shall be equipped with twisted pair shielded cable in
accordance with EN 50170 and PROFIBUS guidelines. The guidelines recommend a
conductor area higher than 0,34 mm
2
. Permissible outer cable diameter is ø 8 mm to ø
10 mm for the bus lines cables. Located inside the back cover are four screw terminals
containing the required bus line terminals marked A and B. Cable glands not used,
should be replaced with a filler plug to ensure proper sealing. The filler plug is
available as an accessory from Leine & Linde.
The A terminal shall be used to connect the A-line.
The B terminal shall be used to connect the B-line.
Picture 6 Terminal connection of bus line cables
Note:
Tighten all screws in the terminal, even if no cable has been attached.
Note:
The two A -terminals are internally connected to each other and the two B-
terminals are also internally connected to each other so it does not matter to
which the bus lines are connected to.
Bus in- lines
Bus out- lines
Function Pin Function Pin
Not connected
1 VP 1
A 2 A 2
Not connected
3 DGND 3
B 4 B 4
Chassi 5 Chassi 5
Table 3 Pinning M12 bus in/out – lines
Bus in
Bus out