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• Fieldbus Coupler/Controller
Fieldbus Coupler 750-306
WAGO-I/O-SYSTEM 750
DeviceNet
3.1.2.3 Fieldbus Connection
For the field bus connection, the DeviceNet interface is equipped with a 5 pole
header, its counter-piece being a plug connector (Open Style Connector).
The scope of delivery includes the plug connector 231-305/010-000/050-000
from the WAGO
MULTI CONNECTION SYSTEM
. The connector has gold
plated contacts and has the signal designations printed at its clamping units.
The table shows the connection diagram, the colours resulting in accordance
with the DeviceNet specification and are identical to the conductor colours of
the DeviceNet cables.
Pin
Signal
Code
Description
5
V+
red
11 ... 25 V
4
CAN_H
white
CAN Signal
High
3
Shield
Shield connection
2
CAN_L
blue
CAN Signal
Low
Fieldbus
connection
Series 231
(MCS)
CAN_High
drain
CAN_Low
V-
V+
1
V-
black
0 V
Fig. 3-3: Fieldbus connection, MCS
g012500e
For the connection of small conductor cross sections, we recommend to insert
an insulation stop from series 231-670 (white), 231-671 (light grey) or 231-
672 (dark grey) due to the low kink resistance. This insulation stop prevents a
conductor from kinking when it hits the conductor contact point, and as such
the conductor insulation from being also entered into and clamped in the con-
nection point. Connector marking, housing components, test connectors in-
cluding cables and header connectors for cable extensions are available.
The connection point is lowered in such a way that after a connector is in-
serted, installation in an 80 mm high switchbox is possible.
The electrical isolation between the fieldbus system and the electronics is
made via the DC/DC converter and the optoCoupler in the fieldbus.
