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WAGO-I/O-SYSTEM 750
750-325 CC-Link Fieldbus Coupler
4.2.2
Fieldbus Connection
The socket is arranged physically lower, allowing the coupler to fit in an 80 mm
high enclosure after plug connection with the spring bar.
4.2.2.1
Connection Using Multi Connectors
The CC-Link fieldbus connection is made on the 4-pole pin strip via a 2-wire
spring bar 231 Series MCS.
The 2-wire spring bar type 231-2304 is included in the delivery.
The fieldbus cable connection is isolated.
A terminating resistor must be set at the beginning and at the end of the CC-Link
network. When the CC-Link connection line (FANC-SB) is used, a resistance
value of 110 Ohm must be selected. If a high efficency CC-Link connection line
(FANC-SBH) is used, a resistance value of 130 Ohm is to be selected.
The fieldbus system is galvanically isolated from the remaining electronics.
The shield is connected directly to the ground via a carrier rail contact. The cable
shield must be applied to the Pin 4 "Shield." In order to prevent the formation of
ground loops by the cable shield, this must only be connected to the "Shield" at
one end.
Figure 26: Fieldbus connections, Series 231 (MCS)
The assignment of the 4-pole 2-wire spring bar for the CC-Link interface is made
as follows:
Table 12: Signal assignment for the CC-Link Fieldbus Connection
Pin
1
2
3
4
Signal
Description
DG
Data Ground
DB
Data B
DA
Data A
SLD
Shield termination
Device Description
Manual
Version 2.0.1
47
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