Networking
5-21
S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04
5. Insert the green and red cores in the screw terminal block as shown in the
following figure.
Ensure that the same cores are always connected to the same terminals A or B
(for example, green conductor always wired to terminal A, and red conductor to
terminal B).
Bus cable connection for first
and last station on the bus
Bus cable connection for all
other stations on the bus
A B A B
ÇÇ
A B A B
The bus cable can be
connected either right or left.
Figure 5-13 Inserting cores into the screw termninal blocks
6. Retighten the clamp hinge cover.
Ensure that the bare cable shield is under the shield clamp.
7. Tighten the screw terminals for the green and red cores.
8. Close the cover of the bus connector.
9. Screw the housing on.
