metso automation maxPAC - Page 23

maxPAC Hardware Reference Guide
Metso Automation MAX Controls Inc. • 277596 •
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expander modules. Any DPU or redundant pair of DPUs, can communicate
with I/O that are locally and/or remotely mounted. See Figure 1-9.
Remote
location
Control
Room
D
P
U
D
P
U
B
E
M
I
O
I
O
I
O
I
O
B
E
M
I
O
I
O
I
O
I
O
B
E
M
B
E
M
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
Optical
Cable
Y
ADAPTER
backplanebackplane
redundant network
Figure 1-9. Typical Bus Expander Module Configuration