Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 129

Units for Duplex CPU, Dual I/O Expansion Systems
2. Do not connect separate Expansion Backplane systems with the two Con-
necting Cables. Connecting two Expansion Backplane systems will cause
improper operation.
Correct
If a CS1D I/O Interface Unit is mounted in slot 0 only, a Basic I/O Unit, Special
I/O Unit, or CPU Bus Unit can be used in slot 1.
Single Connecting Cable
connects to previous Rack.
Slot 0
Slot 1
Single Connecting Cable
connects to next Rack.
If a CS1D I/O Interface Unit is mounted in slot 1 only, a Basic I/O Unit, Special
I/O Unit, or CPU Bus Unit cannot be mounted in slot 0.
Single Connecting Cable
connects to previous Rack.
Slot 1
If mounted, a CS-series Basic
I/O Unit, Special I/O Unit, or
CPU Bus Unit will not operate.
Incorrect
Separate Expansion Backplanes
cannot be connected.
CS1D-II102D I/O Interface Unit
A CS-series Basic I/O Unit, Special I/O Unit,
or CPU Bus Unit can be mounted.
CS1D-II102D I/O Interface Unit
Slot 0
Single Connecting Cable
connects to next Rack.
Section 2-9
CS1D Expansion Rack
CS1D Expansion Rack
93