13
2-1-2 Expansion I/O Racks
An example of an Expansion I/O Rack is shown in the following diagram. Expan-
sion I/O Racks consist of and I/O Backplane, Power Supply Unit, I/O Units, and
other Units. Expansion I/O Racks are connected to the CPU Rack to increase
the number of I/O Units and other Units that can be used by the PC. You can
connect up to 2 or up to 3 Expansion I/O Racks to a CPU Rack, the number
depending on the CPU Unit that is used.
Power Supply Unit
I/O Backplane
Other Units
Power Supply Unit The Power Supply Unit supplies power to the Expansion I/O Rack. The Power
Supply Units listed in the following table are available. Refer to 2-2-4 Power Sup-
ply Units for further details.
Model Supply voltage Remarks
C200HW-PA204
100 to 120 VAC,
---
C200HW-PA204S
200 to 240 VAC
Provides 24-VDC output
terminals.
C200HW-PD204R
Equipped with RUN
C200HW-PD209R
output contacts.
C200HW-PD024 24 VDC
Note RUN output contacts cannot be used with Expansion I/O Racks.
I/O Backplane The I/O Backplane is required to mount the Power Supply Unit and other Units
composing the Expansion I/O Rack. The following I/O Backplanes are available
depending on the number of slot required for Units. Refer to 2-2-5 Backplanes
for further details.
Model Number of slots
C200HW-BI031 3
C200HW-BI051 5
C200HW-BI081-V1 8
C200HW-BI101-V1 10
Note When using the C200HW-PA209R Power Supply Unit with an 8 or 10-slot Back-
plane, be sure to use the C200HW-BC081-V1 or C200HW-BC101-V1.
Other Units The other Units that can be mounted to an Expansion I/O Rack include the Stan-
dard I/O Units, High-density I/O Units, and Special I/O Units.
Basic Configuration Section 2-1
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