19
Table 3-2: System component list for ControlEdge 900 PLC Hardware
Item
Component
Name
Description Source
1 I/O Rack System may consist of 5 different types of
I/O racks:
l 4-slot w/1 power supply
l 8-slot w/1 power supply
l 12-slot w/1 power supply
l 8-slot w/redundant power supplies
l 12-slot w/ redundant power upplies
Local I/O Rack
l 1 I/O Rack
l 1 CPM (for controller racks) or 1 EPM
(for I/O racks)
l Up to 4, 8 or 12 I/O modules
l 1 or 2 Power Supplies
Optional second Power Supply and
Power Status Module (PSM) on 8-
and 12-slot I/O rack.
A Power Status Module (PSM) is
required with redundant power
supplies.
2 Redundant CPM
Rack
l 1 Redundant Controller Rack
l 2 Power Supplies
l 2 CPMs: Redundancy is provided by
two CPMs operating in a Redundant
Controller Rack; this rack has no I/O
modules.
l 1 Filler block cover
Honeywell
3 Expansion I/O
Rack (Optional)
Includes:
l 1 rack
l 1 Power Supply
l Optional second Power Supply and
Honeywell