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Item Description
downlink network for ControlEdge 900 Expansion I/O racks or third party I/O.
Only ring network topologies are supported.
7 Ethernet LED status indicators for communications functions. Refer to UOC
User’s guide for detailed information.
CAUTION: Do not remove or insert the Ethernet connection when
the CPM is powered unless the installation is in a hazardous area.
UOC-CPM mode switch
Although the Mode switch is used when the CPM is programmed as
PLC, it is not used when programmed as UOC.
Figure 4-2: UOC-CPM Rotary Switch
The FTE Device Index uniquely identifies the controller on the FTE
Network. The FTE Device Index is configured in two places. First, the
CPM rotary switches are used to set the FTE device index of the UOC.
Second, Experion PKS Control Builder is used to configure the FTE
Device Index in the UOC Platform Function Block.
Control Builder enforces the following:
n The primary controller (of a redundant controller pair) always
configured with an odd numbered Device Index.
n A non-redundant controller is only configured with an odd
numbered Device Index.
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