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Terminology Description
HMI Human Machine Interface
HSR High Availability Seamless Redundancy
I/O Rack ControlEdge 900 form factor rack with 4, 8, or, 12 I/O slots and one
slot for non-redundant CPM or EPM.
PLC Programmable Logic Controller
PSM Power Status Module
PSU Power Supply Unit
PWA Printed Wiring Assembly
Redundant
Controller
Rack
ControlEdge 900 rack capable of hosting a redundant pair of CPMs.
RM Redundancy Module
RTP Remote Termination Panel
RIUP Removal and Insertion Under Power
SCADA Supervisory Control and Data Acquisition
UIO/UIOM Universal Input/ Output (Module)
UOC Unit Operations Controller (Experion). This is a term used to refer to
the CPM when used as a controller in the Experion PKS Distributed
Control System.
Chapter 1 - About this guide
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