AI Analog Input
AO Analog Output
ACS Automation Control System
CM Control Module
CNI ControlNet Interface
CPM Control Processor Module
CR Control Room Area
DI Digital Input
DO Digital Output
ES Experion Server
ESD Emergency Shutdown System
FB Function Block
FGS-ENG Fire & Gas System Engineering Station
FTE Fault Tolerant Ethernet
HAI HART Analog Input
IO Input Output
LAN Local Area Network
MAC Media Access Control
NIC Network Interface Card
OI Override Interlock
OP Output
PCS Process Control System
P-LAN Process LAN
P-LAN-A P-LAN A
P-LAN-B P-LAN B
PRN Printer
PRSV Printer Server
RCP Redundant Chassis Pair
RM Redundancy Module
RTU Remote Terminal Unit
SCM Sequence Control Module
SDS Shutdown System
SI Safety Interlock
SP Set Point
STN Experion Station
UPS Un-interruptible Power Supply
TS Terminal Server