CEMP-E
TI 811-12
18 August 1998
CHAPTER 4
FIELD EQUIPMENT PANEL HARDWARE
1. HARDWARE CONFIGURATION. The field hardware consists of smart field panels, remote terminal
units, universal programmable controllers, and unitary controllers, referred to collectively as field
equipment panels. These panels are located in the vicinity of the utility systems monitored and controlled
by the UMCS, and communicate with the central station or island station.
Central/
Island
Station
Data
Transmission
Systems
To Other Field
Equipment Panels
Smart
Field
Panel
To Other Remote
Terminal Units
Unitary
Controller
Remote
Remote
Terminal
Terminal
Unit
Unit
Unitary
Controller
Universal
Programmable
Controller
Input/Output Interface
Typical for Other
Field Equipment Panels
To Other Controllers
Figure 4-1. Field Hardware.
2.
SMART FIELD PANEL.
a. A smart field panel contains a microprocessor, memory, real time clock, communication
interface, digital and analog I/O, controls, indicators, and power supply. The smart field panel
communicates with the central/island station, where the central/island station provides for operator
interaction, global parameter updates, and information requests and accepts information for alarm
reporting, logging of events, generation of reports, and display. The smart field panel must function in an
4-1
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