Emerson FloBoss S600 Instruction Manual page 97

M
Mantissa
Modbus
Modem
Modulate
Multiplexor
N
Noise
Non-volatile
Memory
O
Object
Octal
Open Collector
Opto-Isolator
Overrange
P, Q
PCB
PID
Port
Program
Protocol
PRT
PSU
R
ROM
RS-232
RTD
RTU
RTV
RX or RXD
S
Security Code
SRAM
S600
Revised Aug-06
Numerically significant part of a floating point number.
A device communications protocol developed by Gould-Modicon and used on the
station supervisory computer data link.
Modulator Demodulator.
Superimposing one signal upon another.
Multiple Input Selector.
Random electrical interference.
Memory type that retains data when the power supply is disconnected.
Generally, any item that can be individually selected and manipulated. This can
include shapes and pictures that appear on a display screen as well as less-tangible
software entities. In object-oriented programming, for example, an object is a self-
contained entity that consists of both data and procedures to manipulate the data.
Numbers in base 8 (that is, numbers 0 through 8).
Digital output that is driven by a transistor and requires external power.
Optical device for connecting signals while maintaining electrical isolation.
Over the preset current limit for the A/D Converter.
Printed Circuit Board.
Three-term control action that uses Proportional, Integral, and Derivative components
to modify a control output, with the goal of achieving a measured process variable at a
set point.
Group of inputs or outputs to the computer.
Series of instructions.
Precise description of data interchange over a telemetry link.
Platinum Resistance Thermometer.
Power Supply Unit.
Read-only memory (fixed storage). Typically used to store firmware. Flash memory.
Voltage standard for serial data transmission.
Resistance Thermometer Device.
Remote Terminal Unit.
Room Temperature Vulcanizing, typically a sealant or caulk such as silicon rubber.
Received information.
Codes that limit operator access to software parameters; typically stored in micro
memory.
Static Random Access Memory. Stores data as long as power is applied; typically
backed up by a lithium battery or supercapacitor.
™
FloBoss S600 Flow Computer.
Glossary
S600 Instruction Manual
A-3