Emerson IEC 62591 Instruction Manual page 54

IEC 62591 Wireless Interface Instruction Manual (for ControlWave Micro)
C
(continued)
ControlWave A brand name for a family of controllers (RTUs) and flow computers available from
Emerson.
ControlWave A software configuration tool that lets you create programming logic for the
Designer ControlWave controller or flow computer.
CPU Central Processing Unit.
CRC Cyclical Redundancy Check error checking.
CSA Canadian Standards Association. See http://www.csa.ca.
CTS Clear to Send modem communications signal.
D
DCE Data Communication Equipment.
Deadband A value that is an inactive zone above the low limits and below the high limits. The
purpose of the deadband is to prevent a value (such as an alarm) from being set and
cleared continuously when the input value is oscillating around the specified limit.
DI Discrete Input.
Discrete Input or output that is non-continuous, typically representing two levels (such as on/off).
DO Discrete Output.
Download The process of sending data, a file, or a program from a PC to an RTU.
DP Differential Pressure.
DSR Data Set Ready modem communications signal.
DTE Data Terminal Equipment.
DTR Data Terminal Ready modem communications signal.
Duty Cycle Proportion of time during a cycle that a device is activated. A short duty cycle
conserves power for I/O channels, radios, and so on.
E
EEPROM Electrically Erasable Programmable Read-Only Memory, a form of permanent memory.
EFM Electronic Flow Metering or Measurement.
EMI Electro-Magnetic Interference.
ESD Electro-Static Discharge.
F
FCC Federal Communications Commission. See http://www.fcc.gov.
Field A portable configurator which lets you set certain parameters in a wired or wireless
Communicator device such as a transmitter.
Firmware Internal software that is factory-loaded into the ControlWave RTU.
Flash A type of memory that can be electrically re-programmed. It is a form of permanent
memory (requires no backup power). Also called Flash memory.
FM Factory Mutual.
™
F An open architecture for information integration, managed by the Fieldbus Foundation
OUNDATION
Fieldbus (www.fieldbus.org).
FPV Compressibility Factor.
Function Block A software structure in ControlWave Designer that performs some calculation or other
function. Function blocks can include multiple inputs and multiple outputs. Sometimes
abbreviated as FB.
A-2 Glossary Revised October-2019