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BECCO2200 DCA
Configuration Guide
A164-0CG-1.00-2 Restricted
42
Full
Data-collection
application
A software application that acquires data from and sends data to
various intelligent electronic devices. Abbreviated as DCA.
Data-translation
application
A software application that translates data from one form to
another (for example digital input to analog input). A data-
translation application usually has no direct interface to external
devices. Abbreviated as DTA.
Decimal A number system having ten symbols, and where values are
expressed in the base ten number system.
Hexadecimal A number system having 16 symbols, and where values are
expressed in the base 16 number system. Commonly used to
abbreviate binary data. Sometimes referred to as hex.
Hexadecimal numbers are often preceded by the prefix 0x.
Master The client or host station or computer, with which the RTU
equipment communicates. Also referred to as a host or host
computer.
Non-volatile
random-access
A semi-permanent type of data storage (memory)
memory that is backed up by batteries to maintain stored data even if
system power is lost. Can be both read and changed by the
system. Abbreviated as NVRAM.
Port An interface point connecting a communications channel and a
device.
Random-access
memory
A type of temporary data storage (memory) that can be read and
changed while the computer is in use. Data stored in random-
access memory is lost if the system loses power. Abbreviated as
RAM.
Read-only
memory
A type of permanent data storage (memory) that can be read but
not altered by the system. Data stored in read-only memory is not
affected by power loss to the system. Abbreviated as ROM.
Remote terminal
unit
A piece of equipment located at a distance from a master station
to monitor and control the status of outlying equipment, and to
communicate the information back to the master station or host.
Abbreviated as RTU.
Sequence of
events
A time-tagged change of state, logged as part of a chronological
record of significant changes in the condition of a particular point
or points being monitored. Abbreviated as SOE.
Slave See sub-remote unit.
Source code A piece of code that has not yet been compiled or assembled (that
is, it is still in the language it was programmed in) and so cannot
yet run on a machine.
Sub-remote unit A physical device (e.g., peripheral boards, D20 RTUs, non-D20
RTUs, meters, or other intelligent electronic device) that collects
data, processes it in some way, and communicates it to a master
remote unit (MRU). SRUs (also called slave units) are able to
respond to commands from MRUs.
WESDAC A module of software that manages the transfer, storage, and