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ePAQ-9150
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SCADA
Scaling
Scaling Resistor
Scratch-Pad Memory
Set Point
Software
Span
Stack
State Alarm
Station Address
Status Block
Status Point
Subroutine
Subsystem
Supervisory Point
Table
Telemetry
Copyright © 2016 QEI
data exchange.
Supervisory Control and Data Acquisition. The TDMS-Plus Master Station
and Remote Stations comprise such a SCADA system.
The alteration of measurement data, either by hardware or by computer
program, to convert the raw value into a corresponding engineering value.
A component wired into the system to interface a current transducer to its
corresponding analog-to-digital converter.
An area in RAM reserved for use by the CPU to avoid delays that would
be encountered by inter-action with the main memory.
A remote supervisory measurement point that can be preset to some
digital or analog value by an operator command. The system may then
establish an automatic operating level within a specified tolerance of the
set point value.
All the codes, listings, flow charts and other written information that define
the computer program, as distinguished from the computer itself (i.e.
hardware), and from the program instructions that are contained in the
solid-state EEPROMs (firmware).
The range between the maximum and minimum engineering values of a
measurement.
An area of RAM reserved for the temporary storage of information during
interrupts.
An alarm condition created by an unauthorized state. The alarm condition
remains until the device returns to the authorized state (also called a
status alarm).
A number assigned to a remote station. No two stations on a common link
(comm. line) may have the same address.
A group of 16 consecutive status points.
A supervisory point that provides two-state (binary) data.
A part of a program designed to perform a specific function and which
may be utilized by the computer whenever that function is encountered in
the program.
A complete station, such as master or remote, within a SCADA system.
Any unique, physical location that provides information to the system (i.e.
a status or measurement point), or that responds to action by the system
(i.e. a control or set point).
An organized list of related items, each of which is identified either by its
position on the list or by some pointer. Tables that provide program
definitions are stored in EEPROM; data tables are stored in RAM.
The method of sensing and transmitting supervisory information from a
remote station to the master station, or transmitting commands and set
point information from the master to the remote. Generally analog or
Remote Terminal Unit
Section 3 – Glossary
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