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There are currently 46 names in this directory beginning with the letter D.
Data Acquisition (DAQ) is the collection and measurement of signals from sensors, transducers, and probes for processing.
The act of collecting data from multiple sources for the purpose of reporting or analysis.
The act of reviewing and revising data to remove duplicate entries, correct misspellings, add missing data, and provide more consistency.
A set of processes or rules that ensure the integrity of the data and that data management best practices are met.
The process of combining data from different sources and presenting it in a single view.
The measure of trust an organization has in the accuracy, completeness, timeliness, and validity of the data.
The process of moving data between different storage types or formats, or between different computer systems.
the analysis of data objects using data modelling techniques to create insights from the data
The process of collecting statistics and information about data in an existing source.
The measure of data to determine its worthiness for decision making, planning, or operations.
Registers used for indirect addressing with index registers. Data registers are used to specify offsets calculated by adding the contents of the data register to an index register.
A recent term that has multiple definitions, but generally accepted as a discipline that incorporates statistics, data visualization, computer programming, data mining, machine learning, and database engineering to solve complex problems.
An attribute that specifies the data size of a symbol from the initial address in the I/O memory and the type of data stored there. It includes BOOL, INT, REAL, WORD, STRING, etc. Data types are used to monitor the values in I/O memory with CX-Programmer.
A visual abstraction of data designed for the purpose of deriving meaning or communicating information more effectively.
different types of information stored by the computer, for example floats, integers and strings.
Database management system (DBMS)
Software that collects and provides access to data in a structured format.
A Distributed Control System (DCS) is a control system method that is spread, or distributed, among several different unit processes. Controller elements are not central in location but are dispersed throughout the system with each component sub-system controlled by one or more controllers. The entire system of controllers is connected by a network for communication and monitoring. A DCS is typically a single-vendor solution that includes multiple PLCs, an HMI, a Process Historian, and configuration software. Consequently, a DCS is very tightly integrated and is theoretically easier to configure than the multi-vendor combination of the above components.
A character or characters used to separate individual values, such as the commas between columns in a CSV file.
Delta robot / Parallel Robot
Delta robots (also called parallel robots) have three robotic arms in the shape of parallelograms. Usually, the delta robot is located above the workpieces, attached to an overhead trestle. Because all the motors are on the base, the joints and arms of the robot are very light compared to other robots. The Delta robot has an upside-down dome-shaped work envelope.
OPC Client can issue a Device Read from the OPC Server. The OPC Server will understand that it should ignore the value it has in its cache (if any) and reply with a fresh value from its original data source. Consequently, a Device Read takes longer to complete than a Cache Read, but the value will be more recent.In OPC, a Device Read can either be a synchronous or asynchronous operation.
Dynamic Host Configuration Protocol: a method for automatically assigning IP addresses; addresses are
An associative array, where arbitrary keys are mapped to values. The keys can be any object with __hash__() and __eq__() methods. Called a hash in Perl.
The objects returned from dict.keys(), dict.values(), and dict.items() are called dictionary views.
Distributed Control System
A Distributed Control System (DCS) is a control system method that is spread, or distributed, among several different unit processes. Controller elements are not central in location but are dispersed throughout the system with each component sub-system controlled by one or more controllers. The entire system of controllers is connected by a network for communication and monitoring.
Human-language text written to explain what software does, how it works, or how to use it.
An open source distributed system for performing interactive analysis on large-scale datasets. It is similar to Google’s Dremel, and is managed by Apache.
Dynamic Data Exchange
(DDE) A form of inter-process communication that uses shared memory to exchange data between applications and provides a standard set of commands and message formats. Applications can use DDE for ongoing exchanges between them whereby they advise one another as data changes or events are triggered. Another facility, NetDDE, allows progams to converse across networks.
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