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All SCADA systems work on
one principle. Remote sensors collect data and central system processes
them. The central system stores data which can be analysed at a later
stage and is known as SCADA Historian data analysis.
The analysed data is presented in human readable format at Man Machine
Interface, often abbreviated as MMI. These tasks are performed with
special software. The record which gets collected on hourly basis (or
any predefined period) is scrutinized as well as SCADA Historian data
analysis is undertaken with the purpose of process optimization. For
SCADA Historian data analysis to be carried out the main requisite is
existence of database as it is acts as repository for processing of
data.
The applications for SCADA Historian data analysis are generally
written in either VB or Microsoft C and the data is entered into
database either manually or through the remote sensors. Generally, the
software creates time sampled records which can be easily scrutinized
with the purpose of process optimization. The reports generated are
either event based (report is generated on occurrences of particular
event) or time based (report is generated every hour).
See Also:
Pumping Up Data Historians on Managing Automation
Thus to overcome these problems,
repeater units are used. Repeaters are those radio frequency
transmitters which first collect the attenuated/ weak signals, boost
them and again transmit them to central system/ to next repeater. By
this way, the transmission can be increased to cover more than line of
sight/ 5 miles (whichever is less).
Benefits of employing SCADA VHF Industrial are many, few are:
* Real time monitoring
* Direct information about system performance
* Less operational costs
* More equipment life
* Improved system performance and efficiency
* Report generation gets automated which in return is less error prone
* Less labour costs for troubleshooting or for service
Thus with the employment of SCADA systems in wireless industry, the
transmission of data has become more secured, efficient and
reliable. |
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More articles:
SCADA Automation - Home
Abbot Laboratories
Scada automation
Scada automation
Antennas by Antenex®, Inc. - Signal Propagation Systems
There
can be SCADA Programmer which is able to carry programming of logic
converters of SCADA systems. The job profile will include configuration
and programming of automation and various control systems including
Human Machine Interface (abbreviated as HMI), or Man machine interface
(abbreviated as MMI) or even SCADA systems.
To see yourself in profile of SCADA engineer job profile, you need to
be well versed in certain type of software packages which are of great
importance in this field as they are used for doing programming. Common
software employed are Wonderware, Intellution, Rockewell, Iconics.
Ci-tech etc.
Also you need to be sound in Boolean logic, data logging, symbol
conventions along with tagging convention. Generally the positions for
SCADA engineers seek people having nice hand at Visual Basic
Programming, reporting packages, alarming with external paging.
Related Topics: Narrowband scada projects,
Scada engineer job, Scada in the electricity industry
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