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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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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