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Wireless SCADA

Wireless media can also be a communication medium for the master unit and the remote unit. System using this type of media are termed “wireless SCADA System ” A few example of wireless media are explained below.

MicroWave Radio – In this case signals are transmitted at high frequencies using parabolic dishes installed on towers or on the tops of buildings. However, one disadvantage of this communication is that transmission may get interputed due to misalignment and/or atmospheric conditions.

Spread Spectrum Radio – The frequency band for this is 900MH to 5.8GHz and is free for general public use. Spread spectrum radio modems are used to ensure efficient network communication.

VHF/UHF Radio – This is an electromagnetic transmission with frequencies of 175MHz-450MGz-900MHz. Special antennas are required to receive these signals.

Benefits of wireless SCADA system

A perfectly designed wireless SCADA system offers the following benefits:

1. Monitors in real time.

2. Minimizes the operational costs.

3. Provide direct information of system performance.

4. Improves system efficiency and performance.

5. Increases equipment life.

6. Reduces labor costs required for troubleshooting or servicing the equipment.

7. Automated report generation reduces errors in calculations and interpretations.

8. Uses advanced technologies.