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Ask The Experts"Ask The Experts" is moderated on ControlGlobal.com by noted process control authority and CONTROL Columnist Bela Liptak. Liptak either answers the questions himself, or brings in one or more experts from his cadre of co-authors that worked with him on the Instrument Engineers' Handbook, Fourth Edition. Save yourself the hefty consulting fees by getting the answers to your questions here.

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How can we connect a F&G system?

We're seeking a suitable way to monitor a fire and gas system without running cables.

May 9, 2017

*Q*: A petrochemical plant has a PLC-based fire and gas (F&G) system with monitoring in the control room. We need to add monitoring at the fire station. Cabling between three stations (two control rooms and one fire station) and using mimic panels is not possible because of many barriers. I’m thinking about sending signals from the PLCs to the computer through network cards and antennas. Distances are about 400 meters and 1 kilometer. The amount of data transmitted ranges from 1 to 30 MB.

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