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GE Intelligent Platforms Unveils Controller Solution

2010-05-31 22:13:11views: 836GE-IP

GE Intelligent Platforms Unveils Controller Solution

Using GE Intelligent Platforms' PACSystems RX3i controllers and Series 90 PLCs and coupled with Proficy CIMPLICITY HMI/SCADA software, Bay designs systems that instantaneously respond to the infinitely variable demands and pressure conditions associated with aircraft fueling.

Hydrant fueling systems typically feature a minimum of two tanks, one dedicated to receiving fuel and the other dedicated to dispensing fuel. Both tanks incorporate pump houses with two to 10 identical fueling pumps handling individual capacities from 600 to 1,200 gallons per minute. Corresponding capacity filter separators, control valves, and instrumentation for starting and stopping the pumps are incorporated as determined by flow rate demands. Bay uses contactors and electrical components from GE Industrial and GE flow meters from GE Sensing for these tasks.

"Each PLC is programmed to react to pressure conditions within a loop system by communicating to the lead pump," said Robert Boseman, president of Bay Associates. "When the pressure drops, the PLC brings on the lead pump to adjust the pressure according to demand." The PLC follows a sequence to bring on additional pumps. If the system is issuing 600 gallons of fuel and only getting 50 gallons on return, additional pumps come online to satisfy the demand, or go offline in the case of over supply.

Depending on I/O specifications, a GE Intelligent Platforms PACSystems RX3i, Series 90-30 or Series 90-70 PLC hardwired to field devices, I/O modules, and, for "hot standby" applications, a Genius bus, provides communication from the I/O racks to the CPU. Every system incorporates a redundancy system for downtime production. Bay's latest hydrant control systems uses the PACSystems RX3i to monitor and control 500 I/O points -- 90 percent digital I/O and 10 percent analog I/O.

"Downtime at any airport is extremely costly in lost production, flight scheduling delays, and mission critical operations," said Joben Kronebusch, Global Product General Manager for GE Intelligent Platforms. "Infrastructure delays can cost well over $1,000 per minute. And, if the fuel system goes down management needs to allocate more manpower to manually operate the delivery system."


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