Process control - a new start
Friday, January 7, 2011 at 9:31AM
Mathew Sumpton in ENSURE COMPLIANCE WITH LEGISLATION, EXTEND THE LIFE OF EXISTING INFRASTRUCTURE, GAIN NEW INSIGHTS INTO EXISTING PROCESSES AND PLANTS, HMI, IMPROVE PRODUCTIVITY AND R.O.I., INCREASE RELIABILITY AND AVAILABILITY, PLC, REDUCE COSTS, Safety

End User: Animal Feed Producer

Location: Cambridgeshire

Having been producing animal feed pellets from straw for the last 25 years, this plant underwent a major refit in the summer of 2008. The existing control system was installed in the 1970's and was largely relay logic with a large mimic diagram of the plant.

The new control panels are now PLC controlled and the operators use touch screen HMI's to drive the plant. The extensive trending of process values has provided fresh insights into the operation of the plant. Using this new found knowledge and additional control loops has increased production and decreased energy usage with the same mechanical plant. Further energy savings have been made by automatically putting unused parts of the plant to sleep.

The safety of the plant was improved with increased guarding and programmable safety controls for the many zones in the facility. The safety system reports directly to the PLC and allows the status of the interlocks to be reported on the HMI, leading to reduced downtime.

Article originally appeared on FCS automation - PLC Control Specialists (http://www.fcsautomation.co.uk/).
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