Historical OPC A&E: Instrumental in Optimizing Plant PerformanceNumerous companies are realizing the value of collecting and storing OPC A&E data. Most likely every plant, at one point or another, has reviewed operations to understand what happened in a given situation. There are numerous reasons for seeking a thorough understanding of an event that already occurred – safety, environmental upsets, regulatory compliance, lost production, quality deviation or equipment damage, to name a few. The economic loss and the safety implications are enough justification to be proactive in preventing these issues from occurring again in the future. Many facilities rely on alarm printers, event logs or other forms of data recorders for information to do these reviews. The problem is that understanding and searching these logs is difficult, if they are even available when they are needed.
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