Uncategorized

In the aftermath of the Heathrow Airport closure following a transformer failure at a power distribution site it seems to me that predicting a transformer failure sufficiently far ahead in time, thus giving time for it to be safely shut down before catastrophic failure, would be much better than trying to minimise the effects of a […]

In a good, consistent alarm system, annunciations will be few and alarm limits will outline a Window of Best Operation, acting as a guide to the operator for achieving process objectives. The operator takes action to achieve business objectives and in response to changes in process capability due to abnormal equipment events resulting in regulatory

Text Substitution on File Read Some process historians very usefully record data for some status variables as text such as ON or OFF, OPEN or CLOSED instead of as integers. Laboratory data similarly can contain text such as PASS, FAIL.  CVE 2.8.0 and earlier treat text fields as invalid data. Beginning with CVE 2.8.2, CVE