Sort of a general question here - can anyone give me some information about what utilities are available for extracting historical data from a Honeywell PHD system?
Honeywell´s Uniformance PHD store the process data in a database. This database was created by Honeywell to this app. To get historical data you need to use some kind of comunication to this database, like PHD APIs, used in Excel to get historical data in cells. Or you can use PHD to Relational (PHD2Rel) to retreive data to Oracle, so you can use some SQL commands to extract this data to a file or Access forms.
