초록 ▼

Data samples are obtained from a control device while in use to control a material process. Selected ones of these samples are stored which represent results of operating the device over portions of its characteristics, and they are selectively combined to provide an indication of the complete devic

Data samples are obtained from a control device while in use to control a material process. Selected ones of these samples are stored which represent results of operating the device over portions of its characteristics, and they are selectively combined to provide an indication of the complete device characteristics. Selected such data samples are used provide information concerning selected control device parameters based on the device characteristics.

대표청구항 ▼

A method of acquiring data to represent relationships over corresponding relationship magnitude ranges between selected signals obtained from a process control device controlling at least a part of a process with that data being acquired during such controlling, said method comprising: obtaining a s

A method of acquiring data to represent relationships over corresponding relationship magnitude ranges between selected signals obtained from a process control device controlling at least a part of a process with that data being acquired during such controlling, said method comprising: obtaining a succession of sets of substantially contemporaneously collected magnitude values of said selected signals during said controlling with a value of each of said selected signals forming a member of each of said sets so that corresponding members of said succession of sets form a sequence of magnitude values for a corresponding one of said selected signals; storing selected ones of said succession of sets; and providing an indicator of a relationship between at least a pair of said selected signals over at least portions of said relationship magnitude ranges corresponding thereto by selecting a group of said stored sets with those members thereof corresponding to one of said pair of selected signals forming corresponding stored set sequences of magnitude values, said stored set sequences having therein substantially monotonic subsequences of magnitude values extending over corresponding subsequence magnitude ranges that are less in extent than those said portions of said corresponding relationship magnitude ranges over which said indicator is provided.