Method for determining a measuring point in time for a field device and corresponding field device in which a measuring point in time has been determined

摘要

A method and apparatus for determining a measuring point in time (t_M), at which a measured value is to be produced by a field device of process automation technology, wherein the field device communicates its measured values at certain communication points in time (t_K) over a field bus following a query from a central control unit with regard to the measured values of the field device. The communication point in time (t_f) is approximated from at least two communication points in time (t_K, t′_K) and the measuring point in time (t_M) is determined on the basis of the approximated communication point in time (t_f).