19.3 Calculation of times

It might also be necessary to take additional timespans into account, especially if the Higher Level System Condition State is known. For details see Annex C.2 of OPC 40001-1 (v1.03 onwards)[2].

Actual Order Execution Time (AOET)

This value can be determined from the above defined KPI’s as follows:

AOET = APT + AUST + ADET + ADOT

Here, ADOT represents the sum of ATT (actual transport time) and AQT (actual queuing time), which are not defined individually in this specification.