Lo George,Lamparter Steffen,Wang Lingyun,Ludwig Hartmut
申请号：
US201414467125
公开号：
US9946244(B2)
申请日:
2014.08.25
申请国别(地区):
美国
年份:
2018
代理人:
摘要：
A method of operating an intelligent programmable logic controller over a plurality of scan cycles includes creating, by the intelligent programmable logic controller, a process image area in a volatile computer-readable storage medium operably coupled to the intelligent programmable logic controller. The intelligent programmable logic controller then updates the process image area during each scan cycle with contents comprising data associated with a production unit. The contents of the process image area are stored by the intelligent programmable logic controller during each scan cycle on a non-volatile computer-readable storage medium operably coupled to the intelligent programmable logic controller. The intelligent programmable logic controller annotates the contents of the process image area with automation system context information to generate contextualized data.
