OPC - OLE (Object Linking and Embedding) for Process Control :: The Industrial Interoperability Standard
Polling Knowledge Base
most important key terminologies you need to know if you work in Automation, Controls, Brilliant Manufacturing, Operational & Industrial Intelligence or IoT etc.
; regardless of any vendor(s) you are dealing (Allen Bradley, GE Fanuc, Siemens, Modicon, Mitsubishi, Omron, Automation Direct etc).
A term for the specific data you want to access in a device
A protocol in which a host or master station 'polls' each remote station in turn for incoming data. The remotes may only respond when polled.
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