OPC - OLE (Object Linking and Embedding) for Process Control :: The Industrial Interoperability Standard
Synchronous Knowledge Base
AutomationMedia's recommended
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).
OPC I/O Servers supports two different methods of obtaining data from an OPC server: synchronous and asynchronous I/O.
Synchronous I/O enables the OPC Client to poll the OPC server at regular intervals, according to the specified poll rate.
Synchronous I/O is a reliable means of getting data at a specified time interval.
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