OPC - OLE (Object Linking and Embedding) for Process Control :: The Industrial Interoperability Standard
Half Duplex 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).
In data terms, a system in which the two stations take turns sending and receiving.
In radio terms, a system using two frequencies in which stations must alternate between transmitting and receiving.
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