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What are the types of communication supports in DeviceNet protocol in VAMP relay

DeviceNet implementation in VAMP relay (Vamp 50, VAmp200, Vamp300)  supports two types of communication:
  1. - Explicit Requests and Responses – used mainly for establishing I/O connections, but can also be used for one time requests to attributes of data model objects.
  2. - I/O Messaging connections – used for very frequent exchange of process data. Polled, Change of State and Cyclic I/O Messaging types are supported.
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