Highway Addressable Remote Transducer Protocol: Difference between revisions

Revision as of 23:35, 12 August 2023

Revision as of 20:22, 15 September 2023

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| Address size

|colspan="2"| Number of Expansion bytes

|colspan="2"| PhysialPhysical layer type

|colspan="3"| Frame type

|}

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;bit 7, if high use Unique (5 byte) address, else use Poling (1 Byte) addresses.

;bit 6 and 5, Number of Expansion bytes: normally it set if Expansion field is used, normally 0.

;bit 4 and 3, PhysialPhysical layer type: 0=Asynchronous, <br> 1=Synchronous

;bit 2, 1 and 0, Frame type: 1=BACK Burst Acknowledge send by Burst-mode Device<br> 2=STX Master to Field Devices.<br> 6=Slave Acknowledge to STX frame.