Highway Addressable Remote Transducer Protocol: Difference between revisions

Revision as of 06:40, 30 May 2023

Revision as of 06:43, 30 May 2023

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! [[Bit]]

! style="text-align:center;" | 07 !! 16 !! 25 !! 34 !!43 !! 52 !! 61 !! 70

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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, Physial 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.

===Address===