RACOM M!DGE3, Руководство пользователя

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The physical layer of the S-Bus protocol uses the RS232 or RS485 interface. The data addressed to
255 is processed as broadcast.
Protocol frame has to be as whole received in the one buffer, so the IDDLE parameter should be set
properly. The S-bus protocol header does not always contain the length of the data, so it is not possible
to work with fragmented and defragmented frames.
Mode of connected device
List box {Master; Slave; Slave Plus}, default= “Master”
Master and Slave behaves connects standard Master or Slave PCD’s. The Slave Plus mode allows
to behave in limited way as a Master and send to other Slave/Slave Plus write command (read
command is not allowed).
Broadcast
List box {On; Off}, default =”On”
When
On , the 255 address is treated as a broadcast, When Off , the 255 address is ignored.
Protocol mode
List box {Break; Data}, default =”Break”
Break or Data protocol modes can be used.
Break mode (SM0)
The frames are synchronised by the break characters of a configured length which are sent
before the addressed command.
Break mode is available only with COM port, it is not implemented on TS (the break signal is
not available there). The Break signal is controlled is very rough (with step of 100 ms) due to
Linux kernel limitations.
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