R309 AT Commands
©2015 Telegesis (UK) Ltd - 48 - AT Command Manual (Rev 3.09)
+SSINK – Search For A Sink
AT+SSINK
Search for a sink on the network by sending a
broadcast causing all sinks to reply.
By default, if a sink is already known and no
better sink is found, no prompt will be displayed.
A sink which is already known can be found at
index 05 of the address table.
Use on
All Devices
Response
OK or ERROR<errorcode>
Prompt
SINK:<EUI64>,<Network address> or
ADSK:<EUI64>,<Network address>
<errorcode> represents the error code explained
in section 3.
+MCAST – Transmit A Multicast
AT+MCAST:nn,<ID>,<data>
Notes
When attaching the node’s EUI64 to the network
frame the maximum payload reduces to 74
bytes
Entries in the multicast table must be set to
endpoint 01 to trigger the desired prompt
Use multicasts sparingly! They are a form of
broadcast so any node may only repeat or
originate up to 8 multicasts in every 8 second
interval
SEDs and MEDs cannot receive multicast
messages
Use on:
All devices
OK or ERROR<errorcode>
Where <errorcode> represents the error code
explained in section 3.
Parameters
nn ranging from 00 to 30
Up to 82 bytes are sent to the multicast group
<ID>. Instead of a 16-bit multicast ID an 8 bit
binding table entry can be specified. The
response OK shows successful transmission.
Successful transmission does not guarantee
successful reception. To make sure data has
been received by a specific node use a unicast
message. Only neighbours which are up to nn
hops away will receive the broadcast. If nn = 01
only direct neighbours will receive the broadcast
and if nn = 00 the entire network will (max. 30
hops).
MCAST:[<EUI64>,]<Length>=<data>
or
MCAST:[<EUI64>,]<length>=<data>,
<RSSI>,<LQI>
Where <EUI64> is the address of the sender
and <length> is the length of the message in
hexadecimal. The EUI64 is only displayed if it is
part of the network header (set bit 0 of S10 to
disable attaching the EUI64 to outgoing
messages). RSSI and LQI are shown if bit 6 of
S0F is set.
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