Blueprint Subsea seatrac X100 Series, Manual

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SeaTrac Serial Command Interface Reference
Page 113
8.2.3. CID_ECHO_RESP
The CID_ECHO_RESP status message is generated by the sending beacon when it receives an
ECHO response back from the remote beacon. The payload of the response message should
carry a duplicate copy of the data that was transmitted with the
CID_ECHO_SEND command.
This message is a status message that may be sent by the beacon at any time (not in
response to a command message) depending on acoustic activity triggering a
transceiver event.
Status Message Parameters
Parameter Type Description
MSG_ID CID_E Command identification code (CID_ECHO_RESP)
ACO_FIX ACOFIX_T A Fix structure containing information relating to
the range and position of the beacon sending data.
ECHO_LEN UINT8 The number of bytes received back from the remote
beacon in the Echo acoustic packet.
Valid values are from 0 to 31.
ECHO_DATA UINT8[x] The array of data received in the Echo acoustic
packet, where “x” is the value specified in
ECHO_LEN.