System Description
SystemDescriptionandInstallationManualforRangeFinder ICD10000‐01
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8.3.6 DataRequestMessage:Type0x05
This message is a request for the Range Finder to senddata in a response message. The type of data being
requested is specified in the payload of this message, which consists of a single byte that specifies the
responsemessagetype.InresponsetoavalidDataRequestMessage,the
RangeFindersendsanAcknowledge
Message immediately followed by a response message. The structure of the response message depends on
therequestedmessagetype.Seethesectionsforthespecific“RequestMessageType”fordetails.
AnoverviewoftheDataRequestMessageisshowninTable8‐16.Table8
‐17providesthedetailedmessage
definition.AnexampleoftheGPSNavigationDataMessageisfoundinTable8‐18.
Table8‐16DataRequestMessagePayloadStructureOverview
PayloadIndex MessageField Numberbytes
00 RequestMessage Type 1
01 Reserved 3
Table8‐17DataRequestMessagePayloadStructureDetail
RequestMessageType
ByteOffset ByteName FieldDescription
00 RMT0 RMT0 RequestMessageType
0x00‐0x80
0x81
0x82
0x83
0x84‐0x8B
0x8C
0x8D
0x8E
0x8F‐0xFF
Reserved
InstallationResponseMessage
PreflightDataResponseMessage
StatusResponseMessage
Reserved
ModeSettingsMessage
Reserved
VersionResponseMessage
Reserved
RequestedMessageTypecontainsMessageTypebeingrequested.
Reserved
ByteOffset ByteName FieldDescription
01 RES0 Reserved
Thesebytesarereservedforfutureuse.SettoZERO.Allothervaluesareinvalid.
02 RES1
03 RES2
Table8‐18DataRequestMessageExampleData
MessageField ByteValues(original) ByteMsg(Hex)
StartByte AA [AA]
MessageType 0x05DataRequest [05]
MessageID Anarbitrarynumberbetween0and255(inclusive)thatuniquely identifiesthemessage. [05 ]
PayloadLength 4 [04]
PAY‐
LOAD
RequestMessageType
InstallationResponseMessage
[81]
Reserved
[000000]