Binary Return Messages - Type 605

Binary Return Messages (Type 605)

Binary return messages are obtained by QTRACS as a result of periodic polling of the NMC by the Communications Manager process. Each of them is delivered to the appropriate external application via this Binary Return Message transaction.

Binary Return Messages are routed via binary data type and subtype. The subtype is defined to be the first byte of the binary information contained in the message body. Subtypes are in the range 0 through 255. The QTRACS Router can be instructed to route all subtypes of a single binary data type by setting *ALL as the subtype in the binary message routing database.

Binary Return Message transaction format

From	To	Size	Type	Field Description
1	5	9	Packed	Global Message Handle
6	8	3	Character	Transaction Type = 605
9	9	1	Character	Source Entity Type
10	19	10	Character	Source Entity Identifier
20	24	9	Packed	Forward Global Message Handle
25	25	1	Character	Trip Status
26	26	1	Character	Return Message Priority
27	30	7	Packed	Mobile Firmware Version Number
31	31	1	Binary	Mobile Feature Enable Indicators
32	32	1	Character	QMASS Copy
33	42	10	Character	QMASS Auxiliary ID of Owner
43	73	31	Character	QMASS Return Auxiliary ID String
74	173	100	Character	Reserved - returned as blanks
174	176	3	Zoned	Binary Data Type
177	179	3	Zoned	Reserved - returned as zero
180	186	13	Packed	Message Time
187	190	4	Zoned	Message Length
191	1615	1425	Character	Message Body

Binary Return Message transaction field descriptions

Field	Description
Global Message Handle (GMH)	This packed decimal field contains the global message handle. The global message handle (GMH) is a universal handle that can be used to reference a specific message. Each return message is assigned a global message handle by QTRACS.
Transaction Type	This is the code that identifies the transaction as a binary return message. It is a 3-character numeric field that will contain 605.
Source Entity Type	This is a one-character code that identifies the source type of the message; where: V message originated from an owned vehicle T message originated from an auxiliary vehicle
Source Entity Identifier	This is the 10-character source identifier. It identifies the source entity of the message. This should always be a registered QTRACS vehicle identifier.
Forward GMH	This packed decimal field contains the global message handle (GMH) of the forward message to which this return message is a reply. This field may contain the GMH of the forward binary polling message for which this return binary message is a response.
Trip Status	This 1-character field indicates the state of the vehicle's trip status, where: U Unknown I In Trip O Out of TripIn order to successfully determine the Trip Status, a vehicle must be equipped with an MCT that has firmware version 15.59 or above, and the SensorTRACS option must be enabled. Otherwise, the Trip Status will always be set to unknown.
Return Message Priority	This is the priority of the return message; where: 0 normal message 8 panic message 9 priority message
Mobile Firmware Version Number	This 7-digit packed decimal field contains the firmware version number of the vehicle that returned this binary message. This field should be ignored if the source of this message is an auxiliary vehicle (Source Entity Type = 'T'). The field will contain zeros in that case.
Mobile Feature Enable Indicators	This 8-bit byte contains the feature indicators for the vehicle as follows: MSB 7 Not Used 6 Not Used 5 Not Used 4 JTRACS Capable 3 Capable 2 Enabled 1 TrailerTRACS Enabled LSB 0 SensorTRACS EnabledThis field should be ignored if the source of this message is an auxiliary vehicle (Source Entity Type = 'T'). The field will contain zero in that case.
QMASS Copy	This single byte character value indicates whether this is an original message sent from the vehicle or a copy of the message; where: 0 original 1 copy
QMASS Auxiliary ID of Owner	This 10-character field contains the QTRACS auxiliary identifier of the owner of the vehicle.
QMASS Return Auxiliary String	This 31-character string contains the text included in routed return messages from the vehicle to the auxiliary account. This text is specified by the owner of the vehicle at the time the vehicle is made available through QMASS.
Binary Data Type	This 3 character field indicates the type of binary message being returned. 004 SensorTRACS data 006 JTRACS data 007 TrailerTRACS data
Message Time	This 13-digit packed decimal numeric field contains the time and date that the message was sent. This field is in the QTRACS GMT seconds format and may be converted for display using the QTRACS date/time APIs.
Length	This is the length (in bytes) of the message as it is stored in the message body field.
Message Body	This field contains the body of the binary message. It is a variable length field. The length of the field (in bytes) is indicated in the message length field described above. This field can contain a maximum of 1425 bytes of binary data. The content of the message body depends on the binary data type. This is not described in this document.