Страница 1 мировой engineering стандарты общая спецификация

Data Byte Parameter Name
Cvt Hex Value Mnemonic
#1
MessageNumber = [stopSendingPositiveResponse]
M
00
DPID_
--``,,``````,``,,``,,,`,`,`,,-`-`,,`,,`,`,,`---
Page 216
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
If the request message contains any other sub-function parameter ($Level) value, then the positive response
message contains the DPID number requested and data bytes associated with that DPID, as illustrated by
Table 194.
Table 194: ReadDataByPacketIdentifier, $Level = $01, $02, $03, or $04 Positive Response Message
Data Byte Parameter Name
Cvt Hex Value Mnemonic
#1
MessageNumber = [
DPID#]
M 01 thru 7F,
or
90 thru FE
DPID_
#2
dataRecord = [ Data Byte #1
M
2
xx
DB_1
:
:
:
:
:
#8
Data Byte #7]
U
xx
DB_7
Where:
M2 
= This byte shall always be present for static DPIDs. For dynamic DPIDs this byte shall always be
present once the DPID contents have been assigned via the $2C service. The number of bytes
transmitted in the data record shall be 0 for a given dynamic DPID if that DPID had not previously
been defined via the $2C service.
8.19.3.1 Response Message Data Parameter Definition. 
Table 195 specifies the data parameter definitions
for this service.
Table 195: Response Message Data Parameter Definition
Definition
MessageNumber

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Page 216 of 336
This data byte of a UUDT response from this diagnostic service contains the DPID number which identifies to
the tool the meaning of the remaining data bytes in the message.
dataRecord[]
These are the bytes containing the actual operating data values for each of the signals (e.g., PIDs) assigned
as part of the specific DPID requested.