Страница 1 мировой engineering стандарты общая спецификация

Note: 
If Encryption or Compression techniques are utilized, then multiple requests for this service (one per
module downloaded) 
may 
be required as determined by the encryption or compression techniques for each
module. Ideally, all software or calibration modules downloaded to a single node should use a single
encryption and/or compression technique.
8.12.2 Request Message Definition (Table 132).
Table 132: RequestDownload Request Message
Data Byte Parameter Name
Cvt Hex Value Mnemonic
#1
RequestDownload Request Service Id
M
34
SIDRQ
#2
dataFormatIdentifier
M
xx
DFI_
#3 
Note 1
#4
#5
#6
unCompressedMemorySize = [
Byte1 - MSB
Byte2
Byte3
Byte4 ]
M
M
C1
C2
xx
xx
xx
xx
UCMS_B1
UCMS_B2
UCMS_B3
UCMS_B4
Where:
C1: 
Byte 3 is present when the unCompressedMemorySize parameter contains 3 or 4 bytes.
C2: 
Byte 4 is present when the unCompressedMemorySize parameter contains 4 bytes.

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Note 1: 
Byte1 in the unCompressedMemorySize parameter is always the most significant byte and the last byte of the
unCompressedMemorySize parameter (Byte2 for 2-byte length, Byte3 for 3-byte length, or Byte4 for 4-byte length) is always the least
significant byte of the unCompressedMemorySize parameter.
8.12.2.1 Request Message Sub-Function $Level Parameter Definition. 
There are no sub-function
parameters used by this service.