Страница 1 мировой engineering стандарты общая спецификация

Table 186: Example of Physical Request for ReadDiagnosticInformation With Sub-Parameter = $82
T = Frame Sent By Tester, N = Frame Sent By Node, shaded region indicates PCI
Frame Type CAN Id
#1
#2
#3
#4
#5
#6
#7
#8
T(USDT-SF)
$241
$03
$A9
$82
$02
---
---
---
---
N1(UUDT)
$541
$82
$00
$04
---
---
---
---
---
:
N1(UUDT)
$541
$82
$00
$05
---
---
---
---
---
:
N1(UUDT)
$541
$82
$00
$04
---
---
---
---
---
:
T(USDT-SF)
$241
$03
$A9
$82
$00
---
---
---
---
N1(UUDT)
$541
$82
$00
$00
---
---
---
---
---
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Table 187 is the same as the example in Table 186, but with negative response message RC_78.
Table 187: Example of Physical Request for ReadDiagnosticInformation With Sub-Parameter = $82 And
RC = $78
T = Frame Sent By Tester, N = Frame Sent By Node, shaded region indicates PCI
Frame Type CAN Id
#1
#2
#3
#4
#5
#6
#7
#8
T(USDT-SF)
$241
$03
$A9
$82
$02
---
---
---
---
N1(USDT-SF)
$641
$03
$7F
$A9
$78
---
---
---
---
:
N1(UUDT)
$541
$82
$00
$04
---
---
---
---
---
:
N1(UUDT)
$541
$82
$00
$05
---
---
---
---
---
:
N1(UUDT)
$541
$82
$00
$04
---
---
---
---
---
:
T(USDT-SF)
$241
$03
$A9
$82
$00
---
---
---
---
:
N1(UUDT)
$541
$82
$00
$00
---
---
---
---
---
8.18.6 Node Interface Function.
8.18.6.1 Node Interface Data Dictionary (Table 188).
Table 188: Node Interface Data Dictionary of ReadDiagnosticInformation Service Pseudo Code
Variable/Meaning
Values
message_data_length
TesterPresent_Timer_State
DTC_send_on_change_flag
Reference Common/Global
Pseudo Code Data
Dictionary For Definition Of
These Flags/Variables
stored_status_mask
This variable is used to store the most recently requested status mask in
association with a message $82 request.
$00 thru $FF
dtc_found
This local flag is used to indicate whether a DTC number/FailureType
combination requested via message $80 is locally supported.
TRUE, FALSE
--``,,``````,``,,``,,,`,`,`,,-`-`,,`,,`,`,,`---
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Variable/Meaning
Values
send_on_change_count
This variable is used to store the most recently tabulated count of DTCs
matching the single tester-defined send-on-change DTC status mask. As soon
as service $A9 message $82 is activated, the node will calculate the number of
DTCs satisfying the tester-defined masking criteria and store the count in this
variable.
After acknowledging the tester’s request, the node operating in steady state will
$0000 thru $FFFF
Signed value.

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send updated DTC count information if the current count is different from that
which is stored in this variable. This variable will then be updated with the
current count of DTCs satisfying the filtering criteria.
temp_count
This is a temporary storage variable for message $82. It is a 2-byte counter
used to store the current count of DTCs that match the tester-defined filtering
criteria.
$0000 thru $FFFF
Signed value.