Measurement-computing DBK70 User Manual download pdf (Page 76)

6-10 Fundamentals of Obtaining Vehicle Data 928494 DBK70 User’s Manual

The following diagram is an excerpt from the J2190 standard showing the layout of the DDP request and

response messages. Once the request message has been transmitted, the target module will periodically

transmit the requested DDP, so no further transmissions of the request message are necessary.

The following diagram shows how to construct a request message. This message, which stimulates the

network module to continually transmit the specified DPID#, is issued after the DDP is defined. It includes

the DPID# and the desired data rate.

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*372538B-01* 1
Table of Contents 3
(p/n 1056-0902) 4
Unpacking the DBK70 1 5
919192 DBK70 User’s Manual 6
946898 Introduction 2-1 7
946898 Introduction 2-3 9
946898 DBK70 User’s Manual 10
System Setup 3 11
Configuring a DBK70 12
Differential Measurements 13
Single-Ended Measurements 13
927994 DBK70 User’s Manual 14
927994 System Setup 3-5 15
927994 System Setup 3-7 17
Hardware Reference 4 19
Network Port 20
P1 Multiplexed Output Port 21
Power Issues 22
LED Operation 22
[Included] 24
[Included] 24
[Optional] 25
Chassis Label 27
Card Installation 28
Analog Output Cards 29
919092 DBK70 User’s Manual 30
Contents 31
Parsing Serial Strings 5-34 32
Introduction 33
Features of PidPRO 34
Database Concepts 35
PidPRO Quick-Start 36
919092 5-7 37
PidPRO+ Only 38
Database Management 39
919092 PidPRO & PidPRO+ 40
Reference Guide 41
Database Menu 42
919092 5-13 43
Set Channel Update Rate 45
Communications Menu 46
Connect 46
Set COM Port 46
Database Item View Window 47
Detailed View 49
Source Channel 50
Message Send Rate 50
Msg 1 and Msg 2 51
Data Length (bits) 53
Byte Order 53
919092 5-25 55
Low Limit / High Limit 56
Units/Bit 56
Binary Point 56
Set to Limits (Button) 56
Range Low / Range High 57
Summary View 58
PidPRO+ Only 61
Clear Text Window 63
Begin Monitoring 63
Stop Monitoring 63
Send Outgoing Message 63
Close Monitor 63
Parsing Serial Strings 64
LogView 65
General Operation 67
928494 DBK70 User’s Manual 68
Example Setup from SAE J2190 72
Using Diagnostic Data Packet 74
Data Frame 78
Creating a Request Message 82
J1939 Considerations 83
OBD CAN Considerations 84
Supported Standards 84
PID $00 value from vehicle 85
(decimal) 85
918692 DBK70 User’s Manual 86
Troubleshooting 8 95
Hardware Related Steps 96
Physical 97
Environmental 97
Electrical 97
Analog Outputs 97
Software Requirements 97
948796 DBK70 User’s Manual 98
Appendix A A 99
919092 Appendix A 100
Vehicle Network Interface 101
WARNING 102
CAUTION 102
Preparation 102
Replacing the Chip at U8 103
Replacing the Chip at U9 103

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Measurement-computing DBK70 User Manual Page 76

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