Measurement Computing DBK70 - Manual (Page 72)

6-6 Fundamentals of Obtaining Vehicle Data 928494 DBK70 User’s Manual
Example Setup from SAE J2190
Note: Although most of the vehicle and network module manufacturers comply with the SAE J2190
standard, it is not a requirement. Contact the vehicle or node manufacturer for the exact specifications of
the protocol for the specific vehicle under test.
The following example shows how to develop the Filter and Message fields for a mode 22 message
defined in the SAE J2190 document. The following diagram is a excerpt from the standard.
The standard defines the network message structure for the data request from the DBK70 and the data
response from the target network module on the network. The following diagram details how the DBK70
Message field is constructed using the 1
st half of the J2190 excerpt shown above, “Request from Tool to
Vehicle”. This example sets up a channel to receive RPM from a Ford vehicle.