Description – National Instruments CAN 372139B-01 User Manual

Page 57

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Chapter 5

Automotive Diagnostic Command Set API for LabVIEW

© National Instruments Corporation

5-31

Automotive Diagnostic Command Set User Manual

code is the error code number identifying an error. A value of 0
means success. A negative value means error: the VI did not
execute the intended operation. A positive value means warning:
the VI executed intended operation, but an informational warning
is returned. For a description of the code, wire the error cluster to
a LabVIEW error-handling VI, such as the Simple Error
Handler
.

source identifies the VI where the error occurred.

Description

For the VW TP 2.0, you must disconnect the connection link to the ECU to properly terminate
communication to the ECU. This VI sends the proper disconnect messages and unlinks the
communication.

You can create a new connection to the same ECU using

VWTP Connect.vi

again.

There is no equivalent for the ISO TP (ISO 15765-2), as the ISO TP does not use a special
communication link.

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