Configuration 3-16
© 2012 HMS Industrial Networks AB
Doc.Id. HMSI-168-25
Table 3-4 explains how the data point parameters are used when configuring a
diagnostic table.
Note:
See “J1939 Diagnostic Messages” on page 6-9 for details of the format of
the diagnostic tables in the J1939 device input data.
Note:
The J1939 I/O configuration is initialized at X-gateway bootup and when-
ever a new configuration is downloaded to the module from BWConfig. Any
changes made to the I/O configuration will take place immediately after the con-
figuration is downloaded to the module.
Parameter
Description
Allowable
Range
Data Point Type
Set to Active DTC or Previously Active DTC
to configure a diagnostic table.
Active DTC,
Previously
Active DTC
Table Offset
Table Size
The number of diagnostic entries this table
can hold. This will be the maximum amount
of diagnostics that can be placed into the table.
If the J1939 diagnostic message from the
device contains more diagnostics than fit in
the table, only those that fit will be copied,
and the high bit in the table header will be set
to indicate that the table has overflowed. The
table size is limited to 128 entries. Note that
the total space occupied in the J1939 device
input data will be (size * 4) + 2 bytes.
1-128
PGN
This will automatically be set to DM1 or DM2 DM1, DM2
Target Address
The J1939 address of the device from which
this table is to monitor diagnostics.
0-253
Update Rate
Message Offset
This will automatically be set to 0
0
Table 3-4 Input Data Point Parameters for Diagnostic Tables
