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The easYgen-320/X and easYgen-350/X are able to visualize J1939 DM1 or DM2 alarm messages in
the 7-segement display, which are sent by the engine control to the easYgen via the CAN bus.
The following figure of an easYgen-300 shows a typical J1939 DM1 alarm message display.
The following content is visualized for DM1 and DM2 error messages:
- DM identifier - DM1 (Data Memory 1) or DM2
- SPN number - Suspect Parameter Number
- FMI number - Failure Mode Identifier
- OC - Occurrence Counter
The error messages are indicated by a scrolling display. The scrolling display starts with a header,
displays the single messages, and ends with an end marker. The header (J1939) is displayed left-justified in
the 7-segement display for one second and then it starts to scroll. The header and the first error message
are separated by a blank. The four content elements of an error message are separated by a dash. Individual
error messages are separated by two blanks. The last error message and the end marker are separated by two
blanks. The end marker (End) is displayed for one second. Then the scrolling display starts again.
Above example indicates the following three DM1 error messages:
| Error # |
DM identifier |
SPN # |
FMI # |
OC |
| 1 |
dn1 (DM1) |
0120 |
20 |
03 |
| 2 |
dn1 (DM1) |
0190 |
05 |
09 |
| 3 |
dn1 (DM1) |
1312 |
31 |
10 |
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