Technical Handbook 111
The second line shows the record currently displayed, out of the total number of records (the
maximum number of records is 16).
The fourth line shows the recording date and time.
The fifth line shows the diagnostic code. It contains:
•
Engines implementing the SAE J1939 standard (all those selectable with the
parameter P.0700, excluding the MTU MDEC). Diagnostic information according to
the standard J1939 are provided for this type of engines:
o
SPN
(Suspect Parameter Number): is a numeric code showing the engine
part/compo
nent that generated the diagnostic code (in the example, “100”
identifies oil pressure measure).
o
FMI
(Fault Mode Identifier): is a numeric code between 0 and 31 that identifies
the kind of problem (in the example, “1” indicates an excessively low value of
the measure, thus requiring engine stop).
o
In addition, if the controller knows the SPN and FMI codes combination
related to the selected engine type, it will also display a diagnostic code
associated to the problem (
DTC
). These codes are available in the engine
technical handbook (in the example, code “6.6” identifies a low oil pressure
problem).
•
MTU MDEC engines. These engines do not follow the standard J1939 but use their
own protocol. For these engines, values SPN, FMI and OC are not displayed; the DTC
value is the diagnostic code described in the engine technical handbook; problem
description is always shown.
The seventh and eighth line show a text description of the problem, if available.
The more recent record is associated to the highest number. Use
the ▲ and ▼ buttons to
scroll cyclically trough all recordings.
These diagnostic codes can be reset to zero using a command of the serial port. To send the
command you need to write in sequence (within 5 seconds):
•
HOLDING REGISTER 101: enter the password configured with the parameter P.0004.
•
HOLDING REGISTER 102: enter the value “61”.
The controller stores only the DTCs read by Modbus from the electronic batteries.
This archive has a capacity of 32 records. Every following record overwrites the older one.
To display all records, the controller uses one page of the display.
H.33 HISTORY LOGS |
5 DTC-ENGINE 16/16
---------------------
17/03/2014 14:27:12
DTC:6.6 SPN:100 1 1
Engine oil pressure
Data low (shutdown)
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