SDMO RENTAL POWER R550C2 User And Maintenance Manual page 298

SAE J1939-73 : March 2004
FMI and Description
FMI=0—DATA VALID BUT ABOVE NORMAL OPERATIONAL RANGE - MOST SEVERE LEVEL
The signal communicating information is within a defined acceptable and valid range, but the real world condition is above what would
be considered normal as determined by the predefined most severe level limits for that particular measure of the real world condition
( Region e of the signal range definition) Broadcast of data values is continued as normal. Broadcast of data values is continued as
normal.
FMI=1—DATA VALID BUT BELOW NORMAL OPERATIONAL RANGE - MOST SEVERE LEVEL
The signal communicating information is within a defined acceptable and valid range, but the real world condition is below what would
be considered normal as determined by the predefined least severe level limits for that particular measure of the real world condition
( Region
e
Broadcast of data values is continued as normal.
FMI=2—DATA ERRATIC, INTERMITTENT OR INCORRECT
Erratic or intermittent data includes all measurements that change at a rate that is not considered possible in the real world condition
and must be caused by improper operation of the measuring device or its connection to the module. Broadcast of data value is
substituted with the "error indicator" value.
Incorrect data includes any data not received and any data that is exclusive of the situations covered by FMIs 3, 4, 5
and 6. Data may also be considered incorrect if it is inconsistent with other information collected or known about the system.
FMI=3—VOLTAGE ABOVE NORMAL, OR SHORTED TO HIGH SOURCE
a. A voltage signal, data or otherwise, is above the predefined limits that bound the range ( Region e of the signal range definition).
Broadcast of data value is substituted with the "error indicator" value.
b. Any signal external to an electronic control module whose voltage remains at a high level when the ECM commands it to low.
Broadcast of data value is substituted with the "error indicator" value.
FMI=4—VOLTAGE BELOW NORMAL, OR SHORTED TO LOW SOURCE
a. A voltage signal, data or otherwise, is below the predefined limits that bound the range (Region e of the signal range definition).
Broadcast of data value is substituted with the "error indicator" value.
b. Any signal external to an electronic control module whose voltage remains at a low level when the ECM commands it to high.
Broadcast of data value is substituted with the "error indicator" value.
FMI=5—CURRENT BELOW NORMAL OR OPEN CIRCUIT
a. A current signal, data or otherwise, is below the predefined limits that bound the range (Region e of the signal range definition).
Broadcast of data value is substituted with the "error indicator" value.
b. Any signal external to an electronic control module whose current remains off when the ECM commands it on. Broadcast of data
value is substituted with the "error indicator" value.
FMI=6—CURRENT ABOVE NORMAL OR GROUNDED CIRCUIT
a. A current signal, data or otherwise, is above the predefined limits that bound the range. ( Region e of the signal range definition).
Broadcast of data value is substituted with the "error indicator" value.
b. Any signal external to an electronic control module whose current remains on when the ECM commands it off. Broadcast of data
value is substituted with the "error indicator" value.
FMI=7—MECHANICAL SYSTEM NOT RESPONDING OR OUT OF ADJUSTMENT
Any fault that is detected as the result of an improper mechanical adjustment or an improper response or action of a mechanical
system that, with a reasonable confidence level, is not caused by an electronic or electrical system failure. This type of fault may or
may be directly associated with the value of general broadcast information.
FMI=8—ABNORMAL FREQUENCY OR PULSE WIDTH OR PERIOD
To be considered in cases of FMI 4 and 5. Any frequency or PWM signal that is outside the predefined limits which bound the signal
range for frequency or duty cycle (outside Region b or the signal definition). Also if the signal is an ECM output, any signal whose
frequency or duty cycle is not consistent with the signal which is emitted. Broadcast of data value is substituted with the "error indicator"
value.
FMI=9—ABNORMAL UPDATE RATE
Any failure that is detected when receipt of data via the data link or as input from a smart actuator or smart sensor is not at the update
rate expected or required by the ECM (outside Region c of the signal range definition). Also any error that causes the ECM not to send
information at the rate required by the system. This type of fault may or may be directly associated with the value of general broadcast
information.
of the
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signal range definition).