Sierra Wireless AirLink RV50 Series User Manual page 179

Field
Engine Hours — ALEOS can start and stop counting engine hours based on:
Voltage on power connector Pin 1 (Power pin) from the vehicle battery (Engine Hours On Voltage Level)
•
State (High/Low) of power connector Pin 3 (Ignition Sense pin) (Engine Hours Ignition Enable)
•
If you configure both fields, both conditions must be met before the device begins counting engine hours.
For more information on the power connector pins, refer to the Hardware Configuration User Guide for your AirLink
gateway.
Engine Hours On
Voltage Level
(100 millivolt)
Engine Hours Ignition
Enable
Engine Hours Value
(hours)
Rev 1 Dec. 17
Description
If you want to use this field to trigger counting engine hours, the AirLink gateway must be
using the vehicle battery as a power source (i.e. Pin 1 [VCC] and Pin 2 [ground] on the
AirLink gateway's power connector are connected to the vehicle battery).
Enter the voltage level above which the AirLink gateway starts counting engine hours.
When the voltage from the vehicle battery falls below that value, the device stops counting
engine hours. Enter the desired value of the ignition in millivolts. For example, to set the
voltage level at 13.0 volts, enter 130.
The default value is 0, which means the feature is disabled. Engine hours are not
incremented based on the power pin voltage level.
If Pin 3 (the ignition sense pin) on the AirLink gateway's power connector is wired to the
vehicle's ignition switch, oil pressure switch, or some other digital input, you can use this
field to trigger counting engine hours. The device starts counting engine hours when the
voltage on Pin 3 is high and stops counting when the voltage is low (Ground or 0 volts). For
more information on the power connector pins, refer to the Hardware User Guide for your
AirLink gateway.
Options are:
Disable (default) Engine hours are not incremented based on changes to Pin 3.
•
Enable
•
Displays an estimate of the number of hours the engine has been running, based on either
the input voltage from the vehicle battery or the voltage on the ignition sense pin,
depending on which of the two previous fields you configured. For more information on the
power connector pins, refer to the Hardware User Guide for your AirLink gateway.
You can also set the engine hours value to an initial value. The default value is 0. The
maximum allowed value is 65535.
You can also use an AT Command to set this value. For more information, see
on page 437.
Note: You can configure Events Reporting to send reports based on this value. For more
information, see Events Reporting Configuration
179
Services Configuration
on page 247.
*ENGHRS
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