Sierra Wireless MP 700 Series, Command Reference Manual

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MP 700 Series GPS AT Command Reference
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!MPIDTIME=
<value>
!MPIDTIME?
Sets the inactivity timeout
Sets the interval after which a connection is lost if no data transmission occurs.
This applies only if the operating mode is “On demand”. (See
!MPOPMODE .)
This timeout has no effect during PAD sessions. (The PAD has its own inactivity
timer. See
!MPPADCONF .)
The <value> is in seconds (minimum 1, maximum 3600). The default is 2.
!MPIGNSENSE? Report ignition status
The white wire of the power harness is the ignition sense. The modem powers
on when this wire is pulled high. (See the
Installation in Vehicles Guide on the
MP 700 Series GPS CD.)
!MPIGNSENSE? returns either:
•
0
Off—ignition sense is pulled low (less than 2 V)
•
1
On—ignition sense is pulled high (5 to 36 V)
!MPMTCONF=
<engid>,
<ctype>,
<destip>,
<destport>,
<lowtmr>,
<fasttmr>,
<gpstmr>
!MPMTCONF?
<n>
Configure MT protocol
A proprietary protocol called “MT” is used to report the GPS and I/O data from
the modem. (“MT” is for “Monitoring and Tracking”. The protocol defines the
contents and format of the reported data.) The
Software Installation,
Configuration, and Integration Guide on the installation CD provides a
description of this protocol.
The modem provides four independent reporting engines, allowing the MT data
to be simultaneously sent to four different destinations. The
!MPMTCONF
command sets the destination addresses, port numbers, and timers for each of
the four engines.
Three timers control how frequently MT reports are sent: the low rate timer, the
high rate timer, and the GPS timer. Each of these timers can be set to send
reports at a different frequency. The high rate timer only becomes active when
an alarm condition is triggered by a rise or drop in the level of one of the digital I/
O channels. (The
!MPDIOCFG command controls the alarm triggers on the
digital I/O channels.)
When there is no active alarm, the low rate timer and GPS timer determine the
frequency of the reports. Where both timers are enabled, the timer with the
shortest interval controls the report frequency. The GPS timer (which is in
seconds) is generally set to a shorter interval than the low rate timer (which is in
minutes). (Having the two timers allows for a system that reports data more
frequently in certain conditions. For example, the GPS timer can be disabled
when the vehicle is stationary and enabled when the vehicle is moving.)
Continued on next page.
Table 3-9: Command Reference Table (ASCII Alphabetic)
Command Description