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B TRIMBLE ASCII INTERFACE PROTOCOL (TAIP)
186 Copernicus GPS Receiver
Protocol Overview
Trimble ASCII Interface Protocol (TAIP) is a Trimble-specified digital
communication interface based on printable ASCII characters over a serial data link.
TAIP was designed specifically for vehicle tracking applications but has become
common in a number of other applications because of its ease of use. TAIP supports
both scheduled and polled responses.
TAIP messages may be scheduled for output at a user specified rate starting on a
given epoch from top of the hour. For communication robustness, the protocol
optionally supports checksums on all messages. It also provides the user with the
option of tagging all messages with the unit's user specified identification number
(ID). This greatly enhances the functional capability of the unit in a network
environment. Additionally, given the printable ASCII format of all communication,
TAIP is ideal for use with mobile data terminals, modems, and portable computers.
Although, receivers incorporating this protocol are shipped from the factory with a
specific serial port setting, the port characteristics are fully programmable through
TAIP messages.
The Copernicus GPS Receiver supports the following TAIP messages.
Message Description
AL Altitude/Up Velocity
CP Compact Position Solution
ID Identification Number
IP Initial Position
LN Long Navigation Message
PR Protocol
PT Port Characteristic
PV Position/Velocity Solution
RM Reporting Mode
RT Reset Mode
ST Status
TM Time/Date
VR Version Number