Trimble Outdoors SK8 - Manual (Page 148)

C-2 Lassen-SK8 Embedded GPS Module
Trimble ASCII Interface Protocol (TAIP)
C.1 Message Format
All TAIP communication uses printable, uppercase ASCII characters. The interface
provides the means to configure the unit to output various sentences in response to queries
or on a scheduled basis. Each sentence has the following general format:
ABB{C}[;ID=DDDD][;*FF]<
where:
Table C-1. Message Formats
C.1.1 Start of a New Message
The > character (ASCII code 62 decimal) is used to specify the start of a new sentence.
C.1.2 Message Qualifier
A one character message qualifier is used to describe the action to be taken on the
message. The following table lists the valid qualifiers.
Table C-2 Message Format Qualifiers
Details on the use of message qualifiers are given in the last section of this appendix,
Communication Using TAIP.
*
Note – All TAIP message characters must be in uppercase.
> Start of new message
A Message qualifier
BB a two character message identifier
C data string
DDDD Optional 4 character vehicle ID
FF Optional 2 character checksum
< delimiting character
{x} signifies that x can occur any number of times.
[x] signifies that x may optionally occur once.
Qualifier Action
Q Query for a single sentence (sent to GPS sensor).
R Response to a query or a scheduled report (from the sensor)
F Schedule reporting frequency interval in seconds
S Set command to download time to the GPS receiver
D Specify a minimum distance traveled and a minimum and maximum time
interval for the next report