CSI Wireless Vector Sensor User Manual

Vector Sensor Reference Manual 102
7. Binary Data
The Vector Sensor supports a selection of binary data messages that provide improved
communication port efficiency.
7.1 Binary Message Structure
The Binary messages supported by the Vector Sensor are in an Intel Little Endian format for direct
read in a PC environment. You can find more information on this format at the following Web
site.
www.cs.umass.edu/~verts/cs32/endian.html
Each binary message begins with an 8-byte header and ends with a carriage-return line-feed pair
(0x0D, 0x0A). The first four characters of the header is the ASCII sequence $BIN.
The following table provides the general binary message structure.
Note - For clarity, each table begins on a new page.
Table 7-1 Binary Message Structure
Group Components Type Bytes Value
Synchronization String 4 byte string 4 $BIN
BlockID - a number
which tells the type of
binary message
Unsigned
short
2 1, 2, 80, 93, 94,
95, 96, 97, 98,
or 99
Header
DataLength - the length
of the binary messages
Unsigned
short
2 52, 16, 40, 56,
96, 128, 300,
28, 68, or 304
Data Binary Data - varying
fields of data with a
total length of
DataLength bytes
Mixed fields 52, 16, 40, 56, 96,
128, 300, 28, 68, or
304
Varies - see
message tables
Checksum - sum of all
bytes of the data (all
DataLength bytes). The
sum is placed in a 2-byte
integer
Unsigned
short
2 Sum of data
bytes
CR - Carriage return Byte 1 0D hex
Epilogue
LF - Line feed Byte 1 0A hex
The total length of the binary message packet is DataLength plus 12 (8 byte header, 2 byte
checksum, and 2 bytes for CR, LF).

CSI Wireless Vector Sensor Specifications

General

Brand	CSI Wireless
Model	Vector Sensor
Category	Receiver
Language	English