User's Manual

InterSense Doc. No. 072-00105-0I07 Rev. 4.2
IS-900 User Guide Page 81 of 177
4.5.3. Fastrak™ System and Data Records
Data Record This record is sent in response to the P command in polled
mode or continuously in continuous mode. A separate data
record is sent for each active station. The list of data items
in each station record depends on how the list was set up
with the O command. For most of the commonly used data
list items, the format depends on commands F, f, U, u, MT,
Mt.
0{stationNum}{status}{dataItem1,dataItem2,....}
stationNum
A hexadecimal number up to C (decimal 12)
status An ASCII space character. This status byte is
currently unused.
dataItemX
ASCII In ASCII numbers, set with the F command, any
numbers returned as floats are returned as
ASCII numbers. Each number is 7 ASCII
characters: a sign, 3 digits, a decimal point and
2 more digits. If programming in C use
scanf(“%7.2f”, &value) to read them.
Binary In binary mode, set with the 'f' command, the
floats are sent as 4 byte IEEE 32-bit floats.
Time Stamp 32 bit floating point number
ASCII In ASCII mode it is allowed 14 characters and is
displayed as an integer (digits after the floating
point are ignored).
Binary In binary mode it is returned as a 32 bit float.
Binary16 mode
Set by selecting 18, 19 and/or 20 only with the
O command. This is the fastest way to get data
but the most difficult to decode and the least
accurate.