PNI TCM 5 - Manual (Page 17)

PNI Sensor Corporation Doc #1007537 r12
TCM3 & TCM5 User Manual – Sept 2012 Page 17
North Reference:
Magnetic: When the “Magnetic” radio button is selected, heading will be relative to Magnetic North.
True: When the “True” radio button is selected, heading will be relative to True North. To use North
Heading in “True” mode, the declination needs to be set in the “Declination” window. Refer to “Using
the TCM Declination Value” section for more information.
Endianess:
Use to select either Big Endian or Little Endian; default is Big Endian.
Filter Settings:
Taps: Use to select either a 0 (no filter), 4, 8, 16, or 32 samples and apply the values to a FIR filter
prior to calculating the heading. These filters allow for a much more stable reading, but can make the
acquisition of the data by the program slower. The default setting is 32.
Acquisition Parameters:
Mode:
 When “Poll” is selected the TCM Studio program requests the data from the unit, and once it
has been sent, the program will request the data again at the interval set in the “Poll Time”
box. If the time is set to 0 then the TCM Studio will request the data as soon as the previous
request has been fulfilled.
 When “Push” is selected the unit will be in Interval Mode, which is internal to the unit. Once
the unit has been set to Interval Mode
and the interval time has been set in the “Interval
Time ” setting box, the unit will send out the preset data at the desired interval without prompt-
ing. If the interval is set to 0 then the unit will send the data as soon as the previous data
stream has been sent.
Acquire Time:
The “Acquire Time” setting box sets the time between samples taken by the unit. This is an
internal setting that is NOT tied to the time with which the unit transmits the data out to the
program or host.