May 2014 – TD 293 OPERATING MANUAL – SmartGuard
Page 43
Use Data
Select to use the first or last data in message (if multiple data in
receive window)
Debug Settings:
Enable Timing Log
Check to enable
Enable State Machine log
Check to enable
Enable COM Port Log
Check to enable
Disable MSP Scheduler
Check to disable
6.3
Analog sensors
Open
Analog Sensors
in the
Device
Layout
.
Analog signals are connected through the
Analog 1 and Analog 2 connectors on the
Basic and Extended parts of SmartGuard
respectively. Refer Appendix 1 for
connector pin out details.
Each analog channel has an input range of
0 to 5V where the digitized range is 24
bits.
Scaling to desired units is specified in the
User Maintenance section.
The raw digitized value ( 2
24
/ 5 bit/Volt)
can be scaled and linearized using one or
two 3
rd
order polynomial as shown in the
figure below. Using two polynomials is
suitable when the sensor has different
calibration for lower and upper range,
refer Figure 6-9
Figure 6-9 Two polynomials analog sensor
Figure 6-8 Analog Sensors.
