Bosch DDU S2 Plus - Page 84

Input pin Pull-up
resistor is
activated
Sensivity and
Offset value
for sensor
Adjustment
is enabled
Channel is linked
to ANA04
Pin Diagnosis
Name and
Description
editable
Available measurements for channel:
Measurement label Function
raw_name mV value of sensor
raw_name_fi filtered mV value of sensor
name physical value of sensor
name_fi filtered physical value
Configuring a generic nonlinear sensor
Example: Thermistor 5 kOhm
▪ From sensor data sheet: resistance values over temperature
▪ The sensor has a nonlinear behaviour
▪ Use characteristic curve for linearization
▪ Input voltage is the ratio between pull‐up resistor and thermistor
Pin
Thermistor
+5V
3 kOhm
1. Click ‘Measurement Sources’ in the Toolbox.
2. Expand the list of ‘I/O Channels’ by clicking on ‘+’ in the DDU 8 Project Tree.
3. Drag the ‘Characteristic Curve’ analogue signal source from the Toolbox and
drop it on the desired analogue input channel in the DDU 8 Project Tree.
10.3.3
10 | Analog and Frequency Inputs
84 / 136 DDU S2 PLUS Manual Bosch Motorsport