7 Sensor configuration
44 PHLOX II Ignition Control System
Entering the number 0 in the assignment parameter signifies that the respective sensor has
neither been connected nor activated. Consequently, the input will not be monitored. The
assignment parameters of any sensors which are not required should therefore be set to 0.
The sensor value during operation will then constantly be equal to the minimum value.
Double assignments will not be intercepted. But the HEINZMANN communica-
tions programme DcDesk 2000 reports such multiple configurations in its sen-
sor window.
Parameterising Example:
The ignition timing offset adjuster (indication parameter 2900) is to be connected
to the analogue input, the ignition energy offset adjuster (indication parameter
2901) to PWM input 1, and the manifold pressure sensor (indication parameter
2912) to HZM-CAN customer module input 3. For all other sensors which remain
unused the value 0 is to be entered.
Number Parameter Value Unit
900 AssignIn_IgnTimOffs 1
901 AssignIn_IgnEgyOffs 1
912 AssignIn_MnfldPress 3
4900 ChanTypIgnTimOffs 0
4901 ChanTypIgnEgyOffs 1
4904 ChanTypMnfldPress 8
7.4 Measuring ranges of sensors
In HEINZMANN controls, all sensor parameters and all relating values are provided with
the maximum possible value range. For example manifold pressure covers a maximum
range of 0 to 5 bar.
Since pressure sensors exist with different measuring ranges, the control unit must be in-
formed of the particular value ranges which may differ from the maximum possible physi-
cal value range. These ranges are defined as the physical values corresponding to minimum
and maximum input values such as 0.5 to 4.5 Volts or 4 to 20 mA for analogue inputs or
10 % and 90 % for PWM inputs.
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