32 AXN Quick Start Kit User Guide (BK/0045 | 9 Aug. 2021)
3
The parameter P_MyAXN_ADC_401_Top-blockTemperature indicates the temperature of the built in temperature
sensor on the top-block of the module. This can be used as a cold junction for thermocouple sensor operation (see
“Configuring the AXN/ADC/401 for thermocouple inputs” on page 39
).
The parameter P_MyAXN_ADC_401_ModuleTemperature indicates the temperature of the built in temperature
sensor on the module motherboard. This can be used as a reference temperature for customer defined
“Configuring the AXN/ADC/401 for thermocouple inputs” on page 39
).
Each channel has three filter tap parameters that can be sampled separately. The operating range for the channel
is applied to all filter tap points and is set by defining the range on filter tap point 0 for each channel.
The range value is dependent on the input mode selected. For differential ended, single ended, full-bridge, half-
bridge, AC coupled, and ICP modes the range is in volts and limited to +/-10V.
For Thermocouple and RTD modes, the range is in Celsius and limited to -270 ºC to +2320 ºC for Thermocouple
mode and -200 ºC to 660 ºC for RTD modes.
The input mode for each channel is set by selecting from the drop-down list in the Input Mode column.
Defining Filter Mode and Filter Cutoff for Input Modes
For each filter tap point per channel, you can define the Filter Mode applied to each filter tap point independently.
FIR applies a Kaiser window Beta = 6, 49-tap FIR filter.
IIR8 applies an 8th order Butterworth IIR filter.
IIR16 applies a 16th order Butterworth IIR filter.
Summary of Contents for AXN
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