PiXtend eIO Hardware Manual
Property
Value
Comment
Type of inputs
analog input
according to IEC 61131-2
for DC voltage
single-ended
with GND reference
Operating mode
voltage input (AI-U)
Measuring range
0..10 V DC
Input resistance
20 k
Ω
Analog filtering
cut-off frequency 275 Hz
low pass 2nd order
RF attenuation
52 dB
95 dB
151 dB
at 10 kHz
at 100 kHz
at 1 MHz
Conversion method
successive approximation
one converter with mux
conversion time
45 µs
averaging calculation
5 samples (225 µs)
Digital resolution
10 bit
Smallest digital step (LSB)
9.77 mV
Max. measurement error at
25 °C **
+/- 0.5 % (+/- 50 mV)
of the range of values
Temperature coefficient
+/- 0.01 % per °C
in the range 0 - 60 °C
ambient temperature
Data format
16 bit integer
raw value (right-justified)
Maximum input voltage
30 V
Reverse polarity protection
yes
max. -30 V
Isolation
no
Status display
no
Permitted cable length
< 3 m
< 30 m
unshielded cables
shielded cables
Table 22: Technical data – analog voltage inputs – “10 V area”
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