PiXtend eIO Hardware Manual
6.5.2.1 Voltage outputs
Property
Value
Comment
Type of outputs
analog output
according to IEC 61131-2
DC voltage
in the positive area
Operating mode
voltage output (AO-U)
Conversion method
string DAC
one converter per channel
Rated voltage range
0..10 V
Load impedance range
≥ 500 Ω
Nominal output current
20 mA
at 500 Ω load, 10 V
Digital resolution
12 Bit
Smallest digital step (LSB)
2.44 mV
Max. error at 25°C **
+/- 0.25 % (+/- 25 mV)
of the range of values
Temperature coefficient
+/- 0.01 % pro °C
in the range 0 - 60 °C
ambient temperature
Data format
16 bit integer
raw value (right-justified)
Short circuit protection
yes
short circuit to GND
Permitted cable length
< 3 m
< 30 m
unshielded cables
shielded cables
Table 25: Technical data – analog voltage outputs
** Under EMC exposure deviations of up to 1% (based on the final scale value) are
possible.
Warning!
The external supply of voltages (for example 24 V) to analogue outputs
is not permitted and can lead to the failure of the outputs.
Always make sure that there is no wiring fault before connecting the
analog outputs.
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