Infranor Xtracontrol DC2, Руководство пользователя

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User Manual V1.3 | XtracontrolDC2, XtracontrolET2, XtracontrolEC21
Data from analogue inputs
Data from analogue inputs
Feature Value Description
Cable length max. 30 m Only valid for unshielded connection cables
Cables over 30 m in length must be shielded
Modulation method Delta-sigma modulation –
Shared points
between the channels AGND reference
ground –
Clamp arrangement Shielding on common
AGND pins –
Sampling
duration/rate for
measuring values 1 ms A reading is taken from each input channel every
millisecond, regardless of how many channels are
actually in operation.
Sampling rate
Operating mode AI-PT 250 ms In operating mode AI-PT, calculations are carried out
after the millisecond sampling rate. A new value is
available in the user program every 250 ms.
Digital filtering
Possible
filter settings
Time range for averaging Time range for averaging
Operating mode AI-PT
0 1 ms 0.25 s
10 10 ms 2.5 s
100 100 ms 25 s
1,000 1,000 ms (1 s) 250 s
If filtering is active, an average is calculated for the set time range. However a value is still issued during the
sampling rate interval. For example, if the filter is set to 1,000, the average of the measurements for the previous
1,000 ms / 1,000 measurements is issued each millisecond (or, in the case of operating mode AIPT, the average for
the last 250 ms / 1,000 measurements).
The filtering can be activated and configured using CODESYS V3. The sampling rate is constant. It can only be
filtered with a whole multiple of the sampling rate.
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