Beckhoff KL301 Series, Документация

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Access from the user program
KL301x, KL302x 39 Version: 4.1
• R36: Limit value 2 (Y_2)
If the process data are outside this threshold, the appropriate bits are set in the status byte.
• R37: Filter constant
[0x0000]
If the internal filter is activated via R32.11, the following filter constants can be selected in R37. In the
standard setting, the corresponding conversion time is 2.5 ms:
Applies to all terminals from firmware version 3x.
This documentation applies to all terminals from firmware version 3x. The version information can
be found on the right-hand side of the terminal in the serial number: xxxx3xxx.
Example: 5298 3A 2A => the firmware version is 3A .
R37 Explanation
0x0000 2nd order FIR filter default value
0x0100 1
st
order IIR filter, cut-off frequency f
g
approx.1 kHz The implemented IIR filters do not have
any notch behavior, i.e., they do not
explicitly suppress any frequency.
0x0200 1st order IIR filter, cut-off frequency f
g
approx. 100 Hz
0x0300 1
st
order IIR filter, cut-off frequency f
g
approx. 50 Hz
0x0400 1
st
order IIR filter, cut-off frequency f
g
approx. 20 Hz
0x0500 1
st
order IIR filter, cut-off frequency f
g
approx. 10 Hz
0x0600 1
st
order IIR filter, cut-off frequency f
g
approx. 5 Hz
0x0700 1
st
order IIR filter, cut-off frequency f
g
approx. 1 Hz
0x1000 50 Hz FIR filter
Averaging over 16 values and first notch 25 Hz
In contrast to the IIR filters, FIR filter have
notch behavior. The timer settings of the
notch filter are made via channel 0 of the
terminal. This means that the 50 Hz filter
on channel 0 and the 60 Hz filter on
channel 1 cannot be active
simultaneously.
0x2000 60 Hz FIR filter
Averaging over 16 values and first notch 20 Hz
Other
values No filter active