
As function option for each channel a time constant x10ms may be preset for a low-pass
filter. This is a second-order Butterworth filter. Here frequencies, which lie above the crit-
ical frequency, can be filtered. The setting for interference suppression of 50Hz respec-
tively 60Hz is 200ms respectively 170ms.
Range of values: 0 ... 250 (0 = deactivated)
The following diagram shows the transient behavior of the filter with a time constant of
500ms. Here the filter reaches the desired value after 1700ms for the first time.
For each channel an
upper
and a
lower limit
may be defined. Here only values of the
nominal range may be preset, otherwise you receive a parameterization error. By preset-
ting 7FFFh for the upper respectively 8000h for the lower limit value the corresponding
limit is deactivated. As soon as the measuring value is beyond the limits and the limit
value monitoring is activated, a process interrupt is initialized.
3.4.3 Diagnostics and interrupt
Event
Process interrupt
Diagnostics inter-
rupt
parameterizable
Error in project engineering/param.
-
X
-
Measuring range overflow
-
X
-
Measuring range underflow
-
X
-
Limit overflow
X
-
X
Limit underflow
X
-
X
diagnostics buffer overflow
-
X
-
Process interrupt lost
-
X
-
Sensor voltage monitoring
-
X
-
CHxFO Function option
channel x
CHxUL CHxLL Upper limit
value Lower limit value
channel x
VIPA System SLIO
Analog Input
031-1BB10 - AI 2x12Bit 0(4)...20mA - ISO > Diagnostics and interrupt
HB300 | SM-AIO | | en | 17-05
54