IFM Electronic AS-Interface AC2520 Montageanleitung Seite 10

Parameter setting of the analogue modules
Parameter bit/
Designation
P0
filter
P1, P2
periphery fault
P3
selection
Pt100 elements
Activation of the periphery fault message of the channels 1 to 4
According to the table above the parameter bits P1 and P2 are used to
define which measuring channels can trigger a periphery fault message.
But irrespective of the defined parameters all 4 channels are always
transferred via the AS-Interface.
Operation
Check the safe functioning of the unit. Display by LEDs:
• LED yellow AI1 ... AI4
• LED green AS-i PWR
• LED rot FAULT
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PAGE
Description
1
50Hz filter in the
A/D converter active
0
60Hz filter in the
A/D converter active
Parameter bit
P1 P2
0 0
0 1
1 0
1 1
1
2-wire mode
0
4-wire mode
off:
on:
flashing: analogue signal outside the
on:
on:
flashing: periphery fault *
Comments
The 50Hz filter applies
to the whole of Europe
Periphery fault can be triggered by
1 2
on off
on on
on on
on on
not connected
analogue signal in the measu-
ring range
measuring range
AS-i voltage is applied
AS-i communication error
3 4
off off
off off
on off
on on