Siemens IP-Module Especificaciones Pagina 72

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Position Decoding IP 240
Fig. 7-4. Evaluating the Reference Tracks
1)
The interrupt request is reset when the interrupt request bytes are scanned.
END7ANF7
Backwards
1)
END1
ANF2 END2
ANF1
ForwardsActual value
TRACK1
Status bit
REF1
TRACK2
Status bit
REF2
TRACK7
Status bit
REF7
Interrupt
IRx
Setting/resetting the
outputs during con-
figuring with
a)
DIG1/8=0
and
DIG2/8=1
b)
DIG1/8=1
and
DIG2/8=0
D1
D2
D1
D2
Explanations:
An interrupt is to be triggered as soon as the actual value enters TRACK 2
Output D2 has been coupled to TRACK 2 and output D1 to TRACK 7.
Triggering the interrupt
Interrupt IRx is generated as soon as the actual value enters TRACK 2.
Setting/resetting the outputs:
To a) Digital output D2 is set when the TRACK 2 is entered and reset when it is exited.
Digital output D1 is set when TRACK 7 is entered, and must be reset by setting control bit
DA1F to 0 and DA1S to 0.
To b) Digital output D2 is set when TRACK 2 is entered, and must be reset by setting control bits
DA2F to 0 and DA2S to 0.
Digital output D1 is set when TRACK 7 is entered and reset when it is exited.
If an output is coupled to several overlapping tracks, these tracks are treated as a single track as
regards actual value-dependent setting and resetting of the output.
7-8
EWA 4NEB 811 6120-02a
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