User manual

Counters
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comparator A6 resets marker N2. The direction coil DC6 of
counter C6 is reset. The counter C6 only operates as an up
counter.
Example: counter with retentive actual value
Select a retentive counter if you wish to retain the actual value
of a counter, even after a power failure or a change from RUN
to STOP.
XSelect the required counter in the
SYSTEM…
J RETENTION… menu.
Circuit diagram display Parameter settings of counter
C6
Parameter settings of analog value comparator A6
I6-------CC6
C6-------SN2
N2-------DC6
A6-N2----RN2
C6 N +
S 01000
A6 EQ +
I1 C6 Æ
F1 +0
I2 0000 æ
F2 +0
OS +0
HY +0
J
The above example scans the value zero. However, any
permissible value within the range of the analog value
comparator function block can be entered.
EZ500_700.book Page 121 Tuesday, May 3, 2005 5:15 PM