Chapter 9—C445 Logic Engine and Expansion I/O
Power Xpert C445 Global Motor Management Relay MN042003EN—January 2019 www.eaton.com 183
CTU—Up Counter
The CTU function block is an up counter that increments the counter value (CV) by one at
the rising edge of the count up (CU) trigger. A rising edge reset (R) trigger will clear the
counter value irrespective of the state of other inputs. The counter value is persistent
through power cycle of the device.
Parameter Data type Description
CU BOOL Count up trigger—rising edge
R BOOL Reset counter value
PV INT Preset value
OUT BOOL Count-up complete flag
CV INT Counter value
Power Loss
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