Eaton PROFIBUS-DP EZ204-DP User Manual Page 126

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Wiring with EZ
MN05013003E122
The example shows the counters C5 to C7 as retentive
counters.
The counter has the value 450 before the power supply is
switched off.
Figure 55: Retentive counter
The numerical value 450 is retained even after a power outage.
U = supply voltage of the device
High-speed counters, EZ-
DA, EZ-DC
EZ provides various high-speed counter functions. These
counter function blocks are coupled directly to digital inputs.
The following functions are possible:
Frequency counters: C15 and C16
High-speed counters: C13 and C14.
Frequency counters
EZ provides two frequency counters C15 and C16 for use as
required. The frequency counters can be used for measuring
frequencies. The high-speed frequency counters are
permanently connected to the digital inputs I3 and I4.
Frequency counters C15 and C16 can be used for
determining motor speeds, volume measurement using
volume meters or the running of a motor.
M 9 - M12 Æ
M13 - M16
N 9 - N16
C 5 - C 7 åæ
C 8
C13 - C16
T 7
T 8
T13 - T16
D 1 - D 8
Circuit diagram display Parameter settings of counter C5
I6-------CC5
C5-------ÄQ3
I8-Q3----RC5
C5 N +
S 00565
U
햲햲
EZ500_700.book Page 122 Tuesday, May 3, 2005 5:15 PM
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