West Control Solutions CI 45 - Manual (Page 26)

g
Note that the counter end must be set to a lower value than the counter start (Cnt.S > Cnt.E)
Resetting the counter
The counter can be reset to the start value by
w
Reset via key combination Enter + increment key
(keep the Enter key pressed and actuate the increment key)
w
An activated limit value Lim1 … Lim3.
+
Tip: When resetting the counter via a limit value, cyclic counting can be realized. Thereby, a pulse divider
is created when the limit value is provided at an output.
Counter divisor
The incoming pulses can be stepped down using parameter Cnt.d . This function is used for
• Scaling the display range, e.g. to prevent display overflow, or for
• Display value dimensioning.
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With a counter divisor of 1000.0 and integration of the least significant digits of the counter value at
extended operating level, e.g. value 9999.9999 can be displayed.
Example:
– Adjusted counter divisor Cnt.d = 100.0 (100 pulses increment the process value by
1)
– Line 1: process value display
– Line 2: display of the least significant digits of the counter value (Cnt.L) at extended
operating level
– Example value: 24 / 56 = 24x 100 + 56 = 2456
Display overflow
An overflow of the display range is shown by
EEEE on the display. Hoverever, the unit continues incrementing until
reaching the maximum counter width.
Simulation
For simulation of the counter input in the BlueControl ® engineering tool, a counter pulse can be simulated using the
checkbox of digital input di1 or via input window “Freq”. The input value must be specified in kHz.
6.9 Frequency input (optional)
Digital input di1 can be configured as a frequency input (dependent on ordering code). The frequency is a function of
the number of pulses counted during the gate time.
The display value is updated at the earliest after elapse of the gate time.
Settings:
• Frequency measurement ( ConF / Cn.Fr / I.Fnc = 5 )
• Gate time ( ConF / Cn.Fr / Frq.t)
+
During frequency measurement, measurements can be realized, monitored and output via universal inputs
INP1 / INP2, if necessary.
Functions
26 Frequency input (optional) UNIFLEX CI 45
24
56
1 2 E
450
F
cnts