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GRT1-CT1(-1) Counter Units Section 7-4
■ Default Settings
Press the Default Setting Button on the Preset Tab Page to set the following
default value.
Range 0 Tab Page The tab page to set a comparison range is displayed only when the range is
enabled. Click the Range 0 Button on the Counter Tab Page to enable using
the range and display the Range 0 Tab Page. The digital output will not be
controlled by the comparison function unless a range is set.
Note The digital output will be controlled by the Range only when the Output Con-
trol Bits (bits 12 and 13 of word n+2) are OFF.
The Range 0 Tab Page is used to set a comparison range for the counter
value. The range has a lower limit (LL) and an upper limit (UL). The digital out-
put can be controlled according to the counter value in respect to this range.
Click the Range 0 Tab in the Edit Unit Parameters Window. The Range 0 Tab
Page will be displayed.
■ Operation
The output will be controlled according to the relationship between the
counter value and the range settings as follows:
• If UL > LL, the digital output will be ON when LL ≤ Counter value ≤ UL,
and will be OFF otherwise.
• If UL < LL, the digital output will be OFF when UL ≤ Counter value ≤ LL,
and will be ON otherwise.
• If UL = LL, the digital output will be ON when LL = Counter value = UL,
and will be OFF otherwise.
The following figures illustrate the first two cases.
Setting Default value
Preset value 0
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