Chapter 8 Built-in High-speed Counter Function
8-8
▪ Range of Ring counter: user defined min. value ~ user defined max. value
▪ Counter display: in case of using ring counter, user defined max. value is not displayed.
1) During increasing count
■ Even if count value exceeds user-defined maximum value during increasing count, Carry only
occurs and count does not stop differently to Linear Count.
2) During decreasing count
■ Even if count value exceeds user-defined minimum value during decreasing count, Borrow
only occurs and count does not stop differently to Linear Count.
3) Operation when setting Ring Count based on present count value (during increasing count)
■ When setting the ring count, the current count value is below the minimum value of the ring counter.
- Opens an error (Code No. 27), operates as a linear counter, and operates as a ring count when the
current count value falls within the range of the ring count (error codes are not cleared).
■ When setting the ring count, the current count value is above the maximum value of the ring
counter.
- Displays an error (Code No. 27), operates as a linear counter, and stops counting when the current
count value reaches the maximum count value (error code is not cleared).
■ When setting the ring count, the current count value is within the user setting range
- It starts to increase from the current count value, increases to the maximum value set by the user,
then becomes the minimum value set by the user and continues to count after carrying a carry.
Minimum value (0)
:
:
Included
:
Included
maximum
minimum
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