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9. Appendix
9.1. Terminology
R200
2MLF-HO2A, 2MLF-HD2A High Speed Counter Module User's Guide
209
May 2010
Honeywell
Ring Counter
Counter value increases or decreases between the maximum value and the minimum
value of the Ring count that has defined.
Figure 150 – Ring Counter
1-Phase Operation Mode
Mode used to count 1-phase input pulse.
CW/CCW Operation Mode
Mode used to count direction of the pulse.
CW/CCW Operation Mode
Mode used to count 2-phase input pulse.
Preset
Mode used to set present counter value to discretionary value.
Gate
Signal used to enable additional function operation.
Compared Value
Basic value used for comparing counter value in size.
Carry
Signal generated when Linear count changes from 2,147,483,646 to 2,147,483,647 and
when Ring count changes from the maximum value to the minimum value during
increasing count operation.