Allen-Bradley POINT I/O 1734-VHSC24, User Manual, Page: 19 / 64

Publication 1734-UM003A-EN-P - August 2000
About the Very High Speed Counter Modules 1-11
Store Count Mode 2: Store/Wait/Resume
In mode 2, the rising edge of a pulse input on the Z Gate/Reset
terminal will read and store the current counter value in the Stored/
Accumulated Count word and inhibit counting while the Z Gate/Reset
terminal is high. Counting resumes on the falling edge of the pulse at
the Z Gate/Reset terminal. The stored count information will remain
until it is overwritten with new data.
Store/Wait/Resume
Store Count Mode 3: Store-Reset/Wait/Start
In mode 3, the rising edge of a pulse input on the Z Gate/Reset
terminal will stop counting, read and store the current counter value
in the Stored/Accumulated Count word, and reset the counter to zero.
The counter does not count while the input pulse on the Z Gate/Reset
terminal is high. Counting resumes from zero on the falling edge of
the pulse at the Gate/Reset terminal. The stored count information
will remain until it is overwritten with new data.
Store-Reset/Wait/Start
Store Count Resume Counting
Stop Counting
and Reset to zero from zero
Counter has stopped Counting
Start Counting Stop Count, Store,