Allen-Bradley POINT I/O 1734-VHSC24, User Manual, Page: 20 / 64

Publication 1734-UM003A-EN-P - August 2000
1-12 About the Very High Speed Counter Modules
Store Count Mode 4: Store-Reset/Start
In mode 4, the rising edge of a pulse input on the Z Gate/Reset
terminal will store the current counter value in the Stored/
Accumulated Count word and reset the counter to zero. The counter
will continue counting while the Z Gate/Reset terminal is high. The
stored count information will remain until it is overwritten with new
data.
Store-Reset/Start
Output Control
To connect an output to a compare window, the user could program
the module accordingly:
•
Tie Output 0 to Window 0
•
Program Window 0 ON Value to 2000
•
Program Window 0 OFF Value to 5000
ON-OFF Operation of Output 0
If the OFF value is greater than the ON value, the output turns ON at
2000 and OFF at 5000. If the ON value is greater than the OFF value,
the output turns OFF at 2000 and ON at 5000.
and Reset to zero
Start Counting
Continue Counting
Store Count,
Output turns ON at count value of 2000
Output turns OFF at count value of 5000
Output remains energized for 3000 additional counts