Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 - Manual (Page 75)

Timers and Counters
Chapter 8
8Ć8
When the rung condition becomes:
True
Accumulated value of the specified counter is reset to 000.
Status bits (14,15,16,17) are reset.
False
No action is taken.
Keystrokes: You enter an Up Counter, Down Counter or Counter Reset
instruction by performing the following steps.
1. Press -(CTU)-, -(CTD)-, or -(CTR)-.
2. Enter <address>.
Important: Do not perform steps 3 and 4 for a Counter Reset instruction.
3. Enter <preset value>.
4. Enter <accumulated value>.
Editing in a Completed Rung
You edit an Up Counter, a Down Counter, or a Counter Reset instruction by
performing the following steps.
1. Position the cursor over the Up Counter, Down Counter or Counter Reset
you want to change.
2. Press either -(CTU)-, -(CTD)-, -(CTR)-, or any other appropriate
instruction type.
3. Enter <address>.
4. Enter <preset value> if appropriate.
Important: Do not perform steps 4 and 5 for a Counter Reset instruction.
5. Enter <accumulated value>.
We showed you how to use timer and counter instructions to keep track of timed
intervals and counted events. The next chapter shows you how to transfer and
compare data.
Chapter Summary