Omron ZEN - Using Counters (C) and the 8-Digit Counter (F); Settings in the Ladder Program Edit Screen

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Using Counters (C) and the 8-Digit Counter (F) Section 3-7
3-7 Using Counters (C) and the 8-Digit Counter (F)
Up to 16 counters and one 8-digit counter can be used in incremental or
decremental mode. The present value for counters and the status of
counter bits (ON/OFF) are held even when the operating mode is
changed or there is a power interruption.
Operation
Counter bits turn ON when the count value (present value) exceeds the
setting (present value ≥ set value). The count returns to 0 and the bits
turns OFF when the reset input turns ON. Count inputs are not accepted
while the reset input is ON.
3-7-1 Settings in the Ladder Program Edit Screen
Outputs for the counter input, counter direction, and counter reset are
written in the Ladder Program Edit Screen. Counter input conditions can
also be written. Settings are made in the Parameter Settings Screen.
Counter address Counter C0 to Cf (16 points)
8-Digit Counter F0 (1 point)
Counter input C (CNT) Increments (or decrements) each time the
count input turns ON.
Counter
direction
specification
input
D (DIR) Switches between incremental and
decremental counting.
OFF: Incremental
ON: Decremental
I1 (DIR)
I0 (CNT)
I3 (RES)
0
Set value
Counter bit
Present value
Counter address
Count input specification
Count input
Counter direction
specification input
Reset input
Reset specification
Counter address
Counter bit
Output to counter input
Counter direction specification output
Counter direction specification
Counter reset output
Counter bit output
Z211-E1-03.book Page 78 Friday, November 21, 2008 10:38 AM