Using Counters (C) And The 8-Digit Counter (F); Settings In The Ladder Program Edit Screen - Omron ZEN Operation Manual

Using Counters (C) and the 8-Digit Counter (F)

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.
Set value
Present value
Counter bit
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.
Count input
Counter direction
specification input
Reset input
Counter address
78
I1 (DIR)
I0 (CNT)
I3 (RES)
0
Counter bit
Counter address Counter C0 to Cf (16 points)
8-Digit Counter F0 (1 point)
Counter input C (CNT) Increments (or decrements) each time the
Counter D (DIR)
direction
specification
input
Count input specification
Counter address
Output to counter input
Counter direction specification output
Counter direction specification
Counter reset output
Reset specification
Counter bit output
count input turns ON.
Switches between incremental and
decremental counting.
OFF: Incremental
ON: Decremental
Section 3-7