H7CC-R11W datasheet(18/66 Pages) OMRON

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H7CC-A

Counter

Explanation of Functions

I/O Functions for Counter Operation

Input Mode (cntm)

Set increment mode (UP), decrement mode (DOWN), or one of the

increment/decrement modes (UP/DOWN A, UP/DOWN B, or UP/

DOWN C, UP/DOWN D, UP/DOWN E, or UP/DOWN F) as the input

mode.

(For details on the operation of the input modes, refer to Input Modes

and Present Value

on page 22.)

Dual Count Calculating Mode ( calm)

When using as a dual counter, select either ADD (addition) or SUB

(subtraction) as the calculation method for the dual count value.

ADD: Dual count value = CP1 PV + CP2 PV

SUB: Dual count value = CP1 PV

− CP2 PV

Output Mode (outm)

Set the way that control output for the present value is output. The

possible settings are N, F, C, R, K-1, P, Q, A, K-2, D, L, and H.

The output modes that can be set vary with the model.

(For details on the operation of the output modes, refer to Input/

Output Mode Settings

on page 24.)

One-shot Output Time (otim)

Set the one-shot output time (0.01 to 99.99 s) for control output.

One-shot output can be used only when C, R, K-1, P, Q, A, or K-2 is

selected as the output mode.

One-shot Output 2 Time (otm2)

Set the one-shot output time (0.01 to 99.99 s) for control output

(OUT2).

One-shot output can be used only when C, R, K-1, P, Q, A, or K-2 is

selected as the output mode.

One-shot Output 1 Time (otm1)

Set the one-shot output time (0.01 to 99.99 s) for control output

(OUT1).

One-shot output can be used only when the mode other than D, L,

and H is selected as the output mode.

If the output time is set to 0.00, hold is displayed, and outputs are

held.

Counting Speed (cnts)

Set the maximum counting speed (30 Hz/5 kHz) for CP1 and CP2

inputs together.

If contacts are used for input signals, set the counting speed to 30 Hz.

Processing to eliminate chattering is performed for this setting.

Reset Input Signal Width (iflt)

Set the reset input signal width (20 ms/1 ms) for reset/reset 1 and total

reset/reset 2 inputs together.

If contacts are used for the input signal, set the input signal width to

20 ms. Processing to eliminate chattering is performed for this setting.

Decimal Point Position (dp)

Decide the decimal point position for the present value, CP1/CP2

present values, set value (SV1, SV2), total count value, and dual

count set value.

Prescale Value (pscl)

Pulses input to the counter are converted according to the specified

prescale value.

(Setting range: 0.001 to 99.999)

Example: To display the feed distance for systems that output 25

pulses for a feed length of 0.5 m in the form

@@.@@ m:

1. Set the decimal point position to 2 decimal places.

2. Set the prescale value to 0.02 (0.5

÷ 25).

• Observe the following points when setting a prescale value.

Set the set value to a value less than {Maximum countable value

− Prescale value}.

Example: If the prescale value is 1.25 and the counting range is

0.000 to 999.999, set the set value to a value less than 998.749

(= 999.999

− 1.25).

If the set value is set to a value greater than this, output will not turn

ON.

• Output will turn ON, however, if a present value overflow occurs

(FFFFFF).

NPN/PNP Input Mode (imod)

Select either NPN input (no-voltage input) or PNP input (voltage

input) as the input format. When using a two-wire sensor, select NPN

input.

The same setting is used for all external inputs.

For details on input connections, refer to Input Connections on page

25 pulses

Encoder

0.5 m

Note: If the prescale value setting is incorrect, a counting error will

occur. Check that the settings are correct before using this

function.

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