18
H7CX-A@-N
Counter
Explanation of Functions
Items marked with stars ★ can be set using the DIP switch.
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) as the input mode.
Input modes other than UP or DOWN modes cannot be set using the
DIP switch and so use the operation keys if other modes are required.
(For details on the operation of the input modes, refer to Input Modes
and Present Value on page page 21.)
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.
Output modes other than N, F, C, or K-1 cannot be set using the DIP
switch and so use the operation keys if other modes are required. 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 page 22.)
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. Output times other than 0.5 s or 0.05 s
cannot be set with the DIP switch and so use the operation keys if
other settings are required.
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. Output times other than 0.5 s or 0.05 s
cannot be set with the DIP switch and so use the operation keys if
other settings are required.
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 D, L, or 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 for 6-digit models and 0.001 to 9.999
for 4-digit models.)
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 or FFFF).
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
page 9.
Display Color (colr) (Displayed for terminal block models
(except H7CX-A11@) only.)
Set the color used for the present value.
* Output 2 for 2-stage models.
With the twin counter, output 1 and output 2 will both turn OFF when
the output status is OFF. Either output 1 or output 2 will turn ON when
the output status is ON.
Output OFF* Output ON*
red
Red (fixed)
grn
Green (fixed)
org
Orange (fixed)
r-g
Red Green
g-r
Green Red
r-o
Red Orange
o-r
Orange Red
g-o
Green Orange
o-g
Orange Green
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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