OMRON provides Preset Counters, Totalizing Counters, Time Counters and Electromagnetic Counters.
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Features |
Principles |
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Engineering Data | Further Information |
Counter Glossary
Electronic Counter
A counter which mainly consists of transistors, ICs, micro-computers,etc.
Electromagnetic Counter
A counter which performs counting by energizing or de-energizing the built-in electromagnet.
Preset Counter
A counter whose control output operates when it counts up to a set value.
Totalizing Counter
A counter which indicates the total value of the counting inputs and is not provided with a control output.
Addition (Up/Incrementing) Counter
Subtraction (Down/Decrementing) Counter
A counter with a subtract input and thus capable of counting in descending order.
Up/Down Counter
A counter with the capability of counting in an ascending or descending order, depending on the up-down inputs. Also called a reversible counter.
Maximum Counting Speed
The maximum counting speed at which the display or output section of the counter operates accurately without miscounting. The maximum counting speed is expressed in units of counts per second (cps).
ON/OFF Ratio
The ratio of the ON signal time of a given input signal to the OFF signal time of the same input signal. The maximum counting speed of each counter is determined by a counting input signal with an ONOFF ratio of 1:1.
Operating Mode
Control output patterns or display patterns that appear when counted up to the value set by the preset counter.
Examples:
N Mode
C Mode
Note:Refer to the description of each product for information on operation in other modes.
Stage
Number of preset values that correspond with the number of control outputs.
Example: Two-stage Counter
Number of Digits
The maximum number of countable digits.
Display Method
The type of element used to display the counting results.
LED: Light emitting diode
LCD: Liquid crystal display
Note:Electromagnetic counters display results using a revolving mechanism with printed characters.
Externally Supplied Power
Power supplied from the counter to sensors that are used for counting or resetting. (Also called sensor power.)
Reset
To restore the counting, display and output sections of the counter, to their initial states.
Power Reset
To reset the counter by cutting off the operating supply voltage.
External Reset
To reset the counter by applying a specific signal to the reset input signal terminal.
Auto Reset
To reset the counter automatically with a signal generated from inside the counter.
Self-reset
To reset the counter by a signal generated by internal circuitry.
Manual Reset
To mechanically reset the counter by manual means.
Electromagnetic Reset
To electromagnetically reset the counter by applying a reset signal.
Counting Function
Refer to the following timing charts for the input modes of incremental, decrementing, and up/down (or reversible) Counters.
(These charts focus on the up/down input mode.).
Up/Down A Command Input
Up/Down B Command Input
Up/Down C Quadrature Input
Up/Down D Command Input
Up/Down E Individual Input
Up/Down F Quadrature Input
Reference Material for Counters: Inrush Current
"---" indicates a constant current and therefore the corresponding values are omitted from the table. All the values are approximate values and should therefore only be used as a guide.
Model | Voltage | Applied voltage | Inrush current (peak value) | Time (see note) |
H7AN series | 100 to 240 VAC | 264 VAC | 23 A | 1 ms |
12 to 24 VDC | 26.4 VDC | 15 A | 4 ms | |
H7BX series | 100 to 240 VAC | 264 VAC | 7.6 A | 2 ms |
24 VAC/12 to 24 VDC | 26.4 VAC | 13.5 A | 2 ms | |
H7CN series | 100 to 240 VAC | 264 VAC | 800 mA | 1 ms |
12 to 48 VDC | 52.8 VDC | 400 mA | 1 ms | |
H7E series | --- | --- | --- | --- |
H7CX-A[]-N series | 100 to 240 VAC | 264 VAC | 4.9 A | 0.9 ms |
24AC/12 to 24 VDC | 26.4 VAC | 9.3 A | 1.4 ms | |
26.4 VDC | 6.2 A | 1.7 ms | ||
H7CX-A[]D-N series | 24AC/12 to 24 VDC | 26.4 VAC | 9.2 A | 1 ms |
26.4 VDC | 6.3 A | 1 ms | ||
H7CX-A series (previous models) | 100 to 240 VAC | 264 VAC | 5.8 A | 0.7 ms |
24 VAC/12 to 24 VDC | 26.4 VAC | 10.4 A | 1.2 ms | |
12 to 24 VDC | 26.4 VDC | 6 A | 1.2 ms | |
H7CX-R series (previous models) | 100 to 240 VAC | 264 VAC | 5.8 A | 0.7 ms |
24 VAC/12 to 24 VDC | 26.4 VAC | 10.4 A | 1.2 ms | |
H7CZ series | 100 to 240 VAC | 264 VAC | 4.6 A | 0.4 ms |
AC24/12 to 24 VDC | 26.4 VAC | 9.2 A | 1 ms | |
26.4 VDC | 6.3 A | 1 ms | ||
H8BM-R series | 24 VDC | 26.4 VDC | 1.6 A | 12 ms |
Note:The time of the inrush current is measured as shown in the following figure.