4/8-ch Counter/Frequency/Encoder Input Module
The M-7084 is a 32-bit high-speed Counter/Frequency/Encoder input module that offers a variety of mode options, including "Up Counter”, "Frequency Input", "Up/Down Counter", "Direct/Pulse Counter" and "A/B Phase Counter" modes. The mode combinations can be individually set for all 8 channels, where some channels can be set to “Up Counter” mode and other channels can be simultaneously set to “Frequency Input”, "Up/ Down Counter" or “Encoder input” mode. The built-in digital filter can filter out noise where the high/ low pulse width is smaller than the minimum high/low width of the digital filter. The M-7084 provides a virtual battery backup function in counter mode.
| Model | Counter / Frequency | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| DCON | DCON, Modbus/RTU | Channel | Counter Mode | Encoder Mode | Counter / Encoder Bits | ON Voltage Level | Max. Speed | Frequency Accuracy | Virtual Battery Backup |
| I-7080-G | M-7080D-G | 2 | Up | - | 32-bit |
Isolated: +3.5 ~ +30 VDC Non-isolated: +2.4 ~ +5 VDC |
100 kHz | 1 Hz or 10 Hz | - |
| I-7080BD-G | M-7080BD-G | Yes | |||||||
| - | M-7084-G | 4 / 8 | Up or Up / Down | CW/CCW, Dir/Pulse, AB Phase | +3.5 ~ +30 VDC |
+3.5 ~ +10 VDC: 200 kHz +10 ~ +30 VDC: 50 kHz |
1 Hz ~ 200 kHz (±0.025% of Input Frequency) |
Yes | |
| CPU Module | |
|---|---|
| Watchdog Timer | Module, Communication (Programmable) |
| Memory | |
|---|---|
| Battery Backup | Yes |
| Isolation | |
|---|---|
| Intra-module Isolation | 3000 VDC |
| EMS Protection | |
|---|---|
| EFT (IEC 61000-4-4) | ±4 kV for Power Line |
| ESD (IEC 61000-4-2) | ±4 kV Contact for Each Terminal |
| Surge (IEC 61000-4-5) | ±3 kV for Power Line |
| LED Indicators | |
|---|---|
| Status | 1 x Power and Communication |
| Counter / Frequency / Encoder Input | |
|---|---|
| Channels |
4-channel Up/Down Counter (CW/CCW) 4-channel Dir/Pulse Counter (Bi-direction) 4-channel A/B Phase (Quadrature Counting) 8-channel Up Counter 8-channel Frequency |
| Type | Counter, Frequency, or Encoder |
| Counter Mode | Up or Up/Down |
| Encoder Mode | CW/CCW, Dir/Pulse, AB Phase |
| Frequency Mode | Yes |
| Counter / Encoder Bits | 32-bit |
| Sink / Source (NPN / PNP) | Sink |
| ON Voltage Level | +3.5 VDC ~ +30 VDC |
| OFF Voltage Level | +1 VDC max. |
| Frequency Accuracy | 1 Hz ~ 200 kHz = ±0.025% of Input Frequency (*Note1) |
| Individual Channel Configuration | Yes |
| Max. Speed |
+3.5 ~ +10 VDC: 200 kHz +10 ~ +30 VDC: 150 kHz |
| Low Pass Filter | 1 ~ 32767 μs |
| COM Ports | |
|---|---|
| Ports | 1 x RS-485 |
| Baud Rate | 1200 ~ 115200 bps |
| Data Format | (N, 8, 1), (N, 8, 2), (E, 8, 1), or (O, 8, 1) |
| Protocol | Modbus RTU, DCON |
| Mechanical | |
|---|---|
| Dimensions (mm) | 72 x 123 x 35 (W x L x H) |
| Installation | DIN-Rail Mounting |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +80 °C |
| Humidity | 10 ~ 90% RH, Non-condensing |