
M-7084-G CR
4/8-ch Counter/Frequency/Encoder Input Module using DCON and Modbus Protocols (Gray Cover)
Features
- 8 Up Counter/Frequency Channels or 4 Encoder Input Channels
- Programmable Digital Filter
- 32-bit Counter
- Individual Channel Configuration
- Virtual Battery Backup to Preserve Counter Values
- +/-4 kV ESD Protection
- Preset Values for Counter Input
Introduction
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 individual set for all 8 channels, where some channels can be set to “Up Counter” mode and other channels can be simultaneously set to “Frequency”, "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.
Applications
Counter Measurement
Frequency Measurement and Encoder Motion Control
Specifications
CPU Module
Watchdog Timer: Yes, Module (1.6 Seconds), 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 (4,294,967,295)
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 VDC ~ 10 VDC: 200 kHz
10 VDC ~ 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) (O, 8, 1)
Protocol: Modbus RTU, DCON
Power
Reverse Polarity Protection: Yes
Input Range: +10 ~ +30 VDC
Consumption: 1.32 W Max.
Mechanical
Dimensions (mm): 123 x 72 x 35 (W x L x H)
Installation: DIN-Rail
Environment
Operating Temperature: -25 ~ +75 °C
Storage Temperature: -30 ~ +80 °C
Humidity: 10 ~ 90% RH, Non-condensing

