I-87084W-G CR: Module 4/8 kênh đầu vào bộ đếm/tần số (Counter/Frequency/Encoder)

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I-87084W-G CR 4/8-ch Counter/Frequency/Encoder Input Module (RoHS)

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I-87084W-G CR: Module 4/8 kênh đầu vào bộ đếm/tần số (Counter/Frequency/Encoder)


• 8 Up Counter/Frequency Channels or 4 Encoder Input Channels
• Programmable Digital Filter
• Isolated or Non-isolated Input
• 32-bit Counter
• Individual Channel Configuration
• Virtual Battery Backup to Preserve Counter Values
• Maximum Frequency of up to 1 MHz
• +/-4 kV ESD Protection
• Preset Values for Counter Input
• RoHS Compliant
• Wide Operating Temperature Range: -25 ~ +75°C


The I-87084W-G 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 is valid for both non-isolated and isolated and can filter out noise where the high/ low pulse width is smaller than the minimum high/low width of the digital filter. The I-87084W-G provides a virtual battery backup function in counter mode, and isolated or non-isolated mode is jumper-selectable.


CPU Module
Watchdog Timer Yes, Module (1.6 Seconds), Communication (Programmable)


Intra-module Isolation 2000 VDC


EMS Protection
ESD (IEC 61000-4-2) ± 4 kV Contact for Each Terminal
±8 kV Air for Random Point


LED Indicators
Status 1 x Power and Communication
8 x I/O


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
Sink/Source (NPN/PNP) Sink, Source
Counter/Encoder Bits 32-bit (4,294,967,295)
ON Voltage Level Isolated: +3.5 VDC ~ +30 VDC
Non-isolated: +2.4 VDC ~ +5 VDC
OFF Voltage Level Isolated: +1 VDC Max.
Non-isolated: +0.8 VDC Max.
Frequency Accuracy 1 Hz~200 kHz = ±0.025% of Input Frequency (Note1)
200 kHz~1 MHz =±0.1% of Input Frequency
Digital Filter 1 ~ 32767 μs
Individual Channel Configuration Yes
Counter Mode Up or Up/Down
Encoder Mode CW/CCW, Dir/Pulse, AB Phase
Frequency Mode Yes
Max. Speed, Isolated 3.5 VDC ~ 10 VDC: 200 kHz
10 VDC ~ 30 VDC: 150 kHz
Max. Speed, Non-isolated Non-isolated: 1 MHz
Counter Value Retain Yes


COM Ports
Ports 1 x RS-485
Baud Rate 1200 ~ 115200 bps
Data Format N, 8, 1
Protocol DCON


Consumption 0.6 W Max.


Dimensions (mm) 30 x 102 x 115 (W x L x H)


Operating Temperature -25 ~ +75 °C
Storage Temperature -40 ~ +85 °C
Humidity 10 ~ 95% RH, Non-condensing


Data sheet


Ordering information

I-87084W-G     CR  4/8-ch Counter/Frequency/Encoder Input Module (RoHS)

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