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home > product> solutions > remote i/o modules/units > I-8K & I-87K > I-87084W
 
I-87084W
4-/8-channel Counter/Frequency/Encoder Module
 
~ NEW ~
Model: I-87084W
 
  • 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.
 
Counter Measurement, Frequency Measurement and Encoder Motion Control.
 
Communication
Interface RS-485
Format N, 8, 1
Baud Rate 1200 ~ 115200 bps
Protocol DCON
Dual Watchdog Yes, Module (1.6 Seconds), Communication (Programmable)
LED Indicators/Display
System LED Indicator 1 LED as Power/Communication Indicator
I/O LED Indicator 8 LEDs as Digital Input Indicators
Isolation
Intra-module Isolation, Field-to-Logic 2000 VDC
EMS Protection
ESD (IEC 61000-4-2) 4 kV Contact for Each Terminal
±8 kV Air for Random Point
Power
Power Consumption 0.6 W
Mechanical
Dimensions (W x L x H) 30 mm x 102 mm x 115 mm
Environment
Operating Temperature -25 ~ +75°C
Storage Temperature -40 ~ +85°C
Humidity 10 ~ 95% RH, Non-condensing
 
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
Contact Wet
Sink/Source (NPN/PNP) Sink
Types Counter, Frequency or Encoder
Counter/Encoder-bits 32-bit (4,294,967,295)
Isolated On Voltage Level +3.5 VDC ~ +30 VDC
Off Voltage Level +1 VDC Max.
Non-isolated On Voltage Level +2.4 VDC ~ +5 VDC
Off Voltage Level +0.8 VDC Max.
Programmable 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
Non-isolated 1 MHz
Frequency Accuracy 1 Hz~200 kHz = ±0.025% of Input Frequency (Note1)
200 kHz~1 MHz =±0.1% of Input Frequency
Virtual Battery Backup to
preserve Counter Values
Yes
 
Note1:
Frequency Range Frequency Error (typical)
1 Hz ~ 10 Hz 0.01 Hz
10 Hz ~ 10 KHz 0.5 Hz
10 KHz ~ 100 KHz 15 Hz
100 KHz ~ 200 KHz 30 Hz
 
I-87084W-G CR 4-/8-channel Counter/Frequency/Encoder Module (Gray Cover) (RoHS)
 
SG-770 CR 7-channel Differential or 14-channel Single-ended Surge Protector (RoHS)
 
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