Model: I-8084W
4/8-channel Counter/Frequency/Encoder Module


I-8084W-G is a 32 bits (hardware) high speed Counter/Frequency/Encoder I/O with ¡§Up Counter¡¨¡B"Frequency¡¨¡B ¡§Up/Down Counter¡¨¡B ¡§Dir/Pulse Counter¡¨ and ¡§A/B Phase Counter¡¨ mode.

I-8084W-G can has variety mode combination for all 8 channels. That means it can use some channels as ¡§Up Counter¡¨ and others as ¡§Frequency¡¨ or ¡§A/B Phase¡¨.
  • Support 8 Up Counter (Minimum Pulse Width=2 £gs).
  • Support 8 Frequency (Minimum Pulse Width=2 £gs).
  • Support 4 Up/Down Counter (Minimum Pulse Width=2 £gs).
  • Support 4 Dir/Pulse Counter (Minimum Pulse Width=2 £gs).
  • Support 4 A/B Phase Counter (Minimum Pulse Width=2 £gs).
  • Support 1~32767 (us) digital filter.
  • Support isolated and non-isolated input signals.
  • Equip with Power and Input signal LED indicators.
Counter measurement, Frequency measurement and Encoder motion control.
Digital Input
Mode Counter & Frequency 4-ch Up/Down Counter (CW/CCW)
4-ch Dir/Pulse Counter (Bi-direction)
4-ch A/B Phase (Quadrant Counting)
8-ch Up Counter
8-ch Frequency
Digital Noise Filter 1 ~ 32767 £gs
Isolated Input Level On Voltage Level +4.5 VDC ~ +30 VDC
Off Voltage Level +1 VDC Max.
TTL Input Level On Voltage Level +2 VDC ~ +5 VDC
Off Voltage Level 0 VDC ~ +0.8 VDC
Minimum Pulse Width
2 £gs
Input Frequency 1 Hz ~ (typically) 250 kHz (both counter mode and frequency mode)
(where 250 kHz is calculated as followings:
supposed that duty cycle = 50%, refer to Minimum Pulse Duration of High Level, we have pulse period = 2 £gs x 2 = 4 £gs, which is 250 kHz as a maximum)
Maximum Frequency :
refer to Minimum Pulse Duration of High Level, maximum frequency is highly affected by duty cycle
Frequency Accuracy = ¡Ó 0.4 %
Isolated Voltage 1000 Vrms
ESD Protection 2 kV (Contact for each channel)
LED Display
1 LED as Power Indicator
8 LEDs as Digital Input Indicators
Power Consumption 1 W
Operating Temperature -25 ~ 75¢XC
Storage Temperature -30 ~ 85¢XC
Humidity 5 ~ 95¢H RH, Non-condensing
30mm x 102mm x 115mm (W x L x H) Detail
I-8084W-G CR    4/8-channel Counter/Frequency/Encoder Module (Gray Cover) (RoHS)
Converters    USB, RS-232, Fiber Optical to RS-485 Converters and Repeaters
Power Supply    24V DC power supply
Relay Module    External relay modules for I-7000 DO module
Learning Kit    Beginner learning kit
Application Books    Application books designed with our products
Data Logger Software    User friendly data logger software (free)
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