ICPDAS I-87084W
4/8-channel Counter/Frequency/Encoder Module
● Support 8 Up Counter
● Support 8 Frequency
● Support 4 Up/Down
● Support 4 Dir/Pulse Counter
● Support 4 A/B Phase Counter
● Support 1 ~ 32767 (us) digital filter
● Support isolated and non-isolated input signals
● Equip with Power and Input signal LED indicators
ICPDAS Counter/Frequency Module I-87084W is a 32 bits hardware high speed Counter/Frequency/Encoder Input Module with "Up Counter", "Frequency", "Up/Down Counter", "Dir/Pulse Counter" and "A/B Phase Counter" mode.
ICPDAS Counter/Frequency Module I-87084W 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".
With different communication interface, the I/O modules can be classified to high communication speed (Parallel bus) 8K series modules and low communication speed (serial interface) 87K series modules.
| There are two types of I/O modules, Parallel and Serial. The parallel modules (I-8 Series) are high-speed modules and support MCU (Main Control Unit) only. | |
| Item | I-87K Series | 
| Communication Interface | Serial Bus | 
| Protocol | DCON | 
| Communication Speed | Slow | 
| DI with Latched Function | Y | 
| DI with Counter Input | Y (100 Hz) | 
| Power On Value | Y | 
| Safe Value | Y | 
| Programmable Slew-rate for AO Module | Y | 
High Profile VS Low Profile
With different form factor, I/O modules can be classified to high profile and low profile. Basically, high profile and low profile modules that with same item number also have same I/O channel number.
For example: I-8054 and I-8054W both has 8 DI and 8 DO.
Except I/O channel number, other specifications could be different. You have to double check whether the specifications suit your application.
For example: For I-8054W, its DI logic high level is +10 ~ +50V. But for I-8054, it is +3.5 ~ +30V

| I-87K Series | ||
| High Profile | Low Profile | |
| XPAC | Y | - | 
| WinPAC | Y | - | 
| LinPAC | Y | - | 
| iPAC | Y | - | 
| ViewPAC | Y | - | 
| RU-87P1/2/4/8 | Y | - | 
| USB-87P1/2/4/8 | Y | - | 
| WinCon | Y | Y | 
| LinCon | Y | Y | 
| I-8000 | Y | Y | 
| I-8KE4/8 | Y | Y | 
| I-8KE4/8-MTCP | Y | Y | 
| I-87K4/5/8/9 | Y | Y | 
APPLICATIONS
● Counter Measurement
● Frequency Measurement
● Encoder Motion Control
| Model | 
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| Isolated Input Level | 
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| TTL Input Level | 
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| Input Frequency | 
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| Isolated Voltage | 2000 VDC | ||||||||
| ESD Protection | 4 kV (Contact for each channel) | 
| 1 LED | Power Indicator | 
| 8 LEDs | Digital Input Indicators | 
| Power Consumption | 0.6 W | 
| Dimensions (w x l x h) | 30 x 102 x 115 mm | 
| Operating Temperature | -25 °C ~ +75 °C | 
| Storage Temperature | -30 °C ~ +75 °C | 
| Humidity | 5 ~ 95% RH, non-condensing | 




