Description
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 individually 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 inputs to help 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.
Features
- 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
Specifications
| CPU Module | |
|---|---|
| Watchdog Timer | Yes, Module (1.6 Seconds), Communication (Programmable) |
| Isolation | |
|---|---|
| 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 |
| 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, Source |
| 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 |
| Individual Channel Configuration | Yes |
| Max. Speed |
Isolated: 3.5 VDC ~ 10 VDC: 200 kHz 10 VDC ~ 30 VDC: 150 kHz Non-isolated: 1 MHz |
| Low Pass Filter | 1 ~ 32767 μs |
| Counter Value Retention | Yes |
| COM Ports | |
|---|---|
| Ports | 1 x RS-485 |
| Baud Rate | 1200 ~ 115200 bps |
| Data Format | N, 8, 1 |
| Protocol | DCON |
| Power | |
|---|---|
| Consumption | 0.6 W Max. |
| Mechanical | |
|---|---|
| Dimensions (mm) | |