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The ET-7284/PET-7284 is a 32-bit high-speed Counter/Frequency/Encoder input and 4-channel Digital Output module that offers a variety of input mode options, including "Up Counter”, "Frequency Input", "Up/Down Counter", "Direct/Pulse Counter" and "A/B Phase Counter". The mode can be individually configured for all 8 channels, where, for example, some channels can be set to “Up Counter” mode, and other channels can be individually set to “Frequency”, "Up/ Down Counter" or “Encoder input” mode. The built-in programmable low pass filter can be used to eliminate noise where the width of the high/low pulse is narrower than the minimum high/low width of the low pass filter.
The ET-7284/PET-7284 module is equipped with FRAM memory to retain the counter values. FRAM is a type of non-volatile memory that can be used to store written data, even after the module has been powered off. This storage feature can be either enabled or disabled, and the data can be retained for up to 10 years.
| Software | |
|---|---|
| Built-in Web Server | Yes |
| CPU Module | |
|---|---|
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
|---|---|
| 2-way Isolation | I/O: 2500 VDC |
| EMS Protection | |
|---|---|
| EFT (IEC 61000-4-4) | ±4 kV for Power Line |
| ESD (IEC 61000-4-2) |
±4 kV Contact for Each Terminal ±8 kV Air for Random Point |
| Surge (IEC 61000-4-5) | ±2 kV for Power Line |
| LED Indicators | |
|---|---|
| Status | Run, Ethernet, I/O, PoE |
| Digital Output | |
|---|---|
| Channels | 4 |
| Type | Isolated Open Collector |
| Sink/Source (NPN/PNP) | Sink |
| Load Voltage | +5 to +50 VDC |
| Load Current | 650 mA/channel |
| Overvoltage Protection | +60 VDC |
| Overload Protection | 1.4 A |
| Short-circuit Protection | Yes |
| Power on Value | Programmable |
| Safe Value | Programmable |
| Counter/Frequency/Encoder Input | |
|---|---|
| Channels |
4-channel Up/Down Counter (CW/CCW) 4-channel Dir/Pulse Counter (Bi-directional) 4-channel A/B Phase (Quadrant Counting) 8-channel Up Counter 8-channel Frequency |
| Type | Counter, Frequency or Encoder |
| Bits | 32-bit |
| ON Voltage Level | +3.5 to +30 VDC |
| OFF Voltage Level | +1 VDC (max.) |
| Frequency Accuracy | 1 Hz to 200 kHz: ±0.025% of Input Frequency |
| Individual Channel Configuration | Yes |
| Max. Speed |
+3.5 to +10 VDC: 200 kHz +10 to +30 VDC: 150 kHz |
| Low Pass Filter | 1 to 32767 μs |
| Counter Value Retention | Yes |
| Ethernet | |
|---|---|
| Ports | 2 x RJ-45, 10/100 Base-TX, Swtich Ports |
| PoE | Yes |
| LAN bypass | Yes |
| Access Control | ID, Password and IP Filter |
| Protocol | Modbus TCP, Modbus UDP |
| Power | |
|---|---|
| Reverse Polarity Protection | Yes |
| Consumption | 4.4 W (max.) |
| Powered from PoE | IEEE 802.3af, Class1 |
| Powered from Terminal Block | +12 to +48 VDC |
| Mechanical | |
|---|---|
| Dimensions (mm) | 76 x 120 x 38 (W x L x H) |
| Installation | DIN-Rail mounting |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +80 °C |
| Humidity | 10 to 90% RH, Non-condensing |
The ET-7284/PET-7284 is a 32-bit high-speed Counter/Frequency/Encoder input and 4-channel Digital Output module that offers a variety of input mode options, including "Up Counter”, "Frequency Input", "Up/Down Counter", "Direct/Pulse Counter" and "A/B Phase Counter". The mode can be individually configured for all 8 channels, where, for example, some channels can be set to “Up Counter” mode, and other channels can be individually set to “Frequency”, "Up/ Down Counter" or “Encoder input” mode. The built-in programmable low pass filter can be used to eliminate noise where the width of the high/low pulse is narrower than the minimum high/low width of the low pass filter.
The ET-7284/PET-7284 module is equipped with FRAM memory to retain the counter values. FRAM is a type of non-volatile memory that can be used to store written data, even after the module has been powered off. This storage feature can be either enabled or disabled, and the data can be retained for up to 10 years.
| Software | |
|---|---|
| Built-in Web Server | Yes |
| CPU Module | |
|---|---|
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
|---|---|
| 2-way Isolation | I/O: 2500 VDC |
| EMS Protection | |
|---|---|
| EFT (IEC 61000-4-4) | ±4 kV for Power Line |
| ESD (IEC 61000-4-2) |
±4 kV Contact for Each Terminal ±8 kV Air for Random Point |
| Surge (IEC 61000-4-5) | ±2 kV for Power Line |
| LED Indicators | |
|---|---|
| Status | Run, Ethernet, I/O, PoE |
| Digital Output | |
|---|---|
| Channels | 4 |
| Type | Isolated Open Collector |
| Sink/Source (NPN/PNP) | Sink |
| Load Voltage | +5 to +50 VDC |
| Load Current | 650 mA/channel |
| Overvoltage Protection | +60 VDC |
| Overload Protection | 1.4 A |
| Short-circuit Protection | Yes |
| Power on Value | Programmable |
| Safe Value | Programmable |
| Counter/Frequency/Encoder Input | |
|---|---|
| Channels |
4-channel Up/Down Counter (CW/CCW) 4-channel Dir/Pulse Counter (Bi-directional) 4-channel A/B Phase (Quadrant Counting) 8-channel Up Counter 8-channel Frequency |
| Type | Counter, Frequency or Encoder |
| Bits | 32-bit |
| ON Voltage Level | +3.5 to +30 VDC |
| OFF Voltage Level | +1 VDC (max.) |
| Frequency Accuracy | 1 Hz to 200 kHz: ±0.025% of Input Frequency |
| Individual Channel Configuration | Yes |
| Max. Speed |
+3.5 to +10 VDC: 200 kHz +10 to +30 VDC: 150 kHz |
| Low Pass Filter | 1 to 32767 μs |
| Counter Value Retention | Yes |
| Ethernet | |
|---|---|
| Ports | 2 x RJ-45, 10/100 Base-TX, Swtich Ports |
| PoE | Yes |
| LAN bypass | Yes |
| Access Control | ID, Password and IP Filter |
| Protocol | Modbus TCP, Modbus UDP |
| Power | |
|---|---|
| Reverse Polarity Protection | Yes |
| Consumption | 4.4 W (max.) |
| Powered from PoE | IEEE 802.3af, Class1 |
| Powered from Terminal Block | +12 to +48 VDC |
| Mechanical | |
|---|---|
| Dimensions (mm) | 76 x 120 x 38 (W x L x H) |
| Installation | DIN-Rail mounting |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +80 °C |
| Humidity | 10 to 90% RH, Non-condensing |
