ET-7284_DESCRIPTION.html
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.
ET-7284.html
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Built-In Web Server
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Yes
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Web HMI
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Yes
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I/O Pair Connection
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Yes
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Ethernet Port
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2 x RJ-45, 10/100 Base-TX, Swtich Ports
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PoE
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-
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Protocol
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Modbus TCP, Modbus UDP
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Security
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ID, Password and IP Filter
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Dual Watchdog
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Yes, Module (0.8 seconds), Communication (Programmable)
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for System Running
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Yes
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for Ethernet Link/Act
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Yes
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for DI/DO status
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Yes
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for PoE Power
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-
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Ethernet
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1500 VDC
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I/O
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2500 VDC
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ESD (IEC 61000-4-2)
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±4 kV Contact for Each Terminal and ±8 kV Air for Random Point
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EFT (IEC 61000-4-4)
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±4 kV for Power Line
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Surge (IEC 61000-4-5)
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±2 kV for Power Line
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Reverse Polarity Protection
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Yes
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Powered from Terminal Block
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12 ~ 48 VDC
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Powered from PoE
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-
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Consumption
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4.2 W
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Dimensions (L x W x H)
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120 mm x 76 mm x 38 mm
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Installation
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DIN-Rail or Wall mounting
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Operating Temperature
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-25 to +75C
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Storage Temperature
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-30 to +80C
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Humidity
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10 to 90% RH, Non-condensing
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I/O Specifications
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Counter/Frequency/Encoder Input
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Counter/Frequency/Encoder Input
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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
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Contact
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Wet
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Sink/Source (NPN/PNP)
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Sink
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Types
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Counter, Frequency or Encoder
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Counter/Encoder bits
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32-bit (4,294,967,295)
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On Voltage Level
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+3.5 VDC ~ +30 VDC
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Off Voltage Level
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+1 VDC Max.
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Programmable Low Pass Filter
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1 ~ 32767 ?s
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Individual Channel Configuration
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Yes
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Max. Speed
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3.5 VDC ~ 10 VDC: 200 kHz
10 VDC ~ 30 VDC: 150 kHz
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Frequency Accuracy
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1 Hz ~ 200 kHz: ±0.025% of Input Frequency (Note1)
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Count Value Retention
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Yes
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Channels
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4
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Type
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Isolated Open Collector
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Sink/Source (NPN/PNP)
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Sink
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Max. Load Current
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650 mA/channel
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Load Voltage
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+5 VDC ~ +50 VDC
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Overvoltage Protection
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60 VDC
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Overload Protection
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1.4 A
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Short-circuit Protection
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Yes
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Power-on Value
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Yes, Programmable
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Safe Value
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Yes, Programmable
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