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