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ET-87P4/ET-87P8
I/O Expansion Unit
 
 
   
Model: ET-87P4 Model: ET-87P8
 
ET-87Pn series is a remote intelligent I/O expansion unit to expand I-87K series I/O modules over the Ethernet for industrial monitoring and controlling applications. It offers two Ethernet switch ports to form a daisy-chain topology. The daisy-chain feature allows ET-87Pn to connect in series to each other or other Ethernet devices. Uses can easily simplify the cabling and save installation space with the feature.

ET-87Pn is designed to be used in harsh and noisy environment, so the hardware is manufactured with wide power input range (10 ~ 30 VDC), isolated power input and can operate under wide temperature (-25 ~ +75 °C). To simplify installation and maintenance of I/O modules, it provides many useful features, such as: hot swap allowed, auto configuration, LED indicators for fault detection, dual watchdog to keep alive, programmable power on and safe values for safety.

There are more than 30 I/O modules supported with the unit, including analog input/output, digital input/output, counter, frequency I/O modules. We provide various software development kits (SDK) and demos, such as DLL, ActiveX, Labview driver, InduSoft driver, Linux driver, OPC server, etc. The I-87K series I/O modules plugged in the ET-87Pn can be easily integrated into variant software system.
 
  • Two Ethernet Ports for Daisy-Chain Topology
  • LAN Bypass Feature
  • Hot Swap Allowed
  • Auto Configuration
  • LED Indicators for Fault Detection
  • Push Buttons to Configure IP Address
  • DCON Protocol
  • 4/8 I/O Slots for I-87K Modules
  • Operating Temperature: -25 ~ +75 °C
 
 
Models ET-87P4 ET-87P8
Interface Type: Ethernet
Port RJ-45 × 2
10/100Base-TX
(Auto-negotiating, Auto MDI/MDI-X, LED indicators)
Cabling Daisy-Chain Ethernet Cabling
Isolation 3000 VDC
ESD Protection +/- 4 K Contact Discharge and +/- 8 K Air Discharge
Communication Protocol DCON Protocol (ASCII format)
LED Display/Indicators
Power Yes
System Ready Yes
Auto Configuration Yes
Slot Status Yes
IP Address Yes (with push buttons to configure IP address)
I/O Expansion Slots
Hot Swap Yes
Auto Configuration Yes
Support Module Type High profile I-87K module only
Slots Numbers 4 8
Mechanical
Dimensions (W x L x H) 188 mm x 132 mm x 111 mm 312 mm x 132 mm x 111 mm
Environmental
Operating Temperature -25 ~ +75°C
Storage Temperature -30 ~ +80°C
Ambient Relative Humidity 10 ~ 90% RH (non-condensing)
Power
Input Range +10 ~ +30 VDC
Redundant Input Yes
Reverse Polarity Protection Yes
Isolation 1000 VDC
Frame Ground Yes
Consumption 6 W
Output Capacity 5 W supply to CPU and Backplane
25 W supply to I/O expansion slots
Total: 30 W
 
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