8-channel Ethernet I/O modules target high RF, EMI environments

March 10, 2014
Acromag expands its line of Ethernet I/O modules to include units for reliable measurements regardless of noisy signals or network traffic.

Acromag (Wixom, MI) has expanded its BusWorks XT Series of Ethernet I/O modules with its new XT1210 and XT1220 models, which provide an 8-channel interface for analog voltage or current input signals and Ethernet/IP, Modbus/TCP, Profinet or peer-to-peer communications networks. The new modules' differential inputs have superior noise rejection for reliable measurements when RF or EMI noise is present, says the company.

The units' internal software helps eliminate the effects of network traffic loads for more reliable messaging. The box's sleek design features dual Ethernet ports, removable front-facing terminal blocks, and DIN rail power bus support. Its convenient USB-to-PC connection makes configuration fast and simple with free Windows software. Suitable for use in harsh environments, all modules operate from -40 to 70°C with high voltage isolation, surge protection, and CE approval. UL/cUL Class 1 Division 2 Zone 2 hazardous location approval is pending.

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The XT1210 model accepts current inputs of 0-20mA, 4-20mA, ±20mA DC, or 0-20 amps AC with an optional toroid sensor. The XT1220 accommodates ±5V, ±10V, 0-5V, or 0-10V DC input ranges. All units run off a 12- 32V DC power source (2.8W) at the terminals or through an integrated power connector bussed along the DIN rail that can provide primary or redundant power. Several versions offers a choice of Ethernet/IP, Profinet, or Modbus TCP/IP protocols with the company's peer-to-peer "i2o" communication support.

Dual 10/100 Ethernet ports allow daisy-chaining units together to simplify cabling and minimize the network switches required, reducing overall system costs. The modules' high-input impedance reduces loading on voltage loops. The configuration software enables use of sample averaging on a per-channel basis. For reliability, operation and diagnostic LEDs offer visual status updates and aide in trouble-shooting.

For more dependable communication, BusWorks XT units also employ the Innovasic PriorityChannel technology, which makes certain that critical data is received on time regardless of traffic on the network. The PriorityChannel technology provides determinism at the device for consistent transmission of time-sensitive data with any of the Ethernet protocols.

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“We continue to develop the BusWorks XT Series to provide even greater versatility, adding analog input modules alongside our current line of digital I/O,” comments Don Lupo, process group sales and marketing director. “The use of differential inputs and Innovasic’s PriorityChannel technology greatly increase reliability by eliminating the risks of signal interference and network congestion.”

All units are available at $495 USD each. For more information, visit www.acromag.com.

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