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The 1756-EN2TR functions as a core EtherNet/IP communication interface within the Allen-Bradley ControlLogix family, providing robust network integration for modern automation systems.
Fully supports IEEE 1588 CIP Sync precise time synchronization protocol
I/O packet processing rate up to 25,000 packets per second
Equipped with powerful baseband processing capabilities, the module can simultaneously manage up to 128 concurrent TCP connections and 256 CIP connections, while supporting a maximum of 32 multicast tags to optimize data routing across the network fabric. For high-density data processing, it handles an impressive I/O packet rate of 25,000 packets per second alongside 2,000 packets per second for HMI messaging, ensuring efficient data transmission at adaptable speeds of 10 or 100 Mbps for real-time control and monitoring.
Furthermore, this module fully supports the IEEE 1588 CIP Sync precise time synchronization protocol to orchestrate time-critical industrial deployments. Its electrical requirements indicate a cost-efficient current draw of 1 Amp at 5.1V DC and 3 mA at 24V DC, which dissipates only 5.1 Watts of power in total. This low energy footprint leads to a minimal thermal output of approximately 17.4 BTU per hour, facilitating straightforward thermal management within the control enclosure. Operating as a dependable communication solution, the 1756-EN2TR significantly enhances the overall effectiveness of industrial control and data acquisition operations.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Allen Bradley 1756-EN2TR Ethernet/IP Communication Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Automotive
In highly automated stamping, welding, and assembly shops, this module connects hundreds of industrial robots, drives, and distributed I/O stations. While sustaining large-scale, high-speed Ethernet communication, its dual-port technology ensures the entire production line remains operational even if a single robot loses connection.
Semiconductor
Within highly stringent wafer fabrication cleanrooms, this module enables seamless communication among chemical delivery systems, precision lithography tools, and vacuum robotic handlers. It fully supports IEEE 1588 precise time synchronization to keep clock errors between equipment at a microsecond level, safeguarding wafer processing accuracy.
Petrochemical
In vast refineries and ethylene cracking units, this module serves as the backbone communication card for remote I/O stations. It uploads real-time pressure, temperature, and flow transmitter data from field explosion-proof enclosures over hundreds of meters to the central controller, achieving centralized interlock control over high-risk process units.
Lithium Battery
In high-speed battery cell coating, winding, and stacking processes, multiple motion servo axes require extremely high-frequency data synchronization. Utilizing its ultra-high throughput of 25,000 packets per second, this module carries real-time motion control commands and tension feedback data to prevent electrode sheets from tearing during high-speed tensioning.
Thermal Power
Used for distributed control across power plant steam turbine auxiliaries, boiler feedwater, and coal handling systems. Through dual-port DLR technology, the module chains PLC chassis from multiple workshops into a closed loop, automatically switching to a backup path within milliseconds if a network cable is chewed by rodents or mechanically damaged, thereby avoiding unplanned power outages.
When using the 1756-EN2TR you must first prevent IP address conflicts and ensure firmware compatibility with the controller. Secondly you need to enable the Ring Supervisor function for DLR topologies to ensure network redundancy. Finally you must carefully monitor CIP connection counts and packet loads to prevent overwhelming the module's bandwidth and causing communication dropouts.
In terms of physical installation and environmental resilience, this ControlLogix module occupies a single slot within any standard 1756 chassis to preserve backplane space. To guarantee operational safety and signal integrity amidst severe factory floor electrical noise, the hardware incorporates a 30 V continuous isolation voltage rating between the network ports and the backplane. Furthermore, its rugged construction is engineered to withstand demanding industrial climates, maintaining reliable performance within an ambient operating temperature range of 0 to 60 degrees Celsius without requiring active external cooling.
It is an industrial-grade EtherNet/IP network communication module belonging to the Allen-Bradley ControlLogix 1756 system.
What is the primary industrial application of 1756-EN2TR?
It is primarily used to establish high-speed data transmission between programmable automation controllers, remote I/O arrays, and other Ethernet devices.
How to correctly use the 1756-EN2TR module in an industrial automation system?
Insert it directly into any available slot of a ControlLogix chassis and connect it to the industrial Ethernet network using RJ45 cables.
What status information do the panel LED indicators on the 1756-EN2TR provide?
The panel LEDs display module operation status, network connection status, link activity, and data transmission speed.
What are the prominent advantages of upgrading an older 1756-ENBT to a 1756-EN2TR?
Upgrading provides double the connection capacity, higher data throughput, and robust DLR network redundancy protection.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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