1756-EN2TR
Product ID:228556
Updated: 2026/4/3

Key Features
- 11. Dual-Port Ethernet/IP Interface: The 1756-EN2TR features two Ethernet/IP ports, enabling concurrent transmission of safety, control data, and diagnostic insights. This dual-port configuration enhances the reliability and efficiency of your industrial automation system.;
- 22. Robust Safety Features: Fully compliant with CIP safety standards, this module ensures the secure transmission of critical data. Its explicit secured mode and electronic keying provide an additional layer of security, making it a reliable choice for safety-critical applications.;
- 33. High-Performance Communication: Engineered with cutting-edge communication chips, the 1756-EN2TR delivers 10 to 100 Mbps Ethernet/IP communication rates. This high-performance capability ensures seamless data transmission and real-time control in industrial environments.;
- 44. Versatile Connectivity: Compatible with a wide range of devices, including other Allen-Bradley controllers (PLC-5, MicroLogix, SLC 500), SCADA devices, and human-machine interfaces (HMI). This versatility makes it easy to integrate the module into your existing system.;
- 55. Easy Configuration and Installation: The module includes a USB port for easy access and configuration from a PC, as well as thumbwheel IP address configuration switches for quick setup and replacement. This simplifies the installation process, reducing downtime and increasing productivity.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Dimension Unit | CM | Weight Unit | KG |
| Weight | 0.483 | Stock Status | STOCKED |
| Dimension Length | 19.05 | Dimension Width | 24.003 |
| Lead Time | 5 | Dimension Height | 5.461 |
| Quick Turnaround | false | Preferred Availability | true |
| Repairable | REPAIRABLE | Module location | Chassis based, any slot |
| IECEx temperature code | T4 | North American temperature code | T4A |
| Radiated RF immunity | 10V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz, 10V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz, 3V/m with 1 kHz sine-wave 80% AM from 2000...6000 MHz | Operating temperature | 0 °C <Ta <60 °C (32 °F <Ta <140 °F) |
| Surge transient immunity | ±2 kV line-earth (CM) on Ethernet ports | Conducted RF immunity | 10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz |
| Shock | Operating: 30 G, Nonoperating: 30 G | Relative humidity | 5...95% noncondensing |
| ESD immunity | 6 kV contact discharges, 8 kV air discharges | Vibration | 2 G @ 10...500 Hz |
| Emissions | CISPR 11: Class A | Storage temperature | -40 °C <Ta <85 °C (-40 °F <Ta <185 °F) |
| Surrounding air temperature, max | 60 °C | ATEX temp code | T4 |
| Slot width | 1 | Radio standard UMTS | No |
| Radio standard GSM | No | Radio standard GPRS | No |
| Supporting protocol for SafetyBUS p | No | Supporting protocol for PROFIsafe | No |
| Supporting protocol for PROFINET IO | No | Supporting protocol for PROFINET CBA | No |
| Supporting protocol for Foundation Fieldbus | No | Supporting protocol for AS-Interface Safety at Work | No |
| Radio standard Wi-Fi 802.11 | No | Radio standard Bluetooth | No |
| Supporting protocol for INTERBUS-Safety | No | Supporting protocol for SERCOS | No |
| With potential separation | No | Supporting protocol for SUCONET | No |
| Supporting protocol for Data-Highway | No | Supporting protocol for Modbus | No |
| Supporting protocol for KNX | No | Supporting protocol for INTERBUS | No |
| Supporting protocol for CAN | No | Supporting protocol for PROFIBUS | No |
| Supporting protocol for ASI | No | Supporting protocol for LON | No |
| Isolation voltage | 30V (continuous), Basic Insulation Type, Ethernet to Backplane, USB to Backplane, and USB to Ethernet(Applies only to these modules/series: 1756-EN2T/D, 1756-EN2TR/C,1756-EN3TR/B), Type tested at 980V AC @ 60s | Connections supported, max | TCP: 128, CIP: 256 (CIP connections can be used for all explicit or all implicit applications. for exAle, a 1756-ENBT module has a total of 128 CIP connections that can be used for any combination of connections.) |
| Communication rate | 10/100 Mbps | Wiring category | 2 - on Ethernet ports, 3 - on USB ports |
| Ethernet cable | 802.3 compliant shielded or unshielded twisted pair | Current draw | 1A @ 5.1V DC, 3mA @ 24V DC |
| CIP unconnected messages | 128 + 128 (backplane + Ethernet) | Enclosure type rating | None (open-style) |
| Thermal dissipation | 17.4 btu/h | Power dissipation | 5.1 W |
| Supporting protocol for EtherNet/IP | Yes | Supporting protocol for DeviceNet Safety | No |
| IO link master | No | Redundancy | Yes |
| Supporting protocol for other bus systems | No | Supporting protocol for DeviceNet | No |
| Supporting protocol for TCP/IP | Yes | With optical interface | No |
| Communication | Ethernet/IP |
Specifications may be subject to change without notice
