Image is for illustrative purposes only. Please refer to product description.
- Manufacturer
- Allen-Bradley
- Manufacturer part number
- 1756-EN2TR
- Product family
- ControlLogix Communication Modules (1756)
- Technical datasheet
- Data sheet
Specifications
| Attribute | Value |
|---|---|
| Type | EtherNet/IP communication module |
| Manufacturer lifecycle | Active |
| Application | EtherNet/IP |
| Communication | Ethernet/IP |
| Display | Digital |
| Enclosure | None (open-style) |
| Mounting | Chassis |
| Sub Brand | ControlLogix |
| Interface | 2 Copper RJ45 (10/100 Mbps) |
| Number Of Channels | 2 |
| ATEX temp code | T4 |
| CIP unconnected messages | 128 + 128 (backplane + Ethernet) |
| Communication rate | 10/100 Mbps |
| Conducted RF immunity | 10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz |
| 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.) |
Show all 39 specificationsShow fewer specifications
| Current draw | 1A @ 5.1V DC, 3mA @ 24V DC |
|---|---|
| EFT/B immunity | ±3kV @ 5kHz on Ethernet ports |
| Emissions | CISPR 11: Class A |
| Enclosure type rating | None (open-style) |
| ESD immunity | 6 kV contact discharges, 8 kV air discharges |
| Ethernet cable | 802.3 compliant shielded or unshielded twisted pair |
| Ethernet ports | 2 Ethernet RJ45 Category 5 |
| 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 |
| Module location | Chassis based, any slot |
| Operating temperature | 0 °C <Ta <60 °C (32 °F <Ta <140 °F) |
| Power dissipation | 5.1 W |
| 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 |
| Redundancy | Yes |
| Relative humidity | 5...95% noncondensing |
| Shock | Operating: 30 G, Nonoperating: 30 G |
| Slot width | 1 |
| Storage temperature | -40 °C <Ta <85 °C (-40 °F <Ta <185 °F) |
| Supporting protocol for EtherNet/IP | Yes |
| Supporting protocol for TCP/IP | Yes |
| Surge transient immunity | ±2 kV line-earth (CM) on Ethernet ports |
| Surrounding air temperature, max | 60 °C |
| Thermal dissipation | 17.4 btu/h |
| Vibration | 2 G @ 10...500 Hz |
| Wiring category | 2 - on Ethernet ports, 3 - on USB ports |
Description
The Allen-Bradley 1756-EN2TR is a ControlLogix communication module, listed by Rockwell Automation as CLX ENet/IP 100M DLR. Rockwell describes it as an EtherNet/IP communication module, dual port, 10/100M twisted pair, 128 TCP connections. Rockwell's product data gives a maximum of 128 TCP and 256 CIP connections, a current draw of 1A at 5.1V DC and 3mA at 24V DC, and power dissipation of 5.1 W. Rockwell lists its lifecycle status as Active.
Application: Communication module
Used with: ControlLogix 1756 chassis
What is the 1756-EN2TR used for?
It connects a ControlLogix chassis to an EtherNet/IP network through its two RJ45 ports. Rockwell lists the application as EtherNet/IP, with support for both EtherNet/IP and TCP/IP protocols. The module is chassis based and can be fitted in any slot.
Key features
- Two RJ45 Category 5 Ethernet ports
- Supports EtherNet/IP and TCP/IP protocols
- Chassis based, fits any slot, one slot wide
- Redundancy listed as supported by Rockwell
- Operating temperature 0 to 60 °C
Documents and Resources
Associated Products
| Image | Product | Description | Stock | View | Add to RFQ |
|---|---|---|---|---|---|
 | 1756-CNBAllen-Bradley | ControlLogix ControlNet communication module, 1 BNC | In stock | View | |
 | 1756-CNBRAllen-Bradley | ControlLogix ControlNet communication module, redundant | In stock | View | |
 | 1756-DNBAllen-Bradley | ControlLogix DeviceNet bridge and scanner module | In stock | View | |
 | 1756-EN2FAllen-Bradley | ControlLogix EtherNet/IP module, 100 Mbps multimode fiber | In stock | View | |
 | 1756-EN2TAllen-Bradley | ControlLogix EtherNet/IP communication module, 10/100 Mbps | In stock | View | |
 | 1756-EN2TXTAllen-Bradley | ControlLogix EtherNet/IP module, extended temperature | In stock | View | |
 | 1756-EN3TRAllen-Bradley | ControlLogix EtherNet/IP module, dual port copper | In stock | View | |
 | 1756-ENBTAllen-Bradley | ControlLogix EtherNet/IP communication module, 10/100 Mbps | In stock | View | |
 | 1756-EWEBAllen-Bradley | ControlLogix EtherNet/IP web server module, 10/100 Mbps | In stock | View | |
 | 1756-EN2TPXTAllen-Bradley | ControlLogix EtherNet/IP Module with PRP, XT | In stock | View | |
 | 1756-EN2TRXTAllen-Bradley | ControlLogix Dual-Port EtherNet/IP Module, XT | In stock | View | |
 | 1756-EN4TRAllen-Bradley | CLX ENet/IP 1G CIP Sec Module | In stock | View |
Product Questions
Is the 1756-EN2TR discontinued?
No. Its manufacturer lifecycle status is Active.
Can another Allen-Bradley ControlLogix Communication Modules part replace it?
Potential replacements must be checked against the required ratings, dimensions and connections. Sharing a family name does not establish interchangeability.
Do you ship worldwide?
Yes. TimControls ships worldwide. Parts usually ship within 3 to 7 working days of order confirmation, and the exact lead time and shipping options are stated on your quote. Include your delivery country and postal code when you ask for a quote.
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