Image is for illustrative purposes only. Please refer to product description.
- Manufacturer
- Allen-Bradley
- Manufacturer part number
- 1756-EWEB
- Product family
- ControlLogix Communication Modules (1756)
- Technical datasheet
- Data sheet
Specifications
| Attribute | Value |
|---|---|
| Type | EtherNet/IP communication module |
| Manufacturer lifecycle | Discontinued |
| Application | EtherNet/IP |
| Communication | Ethernet/IP |
| Display | Digital |
| Enclosure | None (open-style) |
| Mounting | Chassis |
| Special Features | Web Server |
| Sub Brand | ControlLogix |
| Interface | 1 Copper RJ45 (10/100 Mbps) |
| Number Of Channels | 1 |
| ATEX temp code | T4 |
| Communication rate | 10/100 Mbps |
| Conducted RF immunity | 10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz |
| Current draw | 700mA @ 5.1V DC, 3mA @ 24V DC |
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| EFT/B immunity | ±2kV @ 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 | 1 Ethernet RJ45 Category 5 |
| Isolation voltage | 30V (continuous), basic insulation type, Ethernet, network to backplane, Type tested @ 707V DC @ 60s |
| Module location | Chassis based, any slot |
| Operating temperature | 0 °C <Ta <60 °C (32 °F <Ta <140 °F) |
| Power dissipation | 3.7 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, 1V/m with 1 kHz sine wave 80% AM from 2000...2700 MHz |
| Relative humidity | 5...95% noncondensing |
| Shock | Operating: 30 G, Non operating: 50 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 | 12.6 btu/h |
| Vibration | 2 G @ 10...500 Hz |
| Wiring category | 2 - on Ethernet ports |
Description
The Allen-Bradley 1756-EWEB is listed by Rockwell Automation as the ControlLogix ENET/IP Web Server Module, a communication module with a web server as its special feature. Rockwell describes it as an Ethernet/IP Enhanced Web Server Module supporting 64 TCP/IP connections. Rockwell's product data gives one copper RJ45 interface at 10/100 Mbps, chassis mounting in any slot, a slot width of 1, and a current draw of 700mA at 5.1V DC and 3mA at 24V DC. Rockwell lists the lifecycle status as Discontinued.
Application: Communication module
Used with: ControlLogix 1756 chassis
What is the 1756-EWEB used for?
It is a chassis-based communication module for a ControlLogix system, connecting over EtherNet/IP and TCP/IP through one Ethernet port. Rockwell lists the application as EtherNet/IP and the special feature as Web Server. When planning installation, note that Rockwell gives the enclosure as none (open-style) and the maximum surrounding air temperature as 60 °C.
Key features
- Enhanced web server module for ControlLogix chassis
- Supports 64 TCP/IP connections
- One Category 5 RJ45 Ethernet port
- Chassis based, any slot, one slot wide
- Operating range 0 to 60 °C
Documents and Resources
Associated Products
| Image | Product | Description | Stock | View | Add to RFQ |
|---|---|---|---|---|---|
 | 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-EN2TRAllen-Bradley | ControlLogix EtherNet/IP module, dual port 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-DHRIOAllen-Bradley | ControlLogix DH Plus/RIO Comms Module | 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-CN2RKAllen-Bradley | ControlLogix Redundant ControlNet Module, Conformal Coated | In stock | View | |
 | 1756-TIMEAllen-Bradley | ControlLogix Position and Time Services | In stock | View | |
| 1756-EN4TRAllen-Bradley | CLX ENet/IP 1G CIP Sec Module | In stock | View |
Product Questions
Is the 1756-EWEB discontinued?
Yes. Its manufacturer lifecycle status is Discontinued.
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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