Buyer’s Guide: Allen-Bradley 1768-EWEB CompactLogix Web Server
Plant managers and maintenance engineers often need remote visibility into control systems without adding complex software. The Allen-Bradley 1768-EWEB solves that problem. It is a CompactLogix Enhanced Web Server module that lets you monitor and modify control data through standard XML web pages. This practical module fits directly into your existing CompactLogix chassis, turning any networked PC into a window into your process.
Why the 1768-EWEB Matters for Your Operation
This module belongs to the CompactLogix product line and comes in Series A and B. It uses 802.3 compliant shielded or unshielded twisted pair cabling for connection. With one Ethernet RJ45 Category 5 interface, it supports up to 64 TCP/IP connections and 128 CIP connections. The communication rate runs at 10/100 Mbps, fast enough for responsive data collection on a single high-speed network. A flash file system provides 2 MB of storage for web pages and data views, so your custom dashboards stay resident on the module.
Technical Specifications at a Glance
| Specification | Value |
|---|---|
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number | 1768-EWEB |
| Product Line | CompactLogix |
| Module Type | Web Server Module |
| Series | A and B |
| Module Storage | 2 MB |
| Communication | Ethernet |
| Interface | 1 Ethernet RJ45 Category 5 |
| Communication Rate | 10/100 Mbps |
| TCP/IP Connections | Up to 64 |
| CIP Connections | Up to 128 |
| Power Consumption | 4.34 Watts |
| Isolation Voltage | 30 Volts |
| Shipping Weight | 2 pounds |
| Shipping Dimensions | 8 x 8 x 5 inches |
| UPC | 10612598344847 |
Where the 1768-EWEB Fits Best
Plant management applications benefit most from this module. Imagine a production supervisor who needs real-time tank levels or machine status from a browser. The 1768-EWEB delivers that data over your existing Ethernet/IP network. For data collection across a single high-speed network, the module aggregates information without extra middleware. Internet or intranet connections become straightforward because the web server speaks standard XML. Oil and gas facilities often use this setup for remote pump monitoring or pipeline status checks, reducing the need for physical rounds.
Installation and Setup Notes
The 1768-EWEB can be placed into slot 3 or slot 4 of the CompactLogix 1768 Bus. This enhancement is designed for use with the 1769-L45 controller. The module ships without an enclosure and supports panel mounting or DIN rail installation. Status LED displays help you confirm power and network activity during commissioning. Because it uses standard twisted pair cabling, you can integrate it into existing Ethernet infrastructure without special tools. For fieldbus integration, note that wiring into such networks may require an external gateway or connection module. Confirm cables and gateways with your supplier before ordering.
Maintenance and Reliability
Keep the module free of dust and ensure adequate ventilation around the panel. Inspect connections periodically for tightness and corrosion. The 30 Volts isolation voltage protects against common ground loops in industrial settings. Since the 1768-EWEB has no moving parts, wear is minimal. Its 2 MB flash storage retains web pages even after power cycles. For oil and gas applications, place the module in a controlled enclosure to avoid extreme temperatures. If you need spares when you need them, Oil AutoTech offers fast dispatch, worldwide.
Selection Checklist
Before buying, verify your CompactLogix chassis has an open slot 3 or slot 4. Confirm your controller is a 1769-L45 or compatible model. Check that your network switch supports 10/100 Mbps and has available ports. Decide whether you need Series A or B based on your existing firmware. The 1768-EWEB works with standard XML browsers, so no proprietary software is required. Contact Oil AutoTech today for pricing and availability.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
