The 1768-ENBT module from Allen‑Bradley serves as a high-performance Ethernet communication adapter for the CompactLogix product family. Specifically, this module enables a CompactLogix assembly to communicate seamlessly with devices connected to an Ethernet/IP network. It supports both half-duplex and full-duplex communication at 10/100 Mbps speeds with auto-negotiation capability. Furthermore, the 1768-ENBT facilitates data exchange between SCADA systems, HMI terminals, and partner controllers. This makes it an essential component for modern industrial automation architectures.
The 1768-ENBT features one integrated Ethernet port with an RJ45 connector. It supports Fast Ethernet speeds of 10/100 Mbps with auto-negotiation for both half and full-duplex modes. This module supports up to 64 CIP connections and 32 TCP/IP connections simultaneously. It is compatible with the 1768-L43 and 1768-L45 CompactLogix controllers. For systems using the 1768-L43 processor, up to two (2) 1768-ENBT modules can be installed. Meanwhile, systems with the 1768-L45 processor support up to four (4) 1768-ENBT modules. The module draws 834 mA at 5.2V DC from the backplane and consumes 4.34 Watts of power.
The 1768-ENBT supports linear Ethernet topology, making it suitable for straightforward network layouts. It uses standard Category 5 or Category 6 cables with RJ45 connectors on both ends. Moreover, this module works with both commercial Ethernet switches and industrial-grade units such as the Stratix managed and unmanaged switches. It communicates with a wide range of devices, including legacy Allen‑Bradley 1336 drives, PowerFlex AC drives, Kinetix servo drives, and Bulletin 150 smart controllers. Additionally, the 1768-ENBT supports third-party device integration through the Common Industrial Protocol (CIP) over Ethernet.
This single-slot module mounts directly into a 1768 CompactLogix chassis. It supports both DIN rail and panel mounting options for flexible installation. The operating temperature range is 0°C to +60°C (+32°F to +140°F). It withstands operating vibration of 5 g at 10-500 Hz and operating shock of 30 g. These rugged specifications ensure reliable performance in demanding industrial environments.
The 1768-ENBT comes equipped with several front-panel status indicators. These include a link status indicator, an OK status indicator, and a network status indicator. These LEDs provide real-time feedback on module health, network activity, and connection integrity. This diagnostic capability simplifies troubleshooting and reduces system downtime.
First, ensure you discharge any static electricity by touching a grounded object before handling the 1768-ENBT. Wearing a static-free wristband is strongly recommended during installation. Next, insert the module into an available slot within the 1768 CompactLogix chassis until it seats firmly. Secure the module using the built-in locking mechanism. Then, connect the Ethernet cable to the RJ45 port on the front face. Finally, apply power to the chassis and observe the status indicators to confirm normal operation. When powering down the system, wait until all status indicator lights turn off before removing the module. This practice ensures any ongoing memory write operations complete successfully.
Allen-Bradley 1768-ENBT Ethernet Communication Module (1 unit)
Installation instructions sheet
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1. Which CompactLogix controllers are compatible with the 1768-ENBT?
The 1768-ENBT works with the 1768-L43 and 1768-L45 CompactLogix programmable automation controllers. For the 1768-L43, you can install up to two modules, while the 1768-L45 supports up to four units.
2. What is the maximum number of connections supported by this module?
The 1768-ENBT supports up to 64 CIP connections and 32 TCP/IP connections simultaneously, providing ample capacity for most industrial networking requirements.
3. Can I use standard Ethernet cables with the 1768-ENBT?
Yes. The 1768-ENBT uses standard Category 5 or Category 6 cables with RJ45 connectors. Both pre-made and custom-assembled cables work perfectly with this module.
4. Is the 1768-ENBT compatible with third-party devices?
Absolutely. The 1768-ENBT implements the Common Industrial Protocol (CIP) over Ethernet, which allows seamless communication with many third-party devices that support this standard protocol.
5. What do the status indicators on the front panel show?
The 1768-ENBT includes three status LEDs: a link indicator showing physical connection status, an OK indicator displaying module health, and a network status indicator showing active communication. These lights help operators quickly diagnose network issues.
| Brand Name | |
| Model No. | 1768-ENBT |
| Product Type | Communication Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
