Product Summary
The 1768-CNB is a CompactLogix ControlNet communication module from Allen-Bradley. It delivers robust media redundancy, intrinsic safety, and high-speed data transfers. With support for up to 48 connections and 99 nodes, this module ensures reliable network control for demanding industrial applications.
Why Choose the 1768-CNB for Your ControlNet Network?
Procurement managers benefit from the 1768-CNB's ability to handle up to 48 connections simultaneously. This high connection count supports complex automation architectures without extra hardware. The module fits any slot 1-4 in a 1768 chassis, simplifying integration into existing CompactLogix systems. Its power consumption is only 5.14 watts, reducing thermal load in cabinets. The ControlNet network runs at 5 Mbps, enabling fast data exchange for time-critical processes. Engineers appreciate the wide operating temperature range of 0 to 60°C. This tolerance ensures stable performance in harsh factory floors. The module also withstands nonoperating temperatures from -40 to 85°C, allowing safe storage year-round. With certifications like c-UL-us and CE, the 1768-CNB meets global safety standards. This compliance simplifies approval for multinational projects. For applications requiring media redundancy, the module provides a BNC connector for non-redundant media and a NAP connector. These options give flexibility in network design. The 1768-CNB supports redundant controller systems, enhancing uptime for critical processes. Its vibration rating of 5 g at 10-500 Hz and shock rating of 30 g operating guarantee reliability in high-vibration environments. Procurement teams can rely on this module for long-term deployment.
Expert Technical Evaluation of the 1768-CNB
The 1768-CNB interface module operates on a ControlNet network with deterministic performance. It supports a maximum of 99 nodes, making it suitable for large distributed control systems. Each node communicates at 5 Mbps, ensuring consistent data delivery. The module draws 1 ampere at 5 volts from the backplane, which minimizes power supply loading. Thermal dissipation is 17.5 BTU/hr, low enough for compact enclosures. Isolation voltage is 30 volts, protecting sensitive electronics. Environmental testing shows noncondensing humidity tolerance from 5% to 95%, suitable for humid production areas. The module weighs only 0.260 kg (0.57 lb) and measures 132 x 56.7 x 105.1 mm. This compact footprint allows mounting on a DIN rail or panel. The 1768-CNB uses two connectors: one BNC for coaxial media and one RJ45 NAP for programming. These connectors support easy wiring and troubleshooting. Engineers can integrate the module into redundant architectures for high availability. The module's shock rating of 50 g nonoperating ensures durability during transport. The unit is approved under multiple international certifications, including CE, C-Tick, and CI. This broad certification set reduces qualification time for global installations. The 1768-CNB is a reliable choice for high-speed data transfers and intrinsic safety applications. Its design aligns with Rockwell Automation's CompactLogix series, ensuring seamless system compatibility.
Logistics & Standard Packaging Details
