Allen Bradley 1768-CNB Communication interface for CompactLogix PLC systems

FAQ

Q1. What is the 1768‑CNB module?
It is a communication interface module for CompactLogix controllers that provides ControlNet network connectivity.

Q2. What network does the 1768‑CNB support?
It supports ControlNet at a data rate of up to 5 Mbps.

Q3. How many nodes and connections can this module support?
It can support up to 99 nodes and up to 48 simultaneous connections on a ControlNet network.

Q4. What type of connectors does it have?
It has one BNC connector for ControlNet coaxial connection and one RJ45‑shielded NAP connector for network access.

Q5. What power does this module draw?
It draws approximately 1 A from the backplane at 5 V DC and consumes about 5.14 W.

Q6. What are the physical dimensions and weight?
Its dimensions are roughly 132 mm × 56.7 mm × 105.1 mm, and it weighs about 0.26 kg.

Q7. What are the environmental operating limits?
It is rated for 0 °C to 60 °C operating temperature and –40 °C to 85 °C storage temperature with 5 %–95 % non‑condensing humidity.

Q8. Is the 1768‑CNB still actively manufactured?
No, this ControlNet module has been discontinued by the manufacturer.

1768-CNB Allen Bradley

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