Allen Bradley 1771-NOC PLC Network Communication Module

FAQ

Q1. What is the 1771-NOC used for?
It is used to enable network communication between PLC-5 systems and other industrial controllers.

Q2. What communication protocols does it support?
It typically supports Data Highway Plus (DH+) and related Allen-Bradley network protocols.

Q3. What is its main function in a PLC system?
It allows PLC-5 controllers to exchange data with other PLCs and supervisory systems.

Q4. What is the data transfer speed?
Up to 57.6 kbps depending on network configuration.

Q5. How is it installed?
It is installed as a single-slot module in a 1771 I/O chassis.

Q6. What are the physical dimensions?
Approximately 152 mm × 102 mm × 279 mm.

Q7. What is the weight of the module?
Approximately 1.0 kg (about 2.2 lbs).

Q8. Is the 1771-NOC still manufactured?
No, it is discontinued but still used in legacy industrial networking systems.

1771-NOC Allen Bradley

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