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1756-CN2R Allen-Bradley
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The 1756-CN2R is an Allen-Bradley ControlLogix communication module providing redundant ControlNet connectivity. It occupies a single backplane slot and integrates dual ControlNet BNC ports to support up to 5 Mb/s transmission with ControlNet redundancy. It supports up to 99 network nodes, 128 Logix connections, and up to 131 total connections. It is used where redundant, deterministic network communication is required within a ControlLogix system-common in large-scale discrete manufacturing or process control environments requiring high availability.
Best Suited For
- ControlLogix systems requiring redundant ControlNet communication
- High-availability network architectures
- Application requiring support for up to 99 ControlNet nodes
- Systems needing 128 Logix communication connections
Technical Specifications
I/O & Electrical
Communication & Power
Physical & Environmental
Certifications
Meets ControlNet standard; certified for CISPR 11 Class A emissions; complies with industry-standard vibration, shock, ESD, EFT/B, RF and surge immunity per ControlLogix module requirements.