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ControlLogix Communication Module
SKU: 1756-CN2RXT
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Short Description
Description:
The 1756-CN2RXT is a ruggedized ControlNet communication module for ControlLogix systems that can function in extreme temperatures and supports redundant media.
It supports real-time, deterministic data interchange between controllers, I/O, and other devices via the ControlNet protocol, making it ideal for mission-critical applications in tough industrial environments such as oil and gas, mining, and outdoor installations.
Its dual coaxial ports enable fault-tolerant communication, ensuring network integrity even if one media path fails.
The module fully connects with the ControlLogix chassis and Rockwell's Studio 5000 software, allowing for both scheduled and unscheduled communications in flexible control structures.
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Network & Protocol:
Protocol: ControlNet.
Media Type: Coaxial (RG-6 quad-shielded cable).
Redundancy: Dual coaxial ports for redundant media support.
Data Rate: 5 Mbps.
Node Capacity: Up to 99 nodes per ControlNet network.
Messaging Support: Scheduled and unscheduled messaging.
Determinism: Real-time, time-critical data exchange.
Hardware & Installation:
Chassis Compatibility: ControlLogix chassis (1756 series).
Slot Requirement: Occupies 1 slot.
Backplane Current Draw:
800 mA @ 5.1 VDC.
3 mA @ 1.2 VDC.
Status Indicators:
Module OK.
Network status.
Channel A/B activity.
Channel redundancy.
Environmental Ratings:
Operating Temperature: –25°C to +70°C (extended range).
Storage Temperature: –40°C to +85°C.
Humidity: 5% to 95%, non-condensing.
Shock Resistance: 30g.
Vibration Resistance: 10–500 Hz, 2g.