Overview
The Allen Bradley 1756-CN2/A is a ControlNet communication module for ControlLogix systems, providing high-speed, deterministic network connectivity. It enables efficient data exchange between controllers, I/O modules, and networked devices, supporting distributed control and real-time industrial applications.
General Information
Part Number: 1756-CN2/A
Manufacturer: Allen Bradley
Brand: Allen Bradley
Country of Origin: USA
Series: ControlLogix
Type: ControlNet Communication Module
Application: Industrial network communication and distributed control
Technology: High-speed ControlNet protocol with redundancy support
Power Specifications
Supply Voltage: Powered through ControlLogix backplane
Power Consumption: ≤ 5 W
Input: Backplane-powered module
Protection: Surge and reverse-polarity protection
Indicators: LEDs for power, network status, and fault
Communication & Interface
Network Protocol: ControlNet
Port Type: RJ-45 / ControlNet connector
Diagnostics: Node status, link supervision, and network fault detection
Compatibility: Compatible with ControlLogix controllers and ControlNet devices
Operator Interface: Status LEDs and network diagnostics
Reset Features: Supports soft and hardware resets
Environmental
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Humidity: 5% to 95% RH, non-condensing
Protection Rating: IP20 / Suitable for industrial enclosure mounting
Dimensions & Weight
Dimensions (L × W × H): 144.5 × 34.6 × 130.18 mm
Weight: 0.26 kg
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