1756-CN2RK Allen-Bradley, ControlLogix Communication Module

Description:

The 1756-CN2RK is a ControlNet communication module designed for use in industrial control systems. It operates at a communication rate of 5 Mbps and supports up to 128 Logix communication connections. The module can accommodate a maximum of 131 connections and 99 nodes, making it suitable for extensive network configurations. It draws 1300 mA at 5.1V DC and 1.7 mA at 24V DC, with a power dissipation of 6.7 W and a thermal dissipation of 22.9 BTU/hr. The module features basic insulation with an isolation voltage of 30V continuous, tested at 500V AC for 60 seconds. It is designed to fit into any slot of compatible chassis such as the 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17. The module includes two ControlNet BNC ports and a USB full-speed port for local programming purposes. It operates within a temperature range of 0 to 60°C and can withstand vibrations up to 2 g and shocks up to 50 g. The 1756-CN2RK is also compliant with various electromagnetic standards, ensuring reliable performance in industrial environments.

Frequently Asked Questions:

1. What is the maximum number of nodes supported by the 1756-CN2RK module?
The 1756-CN2RK module supports a maximum of 99 nodes.

2. What is the isolation voltage rating for the 1756-CN2RK?
The isolation voltage rating for the 1756-CN2RK is 30V continuous, tested at 500V AC for 60 seconds.

Datasheet Link:

1756-CN2RK Allen-Bradley, ControlLogix Communication Module PDF Datasheet