Allen Bradley 1756-CN2/A ControlNet Communication Module

FAQ

Q1: What is the primary function of the 1756-CN2/A module?
The module provides ControlNet network communication for ControlLogix automation systems.

Q2: What communication speed does the module support?
It supports a ControlNet transmission rate of 5 Mbps.

Q3: How many network connections are supported?
The module supports up to 131 total connections and 128 Logix communication connections.

Q4: What type of network connector is used?
The module uses a single ControlNet BNC communication port.

Q5: Which systems are compatible with the 1756-CN2/A?
It is designed for Allen-Bradley ControlLogix chassis-based systems.

Q6: What is the backplane current requirement?
The module requires 1100 mA at 5.1V DC and 3 mA at 24V DC.

Q7: What are the dimensions and weight of the unit?
The dimensions are 145 × 35 × 140 mm, and the weight is approximately 0.26 kg.

Q8: Is the 1756-CN2/A still available?
Yes, the module is listed as Active Mature within the ControlLogix communication product family.

1756-CN2/A Allen Bradley

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