The Allen-Bradley 1756-A13 is a 13-slot chassis designed for the ControlLogix automation platform. It serves as the physical housing and backplane for ControlLogix controllers, communication adapters, and I/O modules. The chassis provides the necessary power distribution and high-speed communication bus required for module operation within a ControlLogix system.

Features

• Thirteen (13) dedicated slots for module installation.
• Supports Removal and Insertion Under Power (RIUP), allowing for module replacement without shutting down the entire system.
• Integrated backplane for power distribution and inter-module communication.
• Supports producer/consumer communication and system-wide time stamping.
• Robust design for panel-mount installation in NEMA-rated enclosures.

Applications

This chassis is suitable for demanding industrial environments, including:

• Energy and power generation, such as turbine control and auxiliary systems.
• Oil and gas production, including refinery and chemical plant automation.
• Infrastructure projects, such as tunnel ventilation and airport baggage handling systems.
• Food, beverage, and pharmaceutical manufacturing requiring precise production control.

Technical Specifications

Installation Guidelines

• Ensure the chassis is mounted on a flat, rigid surface within a NEMA-rated enclosure.
• Maintain adequate clearance around the chassis to facilitate heat dissipation and airflow.
• Use all eight mounting tabs to secure the chassis firmly to the backplane.
• Ensure the system is properly grounded according to local electrical codes to minimize EMI/RFI interference.
• Always power down the system before installing or removing the chassis itself, though individual modules support RIUP.
• Verify that the power supply module is correctly seated in the designated slot to ensure proper backplane voltage distribution.

FAQ

What is the slot capacity of the 1756-A13?

The 1756-A13 features 13 slots, numbered 0 through 12, which can accommodate any combination of ControlLogix controllers, I/O, or communication modules.

Is this chassis designed for 19-inch rack mounting?

No, the 1756-A13 is designed for surface mounting on a back panel. It is not equipped with standard 19-inch rack-mounting ears.

What is the required enclosure size for this chassis?

The chassis is typically installed in an enclosure with a minimum recommended size of 24 in x 30 in x 8 in to ensure proper thermal management and clearance.