Allen-Bradley 1756-A17 ControlLogix Chassis with 17-Slot Capacity and High-Density Backplane for Industrial Automation

Product Overview

The ​Allen-Bradley 1756-A17​ is a high-capacity 17-slot chassis designed for large-scale ControlLogix automation systems. This industrial-grade chassis provides maximum expansion capability for complex automation applications requiring extensive I/O points, multiple communication modules, and advanced control capabilities. As part of Rockwell Automation's flagship ControlLogix platform, the 1756-A17 supports the most demanding industrial automation applications with reliable performance and robust construction.

Key Features

• ​Maximum Expansion​ - 17-slot capacity for large system configurations

• ​ControlLogix Platform​ - Full compatibility with 1756 series modules

• ​High-Density Backplane​ - Optimized for maximum module density

• ​Robust Construction​ - Industrial-grade materials for harsh environments

• ​Thermal Management​ | Advanced cooling design for high heat dissipation

• ​Modular Design​ | Flexible configuration options

• ​Global Certifications​ | International safety and quality standards compliance

Technical Specifications

Physical Dimensions

System Architecture

Module Compatibility

• ​Controllers​ | All ControlLogix 1756-L6x and 1756-L7x series processors

• ​I/O Modules​ | Digital, analog, specialty I/O modules

• ​Communication Modules​ | Ethernet, ControlNet, DeviceNet, DH+

• ​Motion Control​ | Servo drive interface modules

• ​Safety Modules​ | GuardLogix safety controllers and I/O

• ​Specialty Modules​ | Process control, weighing, and positioning modules

Backplane Performance

• ​Data Transfer Rate​ | High-speed backplane communication

• ​Bandwidth​ | Optimized for maximum data throughput

• ​Module Isolation​ | Individual slot power and communication isolation

• ​Hot Swap Capability​ | Supports module replacement while powered

• ​Diagnostic Indicators​ | Status LEDs for each slot

Applications

The 1756-A17 chassis is ideal for:

• ​Large Process Control Systems​ - Refineries, chemical plants, water treatment

• ​High-Speed Manufacturing​ - Automotive, packaging, material handling

• ​Power Generation​ | Turbine control, substation automation

• ​Infrastructure Systems​ | Building automation, transportation systems

• ​Batch Processing​ | Pharmaceutical, food and beverage production

• ​Complex Machinery​ | Multi-axis motion control systems

• ​Distributed Control​ | Large-scale distributed I/O systems

Installation Requirements

Environmental Specifications

• ​Operating Temperature​ | 0°C to 60°C (32°F to 140°F)

• ​Storage Temperature​ | -40°C to 85°C (-40°F to 185°F)

• ​Relative Humidity​ | 5% to 95% non-condensing

• ​Altitude​ | Up to 2000 meters (6560 feet)

• ​Pollution Degree​ | Degree 2 per IEC 60664-1

• ​Installation Category​ | Category II

Power Requirements

• ​Power Supply​ | Requires separate 1756 power supply module

• ​Power Budget​ | Dependent on installed modules (calculate total load)

• ​Power Sequencing​ | Proper module power-up sequence required

• ​Grounding​ | Proper chassis grounding essential

Safety and Compliance

Certifications and Standards

• ​CE Mark​ | European compliance for safety and EMC

• ​ATEX​ | Directive 2014/34/EU for explosive atmospheres

• ​IECEx​ | International Explosive Atmospheres standard

• ​CCC​ | China Compulsory Certification

• ​RCM​ | Australian Regulatory Compliance Mark

• ​ABS​ | American Bureau of Shipping

• ​UL Listed​ | Underwriters Laboratories certification

• ​cUL Listed​ | Canadian Standards Association

Safety Features

• ​Grounding​ | Multiple grounding points for safety

• ​Isolation​ | Electrical isolation between modules

• ​Protection​ | Overcurrent and overtemperature protection

• ​EMC Compliance​ | Electromagnetic compatibility per IEC 61326

• ​Arc Flash Protection​ | Designed for industrial safety standards

System Configuration

Recommended Setup

• ​Controller Slot​ | Typically slot 0 for primary processor

• ​Communication Modules​ | Distributed throughout chassis

• ​I/O Modules​ | Grouped by system function

• ​Power Supply​ | Sized for total module requirements

• ​Redundancy​ | Support for redundant configurations

Maximum Configuration

• ​Processors​ | Up to 2 processors in redundant configuration

• ​I/O Modules​ | Maximum of 15 I/O and communication modules

• ​Power Budget​ | Limited by power supply capacity

• ​Heat Dissipation​ | Consider total heat generation

Maintenance and Service

Preventive Maintenance

• ​Visual Inspection​ | Regular check for physical damage

• ​Connection Check​ | Verify module seating and connections

• ​Cleaning​ | Keep chassis clean from dust and debris

• ​Cooling​ | Ensure adequate ventilation

Troubleshooting

• ​LED Indicators​ | Monitor chassis status indicators

• ​Diagnostic Tools​ | Use RSLogix/Studio 5000 diagnostics

• ​Module Testing​ | Individual module verification

• ​Documentation​ | Refer to technical documentation

Why Choose Allen-Bradley 1756-A17?

• ​Maximum Expandability​ | Largest ControlLogix chassis available

• ​System Reliability​ | Proven performance in critical applications

• ​Future-Proof Design​ | Supports latest ControlLogix technologies

• ​Global Support​ | Worldwide technical support network

• ​Quality Assurance​ | Manufactured to highest industry standards

• ​Integration​ | Seamless with PlantPAx and other Rockwell systems

• ​Longevity​ | Backed by Rockwell Automation's product lifecycle support