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The 1756-A13 is a ControlLogix 13-slot chassis used in industrial automation systems to provide structural housing, electrical backplane communication, and power distribution for ControlLogix modules.
It serves as the central hardware platform where PLC CPU modules, I/O modules, and communication modules are installed and interconnected.
The chassis enables high-speed internal communication between modules through a shared backplane architecture, ensuring synchronized control and data exchange across the automation system.
It is widely used in medium to large-scale industrial control systems requiring modular expandability and high system reliability.
| Item | Details |
|---|---|
| Brand | ControlLogix platform manufacturer |
| Product Model | 1756-A13 |
| Product Type | PLC Chassis / Rack |
| Product Family | ControlLogix 1756 Series |
| Series | ControlLogix Modular Control System |
| Function | Module housing + backplane communication |
| Installation Type | Panel-mounted chassis |
The ControlLogix system is a modular PLC platform designed for scalable industrial automation.
Its chassis-based structure allows multiple modules to operate within a unified backplane network.
The 1756-A13 provides 13 module slots, enabling flexible system expansion and high-density automation configurations.
Each module installed in the chassis communicates via the high-speed backplane, eliminating external wiring between modules.
| Parameter | Specification |
|---|---|
| Model | 1756-A13 |
| Product Type | ControlLogix Chassis |
| Number of Slots | 13 slots |
| Backplane Communication | High-speed ControlLogix backplane |
| Mounting Type | Horizontal panel mounting |
| Compatible Modules | All ControlLogix 1756 modules |
| Power Supply Location | Left-side external power module |
| Backplane Voltage Levels | 1.2V / 3.3V / 5.1V / 24V DC |
| Backplane Current @ 1.2V DC | 1.5 A |
| Backplane Current @ 3.3V DC | 4 A |
| Backplane Current @ 5.1V DC | 15 A |
| Backplane Current @ 24V DC | 2.8 A |
| Power Dissipation | ~5.4 W |
| Isolation | Module-dependent |
| Cooling Method | Natural convection |
| Enclosure Type | Open-style chassis |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Vibration Resistance | Industrial-grade (2 g) |
| Shock Resistance | 30 g operating / 50 g non-operating |
| Dimensions | 58.8 × 16.9 × 14.5 cm |
| Weight (kg) | ~1.9 kg |
Supports up to 13 ControlLogix modules, enabling large and complex automation systems.
Provides deterministic and synchronized communication between all installed modules.
Any module type can be installed in any slot, simplifying system configuration.
Designed for continuous operation in harsh industrial environments.
Distributes multiple voltage levels across modules via internal backplane.
Used in automotive production lines, assembly systems, and automated factories.
Applied in chemical plants, oil refining, and continuous processing systems.
Used in CNC machines, robotics, and packaging machinery.
Applied in water treatment plants, power distribution systems, and utilities control.
Used in multi-rack PLC architectures for large industrial facilities.
| Advantage | Description |
|---|---|
| 13-Slot Capacity | Supports large-scale systems |
| High-Speed Backplane | Fast internal communication |
| Flexible Module Placement | Any-slot architecture |
| Scalable Design | Easy system expansion |
| Industrial Reliability | Stable long-term operation |
| Strong Mechanical Structure | Resistant to vibration |
| Efficient Power Distribution | Multi-voltage support |
| Low Maintenance | Modular replacement capability |
| Model | Product Type | Main Function | Application | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1756-A10 | ControlLogix Chassis | 10-slot rack | Medium systems | 50.8 × 76.2 × 20.3 cm | 1.45 kg |
| 1756-A13 | ControlLogix Chassis | 13-slot rack | Large systems | 58.8 × 16.9 × 14.5 cm | 1.9 kg |
| 1756-A17 | ControlLogix Chassis | 17-slot rack | Extended systems | ~75 × 76 × 20 cm | ~2.2 kg |
| 1756-A7 | ControlLogix Chassis | 7-slot rack | Small systems | ~42 × 17 × 14 cm | ~1.2 kg |
| 1756-A4 | ControlLogix Chassis | 4-slot rack | Compact systems | ~33 × 15 × 13 cm | ~0.9 kg |
| Model | Product Category | Main Features | Application Area | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1756-L71 | CPU Module | High-performance controller | Large automation systems | 20 × 15 × 10 cm | 0.90 kg |
| 1756-L73 | CPU Module | Advanced ControlLogix CPU | Distributed control systems | 20 × 15 × 10 cm | 0.95 kg |
| 1756-EN2TR | Ethernet Module | Dual-port Ethernet/IP | Industrial networking | 14 × 11 × 8 cm | 0.45 kg |
| 1756-IF8 | Analog Input Module | 8-channel input | Process control | 15 × 12 × 5 cm | 0.35 kg |
| 1756-OF8 | Analog Output Module | 8-channel output | Precision control systems | 15 × 12 × 5 cm | 0.36 kg |
The 1756-A13 serves as the structural and electrical backbone of ControlLogix systems.
It enables integration of multiple PLC modules into a unified high-speed control system.
Its modular architecture supports flexible system design and scalable automation expansion.
The chassis is mounted horizontally inside industrial control cabinets.
Modules are inserted directly into slots without internal wiring between them.
Maintenance is simplified through modular replacement, reducing system downtime.
Proper cabinet ventilation is required for thermal stability.
The 1756-A13 is widely used in industrial environments due to its rugged construction and stable backplane communication.
It supports continuous operation in demanding manufacturing and process control applications.
Its reliability makes it a core component in large-scale automation systems worldwide.
The Allen Bradley 1756-A13 is a 13-slot ControlLogix chassis designed for medium-to-large industrial automation systems.
It provides modular expansion capability, high-speed backplane communication, and robust industrial durability.
Its flexible architecture and stable performance make it a key infrastructure component in modern PLC-based control systems.