Chassis
ControlLogix Chassis Overview
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The ControlLogix system is a modular system that requires a 1756 I/O chassis. Both standard and extreme environment chassis are available. Standard chassis are available in sizes of 4, 7, 10, 13, and 17 module slots, while extreme environment chassis are available with 5 or 7 slots. You can place any module into any slot. The backplane provides a high-speed communication path between modules.
All of the chassis are designed for horizontal-only, back-panel mounting. The chassis are available in these configurations:
- standard chassis.
- ControlLogix-XT chassis.
Features
- Slot guides and snap-in retention for easy and secure module fit for any type of 1756 module.
- Direct mounting accommodation for any 1756 power supply.
Environmentals and Certifications
ControlLogix Chassis Environmental Specifications
| ControlLogix Chassis | ControlLogix-XT Chassis | |
| Operating Temperature | 0…60 °C (32…140 °F) | -25…70 °C (-13…158 °F) |
| Storage temperature |
-40…85 °C (-40…185 °F) | -40…85 °C (-40…185 °F) |
| Relative Humidity | 5…95% noncondensing | 5…95% noncondensing |
| Vibration | 2 g at 10…500 Hz | 2 g at 10…500 Hz |
| Operating Shock | 30 g | 30 g |
| Nonoperating Shock | 50 g | 50 g |
ControlLogix Chassis Certifications
Certifications: c-UL-us, CE, CSA, C-Tick, FM, ATEX, TÜV.
When product is marked. See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification details. For TÜV and SIL certification details, see the Safety Certifications and SIL link.
ControlLogix Standard Chassis
The chassis backplane provides a high-speed communication path between modules and distributes power to each of the modules within the chassis.
ControlLogix Standard Chassis
Specifications [PDF]
| Cat. No. | Description | Slots |
| 1756-A4 | ControlLogix standard chassis | 4 |
| 1756-A7 | 7 | |
| 1756-A10 | 10 | |
| 1756-A13 | 13 | |
| 1756-A17 | 17 |
ControlLogix-XT Chassis
The ControlLogix-XT products include control and communication system components that, when used with FLEX I/O-XT products, provide a complete control system solution that can be used in environments where temperatures range from ‑20...70 °C (‑4...158 °F).
When used independently, the ControlLogix-XT system can withstand environments where the temperature ranges from ‑25...70 °C (‑13...158 °F).
ControlLogix-XT Chassis
Specifications [PDF]
| Cat. No. | Description | Slots |
| 1756-A5XT | ControlLogix-XT chassis | 5 |
| 1756-A7LXT | 7 |
Accessories—Chassis
Slot Filler Modules
Use a slot filler module to fill empty slots.
| Cat. No. | Description |
| 1756-N2 | Slot filler module for empty slots in standard ControlLogix chassis |
| 1756-N2XT | Slot filler module for empty slots in ControlLogix-XT chassis |