The 1756-L75K is a ControlLogix 5570 series controller from Rockwell Automation's Allen-Bradley brand. The "K" suffix at the end of the model name indicates a conformal coating, protecting the circuit board from contamination and moisture, making it suitable for harsh industrial environments.
This controller is a high-end model in the series, equipped with 32 MB of user memory and 0.98 MB of I/O memory, capable of handling large amounts of data and complex control logic. It supports multitasking, allowing up to 32 controller tasks to be downloaded, each containing up to 100 programs, and is compatible with various industrial communication networks.
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Core Features
- ✓ Large-Capacity Memory Processing: Provides 32 MB of user memory + 0.98 MB of I/O memory, supporting 128,000 digital I/O points and 4,000 analog I/O points, suitable for large and complex control systems.
- ✓ Conformal Coating Protection: Models with the K suffix feature a conformal coating, protecting the controller in harsh environments such as humidity and corrosive gases, extending product lifespan.
- ✓ Multi-Task Parallel Processing: Supports up to 32 controller tasks, each containing up to 100 programs, enabling efficient execution of complex control logic.
- ✓ Multiple Communication Network Support: Compatible with various industrial networks such as EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, and SynchLink, meeting communication needs in different scenarios.
Technical Specifications
| Brand |
Allen Bradley
|
| Model / Part Number |
1756-L75K |
| User Memory |
32 MB |
| I/O Memory |
0.98 MB |
| Maximum Digital I/O |
128,000 points |
| Maximum Analog I/O |
4,000 points |
| Power Consumption |
2.5 Watts |
| Communication Port |
USB 2.0 (12 Mbps) |
| Special Protection |
Conformal Coating (K suffix) |
| Dimensions (HxWxD) |
5.512 x 17.805 x 22.2 cm (approx.) |
Frequently Asked Questions
Q: What scenarios is the 1756-L75K suitable for?
A: It is suitable for large-scale industrial control systems that require processing large amounts of data and complex control logic, such as large production lines, process automation, and infrastructure control.
Q: What is the difference between controllers with the "K" suffix and regular models?
A: The "K" suffix indicates that the controller has a conformal coating, which protects the circuit board in harsh environments such as humidity, corrosive gases, and dust, extending product life. Controllers without the "K" suffix are standard models and are suitable for general industrial environments.
Q: In which chassis can the 1756-L75K be installed?
A: It can be installed in any slot of standard ControlLogix chassis (such as 1756-A7, 1756-A10, 1756-A13, 1756-A17, etc.), supporting the installation of multiple controllers in the same chassis.
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