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- Allen Bradley
- 1768-L43S
- Compact GuardLogix Security Processor
- USA
- 131.6 x 90 x 121.8 mm
- 0.45 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Allen Bradley 1768-L43S is a Compact GuardLogix Security Processor designed for high-performance, safety-integrated industrial automation applications. It combines standard CompactLogix controller functionality with advanced safety and security features, allowing safe and reliable operation of critical machinery. This processor is ideal for environments where safety, security, and high-speed control must coexist in a single automation platform.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model Number | 1768-L43S |
| Product Type | Compact GuardLogix Security Processor |
| Function | Safety and standard control processing |
| Dimensions (L x W x H) | 131.6 × 90 × 121.8 mm |
| Weight | 0.45 kg |
| Processor Type | GuardLogix Security Processor |
| Communication Protocol | EtherNet/IP, ControlNet |
| Memory Capacity | Standard controller memory + safety memory |
| Status Indicators | LEDs for processor, communication, and safety status |
| Power Supply | 24 V DC |
| Environment | Industrial-grade |
| Safety Standards | Complies with SIL 3 / PL e (as applicable) |
Function and Working Principle
The 1768-L43S processor combines standard automation and safety logic in a single platform. Its primary functionalities include:
- Executes standard control and safety logic simultaneously
- Supports GuardLogix safety routines for machinery protection
- Provides secure communication via EtherNet/IP and ControlNet
- Monitors system health and status through integrated LEDs
- Enhances operational reliability while ensuring personnel safety
By integrating standard and safety control, it allows efficient, safe, and scalable automation network operation.
Role in Industrial Control Systems
The 1768-L43S is critical in safety-integrated control architectures:
- Manages standard control operations for machinery and processes
- Executes safety routines to meet functional safety standards
- Monitors inputs, outputs, and safety events in real-time
- Facilitates secure integration with CompactLogix and GuardLogix networks
Industrial Applications
The Allen Bradley 1768-L43S is commonly used in:
- Manufacturing automation requiring integrated safety
- Robotics and automated machinery
- Packaging, material handling, and assembly lines
- Process automation in chemical, pharmaceutical, and food industries
- Critical industrial systems where SIL/PL compliance is required
Its industrial-grade construction ensures reliable operation in demanding environments.
Installation and System Integration
For optimal performance:
- Mount in control cabinets according to system layout
- Provide 24 V DC power supply per specifications
- Connect to EtherNet/IP or ControlNet networks for communication
- Configure using Studio 5000 / RSLogix 5000 with GuardLogix safety routines
- Monitor processor and network status using built-in LEDs
Proper installation ensures high-speed control, integrated safety, and system reliability.
Compatible System Components
The 1768-L43S works seamlessly with:
- Guard I/O modules for safety inputs and outputs
- Standard CompactLogix I/O modules
- EtherNet/IP and ControlNet communication modules
- Human-machine interfaces (HMIs) and SCADA systems
- Safety relays, actuators, and sensors
Together, these components create a secure, scalable, and reliable automation network.
Recommended Alternative Models
| Model Number | Type | Key Feature / Advantage | Application |
|---|---|---|---|
| 1768-L43S | GuardLogix Security Processor | Integrated safety and control | Safety-critical automation |
| 1768-L45S | GuardLogix Security Processor | Higher performance and expanded memory | Complex safety applications |
| 1768-L42B | Compact GuardLogix Processor | Standard GuardLogix safety features | Small to medium automation |
| 1768-L4x | CompactLogix Controller | Standard automation control | Non-safety applications |
Key Advantages
- Combines standard control and integrated safety logic in a single processor
- Provides secure, high-speed communication via EtherNet/IP and ControlNet
- Monitors system health and safety status in real-time
- Compliant with SIL/PL safety standards for critical applications
- Industrial-grade design suitable for continuous operation
Technical FAQs
Q1: What is the main function of the 1768-L43S?
A1: It is a Compact GuardLogix processor that executes standard automation logic along with integrated safety routines for critical industrial applications.
Q2: Does it support functional safety standards?
A2: Yes, it supports SIL 3 / PL e (as applicable) safety compliance for industrial machinery.
Q3: Can it communicate with standard CompactLogix modules?
A3: Yes, it integrates seamlessly with CompactLogix I/O and GuardLogix safety I/O modules.
Conclusion
The Allen Bradley 1768-L43S Compact GuardLogix Security Processor is essential for industrial automation systems that require integrated safety and high-performance control. Its combination of standard logic, safety routines, and secure communication makes it ideal for critical applications, ensuring both operational efficiency and personnel safety.