Product Overview

The 1768-L43S belongs to the Compact GuardLogix product line. Its product type is a Controller Module. The product classification is Controllers & CPUs. The current price for this item is ¥18,500 RMB, and the product gross weight is 0.45 kg (15.9 oz) .

Rockwell Automation designed this controller under the Allen-Bradley brand for safety-critical applications. The 1768-L43S features 2.0 MB standard memory and an additional 0.5 MB safety memory . This controller provides unmatched scalability and flexibility across applications. It supports EtherNet/IP and ControlNet networks for flexible integration. Additionally, the module offers security controls and fully-integrated motion capabilities. Consequently, this controller suits applications requiring both standard and safety control in a compact form factor.

Technical Specifications

Memory and Processing

The 1768-L43S provides 2.0 MB of standard memory for user programs and data. Additionally, it includes 0.5 MB of safety memory for safety-related functions. This memory configuration supports both standard and safety tasks simultaneously. Therefore, the controller handles complex applications with integrated safety requirements.

Power and Thermal Ratings

The backplane current draw at 24 Volts is 1.4 Amps . Power consumption reaches 33.6 Watts . Power dissipation ranges from 4 to 7.5 Watts . This moderate power dissipation allows installation in standard control cabinets. Ensure adequate ventilation around the controller for reliable operation.

Isolation Voltage

The isolation voltage rating is 30 Volts continuous . This isolation protects the controller from field wiring faults. For specific isolation testing details, consult the product manual.

Temperature and Environmental Ratings

The operating temperature range spans 0 to 60°C . For storage, the range extends from -4 to 85°C . Relative humidity tolerance reaches 5 to 95% non-condensing . Thus, the 1768-L43S operates reliably in typical industrial environments.

Vibration and Shock Tolerance

Vibration tolerance reaches 5 g at a frequency of 10 to 500 Hertz . Operating shock tolerance is 30 g . Non-operating shock tolerance is 50 g . This rugged construction suits demanding industrial machinery applications.

EMC Immunity

The radiated RF immunity reaches 10 V/m with 1 kHz sine-wave 80% AM from 80 to 2000 MHz . Consequently, the 1768-L43S withstands electromagnetic interference from nearby radio transmitters and variable frequency drives.

Dimensions

The dimensions measure 5.18 inches (H) x 3.55 inches (W) x 4.8 inches (D) . This compact form factor suits space-constrained control panels.

Series Information

The 1768-L43S is available in Series A and Series B versions. Check your module label to identify the series version. Consult the product documentation for series-specific differences.

Installation Guide

Follow these steps to install your 1768-L43S correctly.

1. Power Down the System: Disconnect power from the chassis and any connected serial devices. This prevents electrical arcing that may occur when connecting or disconnecting cables with power applied.

2. Select a Slot: Choose an available slot in the CompactLogix chassis. The 1768-L43S occupies one slot.

3. Insert the Module: Align the 1768-L43S with the slot guides. Push firmly until the module seats into the backplane connector.

4. Secure the Module: Tighten the retaining screws at the top and bottom. This secures the controller module in place.

5. Connect Network Cables: Attach your EtherNet/IP or ControlNet cables to the appropriate ports. Ensure proper termination for network segments.

6. Apply Power: Restore power to the chassis. Verify that the controller powers up without errors.

7. Download User Program: Transfer your standard and safety programs to the 2.0 MB standard memory and 0.5 MB safety memory . Use RSLogix 5000 or Studio 5000 programming software.

8. Verify Safety Functions: Test all safety-related functions to confirm proper operation. Validate the safety memory integrity.

Package List

• 1 x 1768-L43S Compact GuardLogix Controller

• 1 x Module retaining screws set (pre-installed)

• 1 x Installation instruction manual

Note: Programming software, network cables, and additional communication modules are sold separately.

Frequently Asked Questions (FAQ)

1. What is the memory configuration of the 1768-L43S ?
The controller provides 2.0 MB of standard memory and 0.5 MB of safety memory . For standard applications, use the 2.0 MB memory. For safety tasks, use the dedicated 0.5 MB safety memory.

2. What networks does this controller support?
The 1768-L43S supports EtherNet/IP and ControlNet networks. For EtherNet/IP, use standard Ethernet cables. For ControlNet, use coax cables with proper termination. This flexibility allows integration with various industrial networks.

3. What is the power dissipation of this module?
Power dissipation ranges from 4 to 7.5 Watts . The exact value depends on the specific load and configuration. Ensure adequate cabinet ventilation for reliable operation.

4. Why must I remove power before connecting serial cables?
Connecting or disconnecting serial cables with power applied can cause an electric arc . This arc may damage the serial port or cause personal injury. Therefore, always remove power before connecting or disconnecting serial cables.

5. Is this a standard controller or a safety controller?
The 1768-L43S is a Compact GuardLogix safety controller . It includes both standard and safety memory. Therefore, it handles both standard control tasks and safety functions within a single controller. This integration reduces system complexity.