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Allen Bradley 1785-LT3 PLC-5 Processor Module

Allen Bradley 1785-LT3 PLC-5 Processor Module

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Brand:Allen Bradley PLC
Item No.:Allen Bradley 1785-LT3
Product Origin: USA
Product Dimensions:280 × 50 × 160 mm
Product Weight:1.39 kg
Payment:T/T, Western Union, Credit Card
Goods_stock:15
Shipping Port:Xiamen, China
Lead Time:1-3 Days
Condition:Brand New And Original
Warranty:1 Year
Certificate:COO

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1785-LT3-31785-LT3-11785-LT3-41785-LT3-2

The Allen Bradley 1785-LT3 PLC-5 Processor Module is built to provide reliable and efficient automation control for industrial environments requiring stable processing performance and dependable communication capability. As part of the trusted PLC-5 controller series, this processor is widely used in manufacturing facilities, process control systems, and infrastructure automation projects where long-term operational reliability is essential.

Designed for demanding industrial applications, the 1785-LT3 supports distributed control architectures and seamless integration with existing PLC-5 systems. Its durable hardware structure and proven performance make it an excellent solution for maintaining legacy automation networks while supporting system expansion and modernization requirements.


Technical Specification Summary

ItemSpecification
ManufacturerAllen Bradley
Model Number1785-LT3
Product FamilyPLC-5
Module TypePLC Processor Module
Controller PlatformPLC-5 Processor
Communication InterfacesDH+, Remote I/O, Serial Communication
Supported ProtocolsDF1, DH+, Remote I/O
Memory TypeBattery-Backed SRAM
Programming SoftwareRSLogix 5
Installation TypeChassis Mount
Power DissipationApprox. 12 W
Backplane CurrentApprox. 2.3 A
Expansion SupportCompatible with EEPROM Modules
Operating EnvironmentIndustrial Automation Systems
System ArchitectureDistributed Industrial Control

Mechanical Information

Physical PropertyDetails
Overall Dimensions (L × W × H)Approx. 280 × 50 × 160 mm
Net WeightApprox. 1.39 kg

Recommended Related Models

The 1785-LT3 processor is commonly integrated with Allen Bradley communication modules, memory expansion units, and distributed I/O systems for enhanced automation performance.

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Typical Application Industries

The Allen Bradley 1785-LT3 processor is designed for industrial sectors that require dependable automation control and long operational lifecycle performance.

Typical applications include:

  • Automotive production systems
  • Water and wastewater treatment facilities
  • Material handling and conveyor systems
  • Oil and gas processing operations
  • Mining automation equipment
  • Food and beverage manufacturing
  • Packaging and labeling machinery
  • Utility management systems
  • Chemical processing plants
  • Factory retrofit and modernization projects

Its compatibility with distributed industrial architectures makes it especially suitable for facilities operating complex automation networks.


Core Product Advantages

Reliable Continuous Operation

The 1785-LT3 is engineered for stable long-term performance in demanding industrial environments where minimizing downtime is critical.

Flexible Communication Capability

Support for DH+, DF1, and Remote I/O protocols allows efficient integration into existing PLC-5 control infrastructures.

Excellent Legacy System Compatibility

The processor helps facilities maintain and expand established PLC-5 automation systems without requiring full platform replacement.

Scalable Automation Architecture

Compatibility with multiple I/O and communication expansion modules provides flexibility for future system growth.

Secure Memory Retention

Battery-backed SRAM protects operational programs and application data during unexpected power interruptions.


Technical FAQs

1. What is the Allen Bradley 1785-LT3 used for?

The 1785-LT3 is an industrial PLC-5 processor module used for factory automation and process control applications.


2. Which communication protocols are supported?

The module supports DH+, DF1 serial communication, and Remote I/O protocols.


3. Is the processor compatible with PLC-5 systems?

Yes. The 1785-LT3 is specifically designed for Allen Bradley PLC-5 automation platforms.


4. What programming software is used with this processor?

RSLogix 5 software is commonly used for programming and configuration.


5. Can the processor support distributed I/O systems?

Yes. The module is compatible with distributed Remote I/O architectures.


6. Does the processor retain memory during power outages?

Yes. Battery-backed SRAM preserves user applications and operational parameters during power loss.


7. What industries commonly use the 1785-LT3?

Industries including manufacturing, mining, utilities, oil & gas, and water treatment frequently deploy PLC-5 processors.


8. Is the module suitable for industrial modernization projects?

Yes. The processor is widely used in retrofit and legacy automation upgrade applications.


9. Can memory capacity be expanded?

Yes. The module supports compatible EEPROM memory expansion units.


10. Why is the 1785-LT3 still widely used in industrial automation?

Its proven reliability, durable industrial design, and compatibility with long-established PLC-5 infrastructures continue to make it highly valuable for mission-critical automation systems.


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