Brand:Allen Bradley PLC Item No.:1785-L40C15/F Product Origin:USA Product Dimensions:165 x 51 x 89 mm Product Weight:1.42 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
The Allen-Bradley 1785-L40C15/F PLC-5/40C Processor is a high-capacity industrial control module within the PLC-5 family, designed for complex automation systems requiring reliable, deterministic performance. It serves as the central processing unit for 1771 chassis-based I/O systems, coordinating large-scale machine and process operations with precision scan-based logic execution.
Technical Specifications
Parameter
Details
Product Model
1785-L40C15/F
Series
PLC-5/40C
Type
Chassis-Based PLC Processor
Memory Capacity
48K Word User Memory (typical PLC-5/40 class)
Communication Ports
DH+, Remote I/O, Serial (system dependent)
Programming Software
RSLogix 5
I/O Capacity
Up to 2048 points (system dependent configuration)
Backplane Current Load
Approx. 3.3 A @ 5V DC
Chassis Compatibility
1771 Series I/O Chassis
Power Supply
Backplane powered
Operating Temperature
0°C to 60°C
Dimensions
165 × 51 × 89 mm
Weight
1.42 kg
Recommended Related Models
Model
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1785-L40E
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1785-L80B
PLC-5/80 High-End Processor Module
Popular Related Models
Model
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Applications
• High-performance PLC-5 control in large-scale discrete manufacturing systems
• Data Highway Plus (DH+) and Remote I/O-based plant-wide automation networks
• Complex machine coordination in automotive, packaging, and material handling lines
• Distributed control architectures requiring deterministic scan-based execution
• Process control in heavy industrial environments such as oil, gas, and utilities
• Brownfield system upgrades where PLC-5/40C replaces earlier PLC-5 processors
• High-density I/O management for multi-chassis industrial control systems
Key Advantages
• Enhanced PLC-5/40C processing power for large and complex automation tasks
• Stable deterministic scan cycle ensuring predictable industrial control performance
• Multiple integrated communication options supporting DH+ and Remote I/O networks
• High I/O capacity suitable for large distributed control systems
• Rugged industrial design optimized for vibration, EMI, and harsh factory conditions
• Strong compatibility with Rockwell Automation PLC-5 ecosystem and legacy infrastructure
• Long lifecycle reliability ideal for critical installed-base systems
Technical FAQs
1. What is the main function of the 1785-L40C15/F?
It is a PLC-5 processor used for industrial automation control and system coordination.
2. What communication networks does it support?
It supports Data Highway Plus (DH+) and Remote I/O communication.
3. Is it suitable for large I/O systems?
Yes, it is designed for high-capacity, multi-chassis I/O architectures.
4. Does it support Ethernet communication directly?
No, Ethernet requires external communication modules.
5. What programming software is used?
RSLogix 5 is typically used for programming PLC-5 processors.
6. Can it operate in redundant systems?
Yes, redundancy can be achieved through additional PLC-5 system modules.
7. What type of control does it provide?
It provides deterministic scan-based control for industrial processes.
8. Is it still used in modern automation systems?
It is mainly used in legacy systems and installed-base maintenance.
9. Does it support remote I/O expansion?
Yes, it fully supports Remote I/O architecture expansion.
10. What industries typically use this processor?
Automotive, heavy manufacturing, energy, and process industries.
