Brand:Allen Bradley PLC Item No.:Allen Bradley 1785-L80B Product Origin: USA Product Dimensions:280 × 50 × 160 mm Product Weight:1.36 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-L80B PLC-5 Processor Module was engineered for high-capacity industrial automation environments where reliability, communication flexibility, and long-term operational stability are critical. Designed as part of the legendary PLC-5 platform, this processor continues to be widely trusted in manufacturing plants, water treatment facilities, power systems, and large-scale process automation networks.
Built with advanced memory architecture and robust communication support, the 1785-L80B offers exceptional performance for complex control strategies and distributed I/O applications. Even in demanding legacy modernization projects, this processor remains a dependable solution for maintaining uptime and protecting existing infrastructure investments.
Core Technical Data
Parameter
Specification
Manufacturer
Allen Bradley
Model Number
1785-L80B
Product Series
PLC-5 Enhanced
Module Type
PLC Processor Module
User Memory
100K Words
Maximum I/O Capacity
3072 I/O Points
Communication Ports
4 DH+/Remote I/O Channels
Serial Interface
RS-232 / RS-422A / RS-423
Supported Protocols
DF1, DH+, Remote I/O, ASCII
Backplane Current
2.3 A
Power Dissipation
12 W
Maximum I/O Chassis
93 Chassis
Processor Type
PLC-5/80
Memory Backup
Battery-Backed SRAM
Redundancy Support
Yes
Mounting Style
Chassis Mount
Operating Environment
Industrial Automation Systems
Physical Dimensions & Weight
Item
Value
Height
Approx. 160 mm
Width
Approx. 280 mm
Depth
Approx. 50 mm
Weight
Approx. 1.36 kg
Compatible & Recommended Related Models
The 1785-L80B is frequently integrated with several complementary Allen Bradley automation components to create scalable and highly stable industrial control systems.
Related Model
Description
1785-L40B
PLC-5 Processor Module
1785-L60B
Enhanced PLC-5 Controller
1785-ME32
EEPROM Memory Expansion Module
1785-ME64
Extended Memory Module
1771-ASB
Remote I/O Adapter Module
1785-ENET
Ethernet Communication Module
1771-OBD
Digital Output Module
1771-IBN
Digital Input Module
1771-IFE
Analog Input Module
1770-XYC
Backup Battery
Widely Used Allen Bradley Automation Models
Allen Bradley continues to lead industrial automation with a broad range of reliable controllers, communication systems, and power solutions trusted worldwide.
Popular Model
Product Category
1756-L83E
ControlLogix Controller
1769-L33ER
CompactLogix Controller
5069-L310ER
CompactLogix 5380 Controller
2711P-T10C4D8
PanelView Plus HMI
1734-AENT
POINT I/O Ethernet Adapter
20-COMM-E
PowerFlex Ethernet Adapter
25B-D017N104
PowerFlex 525 AC Drive
1606-XLS480E
Industrial Power Supply
1794-IE8
FLEX I/O Analog Module
1756-EN2TR
Ethernet Communication Module
Industrial Applications
The Allen Bradley 1785-L80B remains a preferred processor for facilities requiring dependable long-cycle automation performance and extensive remote communication capability.
Typical applications include:
Automotive production systems
Oil & gas process control
Water and wastewater treatment plants
Heavy material handling systems
Mining automation infrastructure
Pulp and paper manufacturing
Chemical processing lines
Food and beverage production
Packaging and conveyor systems
Utility and energy management systems
Its ability to support large I/O architectures and multiple communication networks makes it especially valuable in facilities operating mixed legacy and modern automation environments.
Operational Advantages
High-Capacity Control Performance
With support for up to 3072 I/O points, the 1785-L80B is ideal for complex automation tasks requiring large-scale control integration and stable processor execution.
Flexible Network Communication
The built-in DH+ and Remote I/O communication channels allow seamless integration with distributed industrial networks, helping reduce system bottlenecks and improve plant-wide connectivity.
Proven Industrial Reliability
The PLC-5 platform has earned a reputation for long operational life in mission-critical environments where system downtime can result in major production losses.
Easy Legacy System Expansion
For facilities upgrading existing PLC-5 systems, the 1785-L80B provides a practical and cost-effective expansion path without requiring complete infrastructure replacement.
Strong Memory Architecture
Battery-backed SRAM and optional EEPROM expansion modules help preserve critical application programs and operational data during unexpected power interruptions.
Technical Questions & Answers
1. What type of processor is the 1785-L80B?
The 1785-L80B is a PLC-5/80 enhanced programmable logic controller processor designed for advanced industrial automation systems.
2. How many I/O points can this module support?
The processor supports up to 3072 total I/O points depending on the system configuration.
3. Does the 1785-L80B support remote I/O communication?
Yes. It includes four built-in DH+/Remote I/O communication channels for distributed automation architectures.
4. Is this processor still used in industrial facilities?
Absolutely. Many industrial plants continue operating PLC-5 systems due to their proven stability, reliability, and long equipment lifecycle.
5. What programming software is compatible with the module?
The module is commonly configured and programmed using RSLogix 5 software environments.
6. Does the processor support redundancy?
Yes. The 1785-L80B supports controller redundancy configurations for higher system availability.
7. What communication protocols are supported?
Supported protocols include DH+, DF1, ASCII, and Remote I/O communication standards.
8. Can memory capacity be expanded?
Yes. Optional EEPROM expansion modules such as the 1785-ME32 and 1785-ME64 can increase memory capabilities.
9. What industries commonly use PLC-5 processors?
Industries including manufacturing, utilities, oil & gas, water treatment, mining, and process automation frequently utilize PLC-5 controllers.
10. Why is the 1785-L80B still valued today?
Its long-term reliability, extensive communication support, and compatibility with legacy automation infrastructure continue to make it highly valuable in industrial operations worldwide.
