Excellent PLC
Product Introduction
The Allen Bradley 1785-LT PLC-5/15 Processor is an entry-level programmable logic controller designed for small to medium industrial automation applications. Part of the PLC-5 family, the 1785-LT offers reliable processing performance for managing modest I/O configurations and simple control logic in manufacturing and process systems.
The processor provides 6 K words of SRAM memory, allowing storage of control programs and data for small-scale automation tasks. It supports Data Highway (DH) and Remote I/O (RIO) communication channels, enabling connection with other PLC-5 modules and remote I/O racks for distributed control.
With a compact rack-mounted design, the 1785-LT is suitable for installation in standard PLC-5 racks and integrates seamlessly with Allen Bradley digital and analog I/O modules. Its design ensures stable operation under typical industrial conditions and supports small-scale automation systems where reliable and cost-effective control is required.
The processor draws 2.5 A at 5 VDC from the backplane, making it energy-efficient while providing sufficient power for processing and communication tasks.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | PLC Processor Module |
| Manufacturer | Allen Bradley |
| Model Number | 1785-LT |
| Controller Series | PLC-5 |
| Processor Type | PLC-5/15 Entry-Level Processor |
| User Memory | 6 K Word SRAM |
| Communication Channels | DH / RIO |
| Backplane Current | 2.5 A at 5 VDC |
| Maximum Total I/O | Small-scale systems (typical) |
| Installation Type | Rack-mounted PLC module |
| System Compatibility | PLC-5 I/O and communication modules |
| Application | Small to medium industrial automation systems |
| Control Capability | Standard PLC-5 logic processing |
| Operating Environment | Industrial automation applications |
| Dimensions | 165 × 51 × 89 mm |
| Weight | 1.339 kg |
Applications
● Small Manufacturing Automation
Controls production lines with modest I/O requirements and simple logic operations.
● Process Control in Small Facilities
Manages small-scale process systems, including pumps, conveyors, and mixers.
● Distributed I/O Systems
Supports connection to remote I/O racks for distributed control in limited areas.
● Machine Control
Operates individual machines or subsystems requiring PLC-5 logic control.
● Entry-Level Automation Systems
Provides reliable control for applications where advanced processing is not required.
● Industrial Equipment Monitoring
Interfaces with digital and analog sensors for basic monitoring tasks.
Advantages
● Compact and Reliable
Small form factor suitable for rack-mounted PLC-5 systems with stable industrial operation.
● Low Power Consumption
Draws only 2.5 A at 5 VDC from the backplane, making it energy-efficient.
● Entry-Level PLC-5 Control
Provides basic PLC-5 processing capabilities for small automation applications.
● Supports DH/RIO Communication
Enables connection to Data Highway and Remote I/O networks for distributed control.
● Flexible System Integration
Compatible with a range of PLC-5 digital and analog I/O modules.
● Cost-Effective Automation Solution
Ideal for smaller systems where budget and simplicity are priorities.
