Product Overview
The 1785-ME64/A is a high-performance processor module from Allen-Bradley, serving as a core component of the PLC-5 series—a staple in industrial automation for decades. Designed to handle complex control tasks, this module acts as the “brain” of automation systems, executing logic programs, processing input data, and generating output commands to regulate industrial processes. The 1785-ME64/A stands out for its 64K words of user memory, which provides ample space for sophisticated control algorithms, making it ideal for medium to large-scale applications such as manufacturing lines, material handling systems, and process control environments.
In an automation setup, the 1785-ME64/A integrates seamlessly with other PLC-5 modules, including I/O units and communication interfaces, to create a unified control system. Its reliability and processing speed ensure consistent performance even in demanding industrial conditions, minimizing downtime and optimizing operational efficiency. Hainan Jinlin Electromechanical Equipment Co., Ltd, as a trusted distributor, offers the 1785-ME64/A with expert pre-sales support to help clients assess compatibility and integration needs, along with a one-year after-sales guarantee. For inquiries or to source this model, contact us via [WhatsApp](https://wa.me/+86 19389860630) or email at jllucky33@qq.com.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 1785-ME64/A |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Type | PLC Processor Module |
| User Memory | 64K words |
| Execution Speed | 0.8 microseconds per boolean instruction |
| Communication Ports | 1 x RS-232 (channel 0), 1 x DH+ (channel 1) |
| Power Requirements | 5V DC @ 1.2A (from backplane) |
| Operating Temperature | 0°C to 60°C |
| Dimensions (HxWxD) | 11.4cm x 3.2cm x 16.5cm |
| Weight | 0.45kg |
| Compatibility | PLC-5 series chassis and I/O modules |
Key Features and Benefits
The 1785-ME64/A delivers robust performance through its 64K user memory, enabling it to handle complex control logic without compromising speed. This memory capacity supports extensive ladder logic programs, data tables, and diagnostic routines, making it suitable for applications requiring multi-step process control—such as batch processing in chemical plants or synchronized motion control in automotive assembly lines.
With an execution speed of 0.8 microseconds per boolean instruction, the 1785-ME64/A ensures rapid response to input signals, critical for time-sensitive processes. This speed minimizes latency between sensor inputs and actuator outputs, enhancing overall system precision. For example, in a packaging line, the module can quickly adjust conveyor speeds based on product detection, reducing waste and improving throughput.
Dual communication ports—RS-232 for programming and device integration, and DH+ (Data Highway Plus) for networked communication—make the 1785-ME64/A highly versatile. The DH+ port enables seamless connectivity with other PLCs, HMIs, and SCADA systems, facilitating centralized monitoring and control. This interoperability simplifies system expansion, allowing users to scale operations without overhauling the core control infrastructure.
Built to withstand industrial environments, the 1785-ME64/A operates reliably across a wide temperature range (0°C to 60°C) and integrates with the rugged PLC-5 chassis, ensuring durability in dusty, vibration-prone settings. Its backplane power design eliminates the need for external power supplies, streamlining installation and reducing potential failure points.
Related Models
- 1785-ME32/A: A lower-memory variant with 32K words, suitable for smaller applications where the 64K capacity of the 1785-ME64/A is unnecessary.
- 1785-LT/A: A compact PLC-5 processor with reduced memory and I/O capacity, ideal for simple control tasks as a more cost-effective alternative to the 1785-ME64/A.
- 1785-ME160/A: A higher-capacity model with 160K words of user memory, offering expanded capability for large-scale systems requiring more complex logic than the 1785-ME64/A.
- 1785-BCM: A communication module that enhances the 1785-ME64/A by adding Ethernet connectivity, enabling integration with modern network protocols.
- 1785-MH/A: A high-performance processor with faster execution speeds, designed for time-critical applications where the 1785-ME64/A’s processing rate may be insufficient.
- 1785-OA16: An output module compatible with the 1785-ME64/A, providing 16 discrete outputs to control actuators, valves, and other devices in the system.
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