2025/10/13 859-304, Sales records with pictures and video
Direct answer: The 859-304 is a robust industrial PLC that combines high-performance processing, flexible I/O, multi‑protocol communications and an IEC 61131-3–friendly programming environment to deliver reliable automation control in demanding industrial settings.
859-304 PLC — Product Overview
The 859-304 is part of a family of programmable logic controllers designed for industrial automation and control. It targets OEMs, system integrators and plant engineers who require dependable control hardware that integrates easily with existing infrastructure and supports modern communication protocols.
Core features
- High-performance processing capabilities for real-time control
- Flexible digital and analog input/output options
- Support for Ethernet/IP, Modbus and Profibus communications
- Robust mechanical and thermal design for industrial environments
- User-friendly programming interface supporting ladder logic, structured text and function block diagrams (IEC 61131-3 languages)
Typical application scenarios
- Automating assembly lines in manufacturing
- Controlling temperature and pressure in process industries
- Managing lighting, access and HVAC systems in commercial buildings
- Monitoring and controlling water and wastewater treatment facilities
Image gallery
Note: No video file was provided for this product.
Key data and comparison
The table below summarizes the 859-304 technical parameters and compares them with typical entry-level and high-end PLC categories to help you quickly evaluate fit for your project.
| Specification | 859-304 | Typical entry-level PLC | Typical high-end PLC |
|---|---|---|---|
| Supply voltage | 24 V DC | 24 V DC | 24 V DC (some models 24–48 V DC) |
| Operating temperature | -20 to 70 °C | 0 to 55 °C | -40 to 85 °C |
| Input/Output | Digital and Analog I/O (flexible configuration) | Mostly digital I/O, limited analog | Extensive digital/analog and high-density I/O options |
| Communication protocols | EtherNet/IP, Modbus, Profibus | Modbus RTU/TCP, basic Ethernet | EtherNet/IP, Profinet, Modbus, OPC UA, redundant networks |
| Program memory | 1 MB program memory | 128–512 KB | Several MB to tens of MB |
| Programming languages | Ladder, Structured Text, Function Block Diagram (IEC 61131-3) | Ladder, basic function blocks | Full IEC 61131-3 suite + advanced toolchains |
| Typical use cases | Mid-range machine control, integrated plant control | Small machines, basic automation tasks | Large distributed systems, process control at scale |
Technical specifications (concise)
- Model: 859-304
- Voltage: 24 V DC
- Operating temperature: -20 to 70 °C
- Input range: Digital and Analog I/O
- Communication protocols: Ethernet/IP, Modbus, Profibus
- Memory capacity: 1 MB program memory
- Programming: Ladder logic, Structured Text, Function Block Diagrams (IEC 61131-3)
FAQ
- What is the typical lifespan of the 859-304?
- With proper installation and maintenance, the 859-304 can last for several years, typically around 10–15 years.
- Can the 859-304 be integrated with existing systems?
- Yes — it supports multiple communication protocols (EtherNet/IP, Modbus, Profibus) allowing for straightforward integration with many existing control and SCADA systems.
- What kind of programming languages are supported?
- The 859-304 supports ladder logic, structured text, and function block diagrams (IEC 61131-3 languages), enabling developers and engineers to use industry-standard programming models.
Quote
"Programmable Logic Controllers are essential in modern automated systems, enhancing efficiencies and streamlining operations." — Industrial Automation Journal
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External citations and trust signals
- IEC 61131-3 (programming languages for PLCs): ISO/IEC standards and references
- EtherNet/IP (ODVA): https://www.odva.org
- Modbus Organization: http://www.modbus.org
- PROFIBUS & PROFINET International: https://www.profibus.com
- Industry reference: Industrial Automation Journal (quote source)
Trust signals and integration notes: The 859-304 supports IEC 61131-3 languages, common industrial field protocols and flexible I/O configurations that simplify integration with SCADA, HMI and MES layers. For mission-critical deployments, consult with your systems integrator about redundancy, backup strategies and environmental certifications required for your installation.
Next steps
If you would like a datasheet, configuration guide, or help evaluating the 859-304 for your application, contact your sales representative or technical support team with the model number 859-304 and your application details (I/O counts, required protocols, operating environment).
