| Product | Siemens Simatic 6ES7 321-1BH02-0AA0 Digital Input Module |
|---|---|
| Manufacturer | Siemens AG |
| Type | Digital Input Module |
| Series | Simatic S7-300 |
| Model Number | 321-1BH02-0AA0 |
| Reference Number | Mak. Ref: 6ES7 321-1BH02-0AA0 |
| Alternative Code | 1P 6ES7 321-1BH02-0AA0 |
| Compatibility | KCC-REM-S49-S7300 |
| Explosion Protection | II 3 G Ex Na IIC T4 GC |
| ATEX Certification | Dekra 13ATEX0015X |
| IECEx Certification | IECEx DEK 14.0042X |
| Class I Divisions | Cl.I, Div.2, Gp. A,B,C,D T4 |
| Class I Zones | Cl.I, Zone 2, Gp.IIC, T4 |
| Channel Configuration | At 40°C: 16 Channels Vertically Mounted At 60°C: 16 Channels Horizontally Mounted |
| Model Family | SM321 |
| FS | 6 |
| Operating Temperature | Ta: 0°C…+60°C |
| Other Codes | 720 20 56-01, 720 2001-01 |
| Origin | Made in Germany |
| Weight | 250 Gm |
| Ref No | 74443 |
What is the Siemens 6ES7 321-1BH02-0AA0?
The 6ES7 321-1BH02-0AA0 is a digital input module that functions as part of the SIMATIC S7-300 series. It features 32 digital inputs, allowing for real-time monitoring and control of industrial processes. With a compact design and robust build, it is ideal for harsh industrial environments, ensuring accurate signal detection and processing. This module supports various digital sensors, making it suitable for diverse applications in manufacturing, processing plants and other industrial sectors.
Key Features
- High Input Count: With 32 digital inputs, this module can handle multiple signal sources simultaneously, making it a great choice for complex automation tasks.
- Reliable Signal Processing: It offers fast and reliable signal detection, ensuring real-time data capture and analysis for improved decision-making.
- Compatibility: As part of the SIMATIC S7-300 series, it is compatible with other modules and devices in the Siemens automation ecosystem.
- Compact and Durable: The module is built for rugged environments, ensuring durability and consistent performance under challenging conditions.
- Easy Integration: It is designed for easy installation and integration within existing control systems, reducing setup time and complexity.
Applications of Siemens 6ES7 321-1BH02-0AA0
This digital input module is used in a variety of applications across industries:
- Manufacturing Automation: In assembly lines and production units, it enables accurate signal monitoring, improving process efficiency and reducing downtime.
- Process Control: In industries like oil, gas and chemicals, it aids in monitoring critical processes, ensuring safety and operational continuity.
- Building Automation: It is used in HVAC systems, lighting control, and other building management applications to automate various systems for energy efficiency.
- Material Handling: In logistics and warehousing, the module assists in monitoring conveyor systems, ensuring smooth material flow and operations.


















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