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Siemens 6ES7331-7KB02-0AB0 Programmable Logic Controller
The Siemens 6ES7331-7KB02-0AB0 Programmable Logic Controller from the SIMATIC S7-300 Series features the SM 331 Analog Input Module designed for precise signal acquisition in industrial automation systems. Developed by Siemens AG, it provides 2 analog inputs supporting voltage, current, thermocouple, and resistance measurements with 9/12/14-bit resolution and isolation. The module includes diagnostic functions and alarm features for stable and accurate data conversion. Integrated within the Siemens PLC ecosystem, the 6ES7331-7KB02-0AB0 ensures reliable temperature and process monitoring for machine builders and OEMs across India who seek high-performance analog measurement in automation applications.
| Brand | Siemens |
| Product Type | Programmable Logic Controller (PLC) |
| Product | 6ES7331-7KB02-0AB0 |
Siemens 6ES7331-7KB02-0AB0 Programmable Logic Controller β Technical Specifications
| Specification | Value |
|---|---|
| Product Description | SIMATIC S7-300, Analog input SM 331, isolated, 2 AI, Resolution 9/12/14 bits, U/I/thermocouple/resistor, alarm, diagnostics, 1x 20-pole, Removing/inserting with active backplane bus |
| Product family | SM 331 analog input modules |
| Product Lifecycle (PLM) | PM400:Phase Out Started |
| Net Weight (kg) | 0,249 Kg |
| Packaging Dimension | 12,80 x 15,10 x 5,00 |
| Package size unit of measure | CM |
| Country of origin | Germany |
The Siemens 6ES7331-7KB02-0AB0 Programmable Logic Controller(PLC) belongs to the SM 331 analog input modules family and is designed for high-accuracy measurement tasks in automated systems. It supports 2 analog inputs with a resolution of 9/12/14 bits, compatible with voltage (U), current (I), thermocouple, and resistor input types. The module offers isolation between channels to reduce noise interference and maintain signal integrity in electrically noisy industrial environments.
Featuring built-in alarm and diagnostic functions, the 6ES7331-7KB02-0AB0 ensures proactive fault detection, minimizing downtime and protecting critical equipment. It connects via a 1Γ 20-pole interface and supports hot swapping, allowing removal or insertion with an active backplane bus for faster maintenance. Weighing just 0.249 kg and with compact dimensions of 12.80 Γ 15.10 Γ 5.00 cm, it integrates seamlessly into control cabinets without occupying excessive space. Manufactured in Germany, it meets Siemensβ stringent quality standards, ensuring long-term durability even in harsh environments.
The Siemens SIMATIC S7-300 6ES7331-7KB02-0AB0 is widely deployed in process industries, manufacturing plants, and precision control systems where accurate temperature, voltage, and current measurement is essential. Its thermocouple and resistor input compatibility makes it ideal for monitoring furnaces, boilers, and chemical processing equipment where reliable thermal data drives operational safety and efficiency.
In automated production lines, the 6ES7331-7KB02-0AB0 supports critical applications such as quality control, predictive maintenance, and process optimization. Maintenance engineers value its hot-swap capability for minimizing downtime during module replacement, while automation integrators appreciate its seamless integration with the Siemens SIMATIC S7-300 ecosystem for scalable and future-ready solutions.
Whether in steel plants, food processing facilities, or energy generation sites, the Siemens 6ES7331-7KB02-0AB0 delivers precision measurement, robust diagnostics, and long-term reliability β making it a trusted choice for industries seeking accurate process control and operational stability.
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