6ES7231-5ND32-0XB0 - Siemens SIMATIC S1200 4 AI Analog Input

Part of the SM 1231 analog input module family, the 6ES7231-5ND32-0XB0 supports input signal ranges of ±10 V, ±5 V, ±2.5 V, ±1.25 V, as well as 0–20 mA / 4–20 mA current loops. With a resolution of 15 bits + sign bit, it delivers accurate analog data capture for use in precision measurement and control applications. Compact in design, it measures 8.90 x 10.60 x 5.70 cm and weighs only 0.161 kg, allowing for streamlined panel integration.

Backed by the PM300: Active Product Lifecycle, this Siemens PLC module ensures long-term availability, service support, and compatibility with S7-1200 CPUs. Manufactured in China to Siemens’ global engineering standards, the 6ES7231-5ND32-0XB0 provides stable and accurate performance in harsh industrial environments. With seamless integration into the TIA Portal environment, it allows engineers to quickly configure, monitor, and diagnose analog signals.

Whether you're upgrading an existing automation line or deploying a new measurement and control system, the 6ES7231-5ND32-0XB0 offers the flexibility and resolution needed to ensure high-fidelity signal processing. For full technical specifications and installation details, refer to the official Siemens datasheet for 6ES7231-5ND32-0XB0.

The Siemens 6ES7231-5ND32-0XB0 PLC is optimized for industries that require reliable analog input acquisition, such as food processing, water management, building automation, and environmental monitoring. It excels at capturing input from pressure transmitters, temperature sensors, ultrasonic level devices, and other 4–20 mA or voltage-based analog field instruments.

For maintenance teams and process engineers, the module provides consistent, noise-resistant input measurement—even under fluctuating load or environmental conditions. Its high-resolution ADC ensures accurate scaling of analog signals, which is critical for real-time process adjustments, alarm triggers, or PID control logic. The support for both voltage and current inputs enables compatibility with legacy and modern sensor types.

Engineering students and junior automation professionals benefit from the 6ES7231-5ND32-0XB0 by gaining hands-on experience in analog signal acquisition, data interpretation, and fault diagnostics through Siemens’ TIA Portal. Whether used in a lab or on the shop floor, this PLC analog input module provides Siemens-grade dependability and the precision needed for scalable industrial systems.