Product Description
The Siemens 6ES7120-0BH00-0AA0 is a compact and robust SIMATIC S7-1200 PLC CPU designed for demanding industrial automation applications. This central processing unit provides a powerful processing core, integrated I/O, and communication interfaces to control a variety of machines and processes. It features a PROFINET interface for seamless network integration, enabling efficient data exchange and remote access capabilities. The integrated digital and analog I/Os offer direct connectivity to sensors and actuators, reducing the need for additional hardware. Programming is achieved through the user-friendly TIA Portal, ensuring efficient project development and commissioning. This CPU is engineered for reliable performance in harsh industrial environments, delivering precise and dependable control for your automation needs.
Is Your Device Showing These Signs?
Siemens 6ES7120-0BH00-0AA0 S7-1200 series digital input modules commonly experience issues such as communication failures due to corrupted firmware, input signal errors caused by faulty sensors or wiring, and power supply problems leading to module malfunction. Resolve communication problems by performing a firmware update via the TIA Portal. Address input signal errors by inspecting sensor connections, replacing defective sensors, and verifying proper wiring configurations. Rectify power supply issues by ensuring the module receives the correct voltage and current, replacing the power supply if necessary, and checking for short circuits.
Technical specifications
The Siemens 6ES7120-0BH00-0AA0 is a SIMATIC S7-1200 compact CPU 1212C AC/DC/relay central processing unit, engineered for streamlined automation tasks. This CPU features an integrated power supply of 85-264 VAC at 47-63 Hz, providing versatile power input options. It is equipped with 8 digital inputs operating at 24 VDC, adhering to IEC 61131 Type 1 standards, and 6 relay outputs rated at 2A for resistive loads. The CPU incorporates 2 analog inputs, ranging from 0-10V, with a resolution of 10 bits, facilitating precise analog signal acquisition. Communication is facilitated through a single PROFINET port, supporting open communication protocols. Program and data memory is integrated, offering 25 KB of workspace. The unit is designed for DIN rail mounting, ensuring secure installation within control cabinets.
Our Repair Process for the
6ES7120-0BH00-0AA0
Our repair process for the Siemens 6ES7120-0BH00-0AA0 begins with a comprehensive diagnostic evaluation to pinpoint the fault. This involves rigorous testing of all input and output channels, power supply functionality, and communication interfaces. Once the failure is identified, skilled technicians proceed with component-level repair, replacing defective parts with high-quality replacements. Post-repair, the unit undergoes extensive functional testing under simulated operating conditions to ensure it meets or exceeds original performance specifications. Finally, the repaired module is cleaned, carefully packaged, and returned with a detailed repair report outlining the work performed and the tests passed.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















