Product Description
The Siemens 6ES7288-1ST30-0AA0 is a robust and reliable SIMATIC S7-200 SMART CPU ST30 PLC designed for compact automation solutions. This CPU offers a powerful processing unit, integrated digital and analog I/Os, and versatile communication interfaces, ensuring seamless integration into various industrial applications. It supports a wide range of programming languages and provides real-time control capabilities, making it suitable for demanding tasks. The integrated PROFINET interface enables efficient data exchange and networking, while the compact design allows for easy installation in space-constrained environments. This PLC guarantees precise control, enhanced performance, and dependable operation for your automation needs.
Is Your Device Showing These Signs?
Siemens 6ES7288-1ST30-0AA0 S7-200 SMART CPUs commonly experience program corruption requiring firmware updates or memory resets. Communication failures via the integrated PROFINET port necessitate troubleshooting network configurations, cable integrity, and IP address conflicts. Input/output module failures demand inspection of wiring connections, sensor functionality, and replacement of defective I/O modules. Power supply fluctuations cause CPU faults, so verify voltage levels and replace faulty power supplies. Real-time clock errors lead to inaccurate time stamps, mandating RTC battery replacement or time synchronization configuration.
Technical specifications
The Siemens 6ES7288-1ST30-0AA0 is a SIMATIC S7-200 SMART CPU ST30 central processing unit, engineered for compact and cost-effective automation solutions. This CPU features an integrated power supply of 20.4-28.8V DC, digital inputs consisting of 6 channels at 24V DC sink/source, and digital outputs comprising 4 relay channels rated at 2A. Program memory is 30 KB, and data memory is 12 KB, sufficient for small to medium-sized applications. Communication is facilitated via a single integrated PROFINET port supporting programming, HMI connectivity, and data exchange. The unit supports up to six expansion modules for increased I/O capacity and functionality. Real-time clock functionality is included. Configuration and programming are performed using the STEP 7-Micro/WIN SMART engineering software. The CPU is designed for DIN rail mounting and operates within an ambient temperature range of 0 to 55 degrees Celsius.
Our Repair Process for the
6ES7288-1ST30-0AA0
Our repair process for the Siemens 6ES7288-1ST30-0AA0 PLC begins with a comprehensive diagnostic evaluation to pinpoint the fault. This involves rigorous testing of all input and output modules, power supply, and communication interfaces. Once the defect is identified, skilled technicians proceed with component-level repairs, utilizing high-quality replacement parts that meet or exceed original manufacturer specifications. Repaired units undergo thorough functional testing under simulated operating conditions to guarantee performance and reliability. The PLC is then cleaned, inspected for any cosmetic damage, and securely packaged for return shipment, accompanied by a detailed repair report outlining the work performed and test results.
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.

















