Product Description
The Siemens 6ES7658-3CX78-2YH5 is a robust industrial PC designed for demanding automation applications. This SIMATIC IPC664 is engineered for continuous operation in harsh environments, offering high system availability and performance. It features a powerful processor, ample memory, and flexible expansion options to accommodate diverse industrial needs. The unit is built with a rugged enclosure, ensuring resistance to shock, vibration, and electromagnetic interference. Its reliable design and long-term availability make it a dependable solution for critical control and monitoring tasks in various industrial sectors.
Is Your Device Showing These Signs?
Siemens 6ES7658-3CX78-2YH5 ET 200MP IM155-5 PN HF experiences common failures including communication errors on the PROFINET interface, often traced to corrupted firmware or configuration mismatches. Resolve CPU faults stemming from memory corruption or program execution errors by performing a memory reset and reloading the application. Address I/O module failures by verifying proper module seating, checking for short circuits on the backplane bus, and confirming correct parameter assignments in the TIA Portal project. Rectify power supply issues by inspecting voltage levels and replacing faulty capacitors or internal components.
Technical specifications
The Siemens 6ES7658-3CX78-2YH5 is a SIMATIC S7-1500 software controller CPU 1507D TF, designed for demanding, failsafe, and isochronous applications. This controller combines the advantages of a PC-based controller with the ruggedness of a PLC. It features a high-performance CPU, ample memory for complex programs and data, and integrated PROFINET interfaces for seamless communication with other devices. The integrated technology functions enable precise control and motion control capabilities. This controller supports deterministic real-time behavior, ensuring predictable and repeatable performance in time-critical processes. The failsafe functionality, certified to SIL 3/PL e, guarantees safe operation and prevents hazardous situations. Configuration and programming are performed using the TIA Portal engineering framework, providing a unified and efficient development environment.
Our Repair Process for the
6ES7658-3CX78-2YH5
Our repair process for the Siemens 6ES7658-3CX78-2YH5 begins with a comprehensive diagnostic evaluation to pinpoint the fault. Following diagnostics, a detailed repair quote is provided, outlining the necessary repairs and associated costs. Upon approval, skilled technicians execute the repair using quality components and adhering to strict Siemens standards. Post-repair, the unit undergoes rigorous testing to ensure optimal performance and reliability. Finally, the repaired Siemens 6ES7658-3CX78-2YH5 is carefully packaged and returned with a full repair report.
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.

















