Product Description
The Siemens 6ES7352-1AH01-0AE0 is a high-performance SIMATIC S7-300 series counter module designed for precise and reliable counting, frequency measurement, and position detection in industrial automation applications. This module features two independent 32-bit counter channels, each capable of handling incremental encoders, pulse encoders, and frequency signals up to 500 kHz, ensuring accurate acquisition of rapidly changing process variables. Integrated gate control, compare functions, and programmable operating modes provide exceptional flexibility for adapting to diverse counting tasks, including totalizing, batch counting, and speed monitoring. The module's robust design and comprehensive diagnostic capabilities guarantee dependable operation in harsh industrial environments, minimizing downtime and maximizing productivity. Its seamless integration with the SIMATIC S7-300 PLC family simplifies configuration and programming, allowing for efficient implementation of complex automation solutions. The 6ES7352-1AH01-0AE0 delivers exceptional accuracy and reliability for demanding counting applications.
Is Your Device Showing These Signs?
The 6ES7352-1AH01-0AE0 frequently exhibits issues related to encoder signal degradation, resulting in inaccurate position data. Resolve this by inspecting the encoder cable for damage and ensuring proper shielding to mitigate electromagnetic interference (EMI). Address communication failures by verifying the PROFIBUS DP connector integrity and confirming correct baud rate settings within the PLC configuration. Resolve axis control instability through PID parameter tuning and backlash compensation adjustments within the SIMATIC S7 program. Finally, rectify module faults by updating the firmware to the latest version and checking the power supply voltage for adherence to specified tolerances.
Technical specifications
The Siemens 6ES7352-1AH01-0AE0 is a high-performance, intelligent S7-300 series counter module designed for precise and reliable counting, frequency measurement, and position detection in industrial automation applications. This module features two independent 32-bit counter channels, each capable of handling incremental encoders, SSI absolute encoders, and pulse/direction signals with a maximum counting frequency of 500 kHz, ensuring accurate acquisition of rapidly changing process variables. Integrated hardware gates and comparison functions enable direct control of outputs based on counter values, facilitating real-time response to events without requiring PLC intervention, thereby reducing CPU load and improving system performance. The module supports various operating modes, including continuous counting, single counting, periodic counting, and frequency measurement, offering flexibility to adapt to diverse application requirements. Parameter assignment and diagnostics are seamlessly integrated into the STEP 7 programming environment, simplifying configuration and troubleshooting. Robust electromagnetic compatibility and compliance with industry standards guarantee reliable operation in harsh industrial environments. The 6ES7352-1AH01-0AE0 provides advanced functionality for demanding counting and positioning tasks, contributing to increased efficiency and precision in automated processes.
Our Repair Process for the
6ES7352-1AH01-0AE0
Our repair process for the 6ES7352-1AH01-0AE0 begins with a thorough inspection of the encoder cable for any signs of damage, coupled with verification of proper shielding to eliminate electromagnetic interference. Communication failures are addressed by confirming the integrity of the PROFIBUS DP connector and validating the accuracy of the baud rate settings in the PLC configuration. Axis control instability is resolved through precise PID parameter tuning and backlash compensation adjustments within the SIMATIC S7 program. Module faults are rectified by updating the firmware to the latest version and ensuring the power supply voltage remains within specified tolerances.
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.

















