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Expert Abb PLC & Control System Repair Services

Is a malfunctioning ABB PLC or control system component causing downtime or operational issues in your automation system? ROC Industrial specializes in the repair of ABB PLCs, with a particular focus on the AC500 series, and other ABB control products. We offer a fast, reliable, and cost-effective alternative to replacement, minimizing disruptions and getting your equipment back to optimal performance. Our technicians are experienced in diagnosing and repairing a wide range of ABB PLC and control system problems.


About ABB PLCs and Control Systems


ABB is a global leader in power and automation technologies, and their PLCs and control systems are used in a wide variety of industries and applications, from process control and discrete manufacturing to building automation and infrastructure. The AC500 series is a versatile and scalable PLC platform known for its flexibility and performance.


ABB PLC Models/Systems We Repair


  • AC500 Series:AC500-eCo: PM554, PM564, PM566
    AC500-S (Safety PLC): PM5630, PM5650
    AC500-XC (Extreme Conditions): PM554-XC, PM564-XC
    AC500: PM571, PM572, PM573, PM581, PM582, PM583, PM585, PM590, PM591, PM592, PM595

  • AC31

  • Other ABB PLC/Control System Components: We also repair communication modules, I/O modules, power supplies and other accessories


Common ABB PLC Problems We Solve


  • Processor Faults: CPU failures, memory errors, watchdog timer issues.

  • I/O Module Failures: Faulty input or output modules.

  • Communication Problems: Issues with Ethernet/IP, PROFINET, PROFIBUS, Modbus, CANopen, or other communication protocols.

  • Power Supply Issues: PLC won't power on, intermittent power.

  • Programming Errors: While we don't typically  fix programming errors, we can often identify them as the source of a problem.

  • Component Failures: Failure of internal electronic components.

  • Battery Problems


Common ABB PLC Fault Codes/Indicators We Fix


Our technicians are experienced in diagnosing and resolving a wide range of ABB PLC fault codes and indicator lights, including (but not limited to) the following:


  • LED Status Indicators: Common LED patterns on AC500 CPUs and modules (e.g., flashing red "Diag" LED, specific error codes displayed on a 7-segment display or on connected HMIs).

  • Fault Codes Displayed in Automation Builder: We can diagnose faults reported within the Automation Builder engineering software.

  • Specific AC500 Fault Codes: Common hardware-related fault codes, such as those related to I/O errors, communication failures, and power supply problems.


Don't see your specific fault code or indicator? We can likely still diagnose and repair your ABB PLC. Contact us with the fault information and PLC model.


Our ABB PLC Repair Process


  1. Free Evaluation & Quote: Describe the problem and your ABB PLC model. We provide a free quote.

  2. Shipping: Ship the PLC or component to our facility.

  3. Diagnosis & Repair: Our technicians use specialized diagnostic equipment, including ABB software (Automation Builder) and hardware, to pinpoint the fault.

  4. Testing & Quality Assurance: We thoroughly test the repaired PLC.

  5. Fast Turnaround: Minimize downtime.

  6. Warranty: We offer a comprehensive warranty.


Why Choose ROC Industrial for ABB PLC Repair?


  • Expert Technicians: Our team has experience with ABB PLCs.

  • ABB-Specific Diagnostic Tools: We use specialized software and hardware.

  • Genuine or Equivalent Parts: We use high-quality replacement parts.

  • Fast Turnaround Times: Minimize downtime.

  • Cost-Effective Solutions: Repair is often much cheaper than replacement.

  • Comprehensive Warranty: We stand behind our work.


Get Your ABB PLC Repaired Today!


Contact ROC Industrial for a free quote and expert repair services.

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