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Mitsubishi PLC Technical Services & Engineering Support

From PLC programming and VFD commissioning to ongoing preventive maintenance — our application engineers support your automation infrastructure throughout its lifecycle.

Commissioning & Start-Up

On-site commissioning support for PLC, VFD, and servo installations. Our engineers verify I/O wiring, configure communication parameters, and perform functional acceptance testing per your project specification.

  • I/O point-to-point verification
  • Drive parameter optimization and auto-tune
  • FAT and SAT documentation

PLC Programming & Integration

Custom PLC application development in IEC 61131-3 structured text, ladder logic, and function block diagram. We develop, test, and document control logic for batch processes, motion sequences, and safety interlocks.

  • All five IEC 61131-3 languages supported
  • HMI screen development and tag binding
  • SCADA connectivity setup

Preventive Maintenance Programs

Scheduled inspection and firmware update programs for installed automation equipment. Includes thermal imaging of drive heatsinks, backup of PLC programs, and verification of safety relay test intervals.

  • Quarterly or semi-annual visit schedules
  • Firmware and security patch management
  • Spare parts inventory recommendations

Operator & Technician Training

Hands-on training programs for plant operators and maintenance technicians covering PLC troubleshooting, VFD parameter adjustment, and HMI navigation. Available on-site or at our regional training centers.

  • Customized to your installed product base
  • Certificate of completion for attendees
  • Training documentation and quick-reference guides

Retrofit & Upgrade Services

Legacy system migration from older PLC platforms to current-generation IIoT-enabled controllers. We handle hardware replacement, program conversion, and communication protocol bridging while minimizing production downtime.

  • Legacy PLC program conversion utilities
  • RS-485 to Ethernet protocol bridging
  • Staged migration for zero-downtime switchover

Remote Technical Hotline

Direct access to application engineers for fault diagnosis, parameter guidance, and programming questions. Available via phone, email, and secure remote desktop sessions for real-time PLC program review.

  • Response time under 4 hours (business days)
  • Secure VPN-based remote PLC access
  • Knowledge base with 2,000+ technical articles

Need Engineering Support for Your Automation Project?

Describe your requirements and our applications team will propose a service scope within 48 hours.

Contact Our Engineering Team