Service Overview
Automation lines depend on PLCs and HMIs. NDTECH restores damaged Allen-Bradley, Omron, Siemens, and Schneider PLC CPU processors, digital/analog input-output cards, power supply racks, and cracked HMI touchscreen panels.
Common Fault Symptoms We Troubleshoot & Fix
- PLC CPU error LED flashing (SF, BF, RUN/STOP fault)
- Blown output transistor/relay channels on I/O module
- HMI Touch screen cracked, unresponsive, or inaccurate touch areas
- Discolored or flickering backlight on operator terminal
- Communication timeout error between HMI and PLC
Our Laboratory Diagnostic Capabilities
- HMI Glass Digitizer & LCD Panel Replacement
- PLC Transistor & Relay Output Channel Micro-Repair
- Optically Isolated Input Channel IC Replacement
- Firmware Reloading & Serial/Ethernet Port Diagnostics
- Touch Alignment & Factory Calibration
Supported OEM Brands
Allen-Bradley
Omron
Siemens S7-1200/1500
Schneider Electric
Delta
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Frequently Asked Questions
Q: Can you replace cracked touchscreen glass without replacing the entire HMI?
Yes! We stock premium replacement capacitive and resistive touch digitizers for all major HMI models, saving you up to 80% compared to buying a new unit.
Fast Diagnostic
Get PLC Module & HMI Touch Screen Repair Quote
Speak with our specialist engineer or submit your board details.
Call +91 9904841888