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PLC Systems Repair and Service
Comprehensive PLC Electronics Service
Programmable Logic Controllers are the brain of industrial automation. PLC failure means production line stoppage. EFIXLAB offers fast and professional repair of PLC systems from all major manufacturers.
Supported PLC Brands
Siemens
- S7-1200/1500 - CPU repair, communication modules, I/O cards
- S7-300/400 - power supply repair, CPU modules, rack backplane
- LOGO! - compact controller repair
Allen-Bradley / Rockwell Automation
- ControlLogix - processor repair, I/O modules, communication cards
- CompactLogix - integrated controller repair
- MicroLogix - compact PLC service
Mitsubishi Electric
- MELSEC iQ-R - CPU module repair
- MELSEC Q/L Series - power supply, I/O modules
Other Manufacturers
- Schneider Electric (Modicon M340, M580)
- ABB (AC500, AC800)
- Omron (CP1, CJ2, NJ-series)
- Beckhoff (CX-series embedded PLC)
What We Repair
CPU Modules
- Program memory corruption - recovery and reprogramming
- Battery replacement for program backup
- Communication port failures
- Processor and memory chip replacement
Power Supply Modules
- 24V DC output failures
- Capacitor replacement
- Voltage regulator repair
- Overcurrent protection circuits
I/O Modules
- Digital input/output failures
- Analog input/output calibration
- Optical isolator replacement
- Terminal block damage
Communication Modules
- Ethernet port repair
- Profibus/Profinet interface cards
- Serial communication modules (RS232/RS485)
- Fieldbus gateways
Common Failures
- Battery low alarm - backup battery replacement, program preservation
- I/O not responding - module repair or replacement
- Communication errors - port or cable damage
- Power supply failure - capacitor aging, component burnout
- Program loss - memory chip failure, battery dead
Repair Process
- Diagnosis - error code analysis, module testing
- Program backup - save existing program if possible
- Component repair - SMD soldering, chip replacement
- Testing - functional test with simulated I/O
- Documentation - repair report with recommendations