Siemens PLC

Specialized hardware diagnostics and repair of Siemens S7 series controllers including S7-200, S7-300, S7-400, S7-1200 and S7-1500 models. Diagnostics are performed using TIA Portal or STEP 7 software together with dedicated hardware tools and cover diagnostic LED status, CPU modules, power supplies, I/O cards and communication interfaces (Profibus, Profinet, MPI). Common repairs include memory fault correction, replacement of dried electrolytic capacitors, internal power circuit repair, backplane short-circuit elimination and hardware configuration recovery after repair. Final testing is carried out with real industrial process simulation and verification of communication stability and I/O functionality.