News
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25 October - 2026
IC693CPU360 Restarts: Thermal Shutdown vs Power Ripple
Diagnose IC693CPU360 PLC restarts caused by thermal shutdown or 5V ripple. Practical test steps and fixes inside.
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21 October - 2026
IC693CPU374 Profibus Blackout: Firmware and GSD Fixes
CPU374 swaps can trigger Profibus blackouts. Learn why PBM200 firmware, GSD files, and backplane timing matter more than memory.
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14 October - 2026
Fixing GE Fanuc IC693CPU372 STOP Mode Lockout
Fix GE Fanuc IC693CPU372 STOP mode errors with software overrides and diagnostic steps.
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03 October - 2026
IC693CBK002 Rack 2 Detection Failure Troubleshooting Guide
Fix IC693CBK002 Rack 2 detection failure in Series 90-30. Check cable integrity, PWR331 wiring, termination, and DIP switches. Expert PLC diagnostics.
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29 September - 2026
IC693CPU311 Flashing OK LED: Fix Hardware Mismatch
Fix IC693CPU311 flashing OK LED and Proficy hardware mismatch. Step-by-step PLC recovery guide.
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27 September - 2026
GE Fanuc 90-30 Rack Expansion Error Cable Test
Diagnose Rack Expansion Errors in GE Fanuc 90-30 PLCs. Test IC693CBL302 cable pins and termination resistors. Step-by-step guide with practical insights.