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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19 October - 2026
IC693CPU370 Checksum Error: RAM vs Packet Loss
Diagnose IC693CPU370 check-sum errors: RAM corruption vs serial packet loss. Field thresholds and fixes inside.
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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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12 October - 2026
IC693PWR325 Internal Fuse Replacement Guide
IC693PWR325 internal fuse guide: 5A time-delay, Bussmann MDL-5, Littelfuse 313005, and replacement tips.
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09 October - 2026
IC693CPU321 Watchdog Timeout: Scan Overrun vs Hardware Failure
Diagnose IC693CPU321 watchdog timeout in Series 90-30 PLC. Learn scan overrun vs hardware failure causes, firmware fixes, and power supply checks.
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07 October - 2026
IC693PWR325 Fuse Guide: Specs, Replacements & Maintenance
IC693PWR325 fuse specs, Bussmann MDL-5 alternatives, and maintenance tips for GE Fanuc PLC power modules.