1. Scan for Malware, Spyware, and Virus 2. Backup PLC program, data, and clear history 3. Provide and install updates, upgrades, patches, and releases to any software provided for the SCADA system, when available 4. Provide and install updates, upgrades, patches, and releases to any firmware provided for the SCADA system, when available 5. Provide and install updates, upgrades, patches, and releases to any software provided for the CPU Operating System (O/S), when available 6. Checkup/Tune up (registry repair, startup file edits, defragmentation, delete temporary files, etc.…) 7. Dust & blowdown primary CPU tower & monitor 8. Correct any immediate SCADA program errors/faults 9. Check all LED indicators (power, battery, PLC components, etc.…) for faults 10. Check all communication cables, plugs, sockets, terminal strips, wiring and modules are connected properly 11. Verify proper operation of printer & battery backup power supply (UPS) 12. Make a report of system findings & performance 13. Train the Water Treatment Plant staff of the new updates, upgrades, patches, & releases to the SCADA CPU and the associated programming 14. Replace the motherboard battery, CMOS battery, logic board battery, if required 15. Replace the Uninterruptable Power Supply (UPS) battery (SCADA computer & PLC cabinet), if required 16. Verify proper ventilation fan operation (computer tower, PLC cabinet) and clean filters 17. Look for indications of overheated components in the CPU and on the PLC modules (i.e., distorted, warped, or discolored cases and burnt odors) 18. Verify proper input operating voltage (within tolerance range) for computer, monitor, and PLC cabinet 19. Visit each Remote Telemetry Unit (RTU) & verify proper operation with the SCADA computer system 20. Perform an audit to check each component of the PLC system and determine if parts are satisfactory or need replacement, then create a list of replacement parts needed 21. Install the updates, upgrades, patches, and releases to the software/firmware of the back-up SCADA CPU to match the operating SCADA CPU 22. Make a report of system findings & performance 23. Train the Water Treatment Plant staff of the new updates, upgrades, patches, & releases to the SCADA CPU and the associated programming
