Cybersecurity in PLC
In this post, we will see the concept of cyber-security in PLC (programmable logic controllers) in industrial automation systems.
In this post, we will see the concept of cyber-security in PLC (programmable logic controllers) in industrial automation systems.
Root Cause Analysis (RCA): Poorly engineered, built & often failing plant Air Comp drives made 100% reliable very economically.
often-found fret-pitted shaft and coupling bore tapers repair caused frequent and lengthy shutdowns.
Case Study: An Indian Plants all turbines’ low Vacuum & Saudi Plant turbo-compressor only.
Root Cause Analysis (RCA): NH3 plant turbo-compressor Tilting Pad too high temperatures sudden affected and entire plant indefinite shutdown threat eliminated.
Turbo-compressor turning gear chamber excessive oil belch posed indefinite plant shutdown problem.
Process Air Compressor cracked shaft spacers; the plant Root Cause Analyzed, made the spacers and heat treated to lesser hardness and fitted on the spare and running rotor.
Root Cause Analysis (RCA): 8000 RPM, 8000 kW, Turbine Problem Threatened Yearlong Total Fertilizer Complex Outage.
The author root cause analyzed the near miss incident of compressor anti-surge control to resume production and surge prevention.
Root Cause Analysis (RCA): Compressor near ½-RPM frequency high magnitude shaft vibrations.