Engineering Documents
Cause & Effect Chart
A matrix or logic document that connects initiating conditions with alarms, trips, valve actions, equipment shutdowns and other protective responses.
Why it matters
It explains what the protection system is designed to do when a defined event occurs and is critical for functional testing and operator understanding.
Related technical topics
Controls & Protection · Intermediate
DCS, SIS and Emergency Shutdown Systems
Understand the different roles of the distributed control system, safety instrumented system and emergency shutdown functions in an LNG facility.
Valves & Protection · Intermediate
Emergency Shutdown Valves (ESDVs)
Learn how ESDVs isolate inventories or process sections during defined shutdown scenarios and how valve fail position, actuator design and shutdown logic fit into the protective architecture.
Safety Systems · Intermediate
Fire & Gas Detection Systems in LNG Facilities
Study the detection and response architecture used to identify flammable gas, fire or cryogenic release hazards and initiate alarms or protective actions.