Test your knowledge of Profinet, one of the most potent Ethernet-based communication protocols used in process automation. Covering Profinet architecture, performance, diagnostics, device classes, redundancy, and integration with controllers and field devices, this advanced quiz Perfect for control experts, automation engineers, and instrumentation experts,...

Table of ContentsWhat are NO and NC Contacts?Definition of NO and NC ContactsWhat is an NO (Normally Open) Contact?Typical uses NO (Normally Open) ContactWhat is an NC (Normally Closed) Contact?Typical uses NC (Normally Closed) ContactRelay System Example in AutomationRelay DeactivatedRelay ActivatedHow these Contacts Work...