lihlahisoa

The watchdog module monitors system parameters ho kenyeletsa: • the application loop maximum execution time e le ho lemoha hore na tshebetso e phethahatsa lenaneo la eona ka nepo le hore ha e loping (hang-up). • Nako ea bonyane ea ts'ebetso ea loop ea kopo molemong oa ho bona hore na processor e sebelisa lenaneo ka nepo mme ha e tlole likarolo tsa lenaneo. • 5 Vdc monitoring voltage for overvoltage and undervoltage (5 Vdc ± 5 %). • logic ea phoso ea memori ho tsoa ho li-module tsa CPU, COM le MEM. Haeba ho na le phoso ea memori, tlhahiso ea watchdog e tlosoa matla. • Kenyelletso ea ESD ho fokotsa matla a tlhahiso ea balebeli ntle le processor. Kenyelletso ena ea ESD ke 24 Vdc 'me e arohane ka galvanally ho tloha ka hare ho 5 Vdc. E le hore u tsebe ho leka module ea WD bakeng sa mesebetsi eohle, mochine oa WD ka boeona ke mokhoa oa ho vouta oa 2-of-3-vouting. Karolo ka 'ngoe e beha leihlo litekanyo tse hlalositsoeng ka holimo. Boholo ba tlhahiso ea WDG OUT ea hajoale ke 900 mA (fuse 1A) 5 Vdc. Haeba palo ea li-modules tse hlahisoang ka phepelo e tšoanang ea 5 Vdc e hloka ho feta hona joale (kakaretso ea maqhubu a ho kenya WD ea li-module tsa tlhahiso), joale ho tlameha ho sebelisoa mochine o pheta-phetang (WDR, 10302/1/1), 'me mojaro o lokela ho aroloa holim'a WD le WDR.