zvigadzirwa

The watchdog module monitors system parameters zvinosanganisira: • the application loop maximum execution time kuitira kuona kana maitiro ari kuita chirongwa chayo nemazvo uye asiri looping (hang-up). • the application loop minimini execution nguva kuitira kuti uone kana processor iri kuita chirongwa chayo nemazvo uye isiri kusvetuka zvikamu zvechirongwa. • 5 Vdc voltage monitoring ye overvoltage uye undervoltage (5 Vdc ± 5 %). • ndangariro kukanganisa logic kubva CPU, COM uye MEM modules. Kana paine chikanganiso chekuyeuka, iyo watchdog inobuda inobviswa-simba. • ESD kupinza kubvisa-energize iyo watchdog inobuda yakazvimiririra kubva kune processor. Iyi ESD yekupinza ndeye 24 Vdc uye yakaparadzaniswa negotsi kubva mukati 5 Vdc. Kuti ukwanise kuyedza WD module yemabasa ese, iyo WD module pachayo ndeye 2-kunze-kwe-3-kuvhota system. Chikamu chega chega chinotarisa ma parameter anotsanangurwa pamusoro. Iyo yakawanda WDG OUT yakabuda ikozvino i900 mA (fuse 1A) 5 Vdc. Kana huwandu hwemamodules ekubuda pane imwecheteyo 5 Vdc yekupa ichida yakakwira ikozvino (yese yeWD yekupinza mafungu ezvinobuda modules), ipapo watchdog inodzokorora (WDR, 10302/1/1) inofanira kushandiswa, uye mutoro unofanirwa kukamurwa pamusoro peWD neWDR.