Umthombo ohlakaniphile kulula ukuwuphatha uma uhlelo lokulawula luhlukaniswa ngamaqembu acacile. Amaphampu, amalambu, amavalvu, namasignali omculo akufanele konke kusuke kuswishi eyodwa elula. Kuphrojekthi enkulu, opharetha angase adinge imodi ethule yasemini, imodi yempelasonto ekhanyayo, nombukiso womculo wamaholide. Ikhabethe le-PLC noma isikrini sokuthinta singagcina lezi zinhlelo futhi sinciphise umsebenzi wezandla ophindaphindiwe.
Izilungiselelo zokuvikela nazo zibalulekile. Amasiginali wezinga lamanzi, ukuvikelwa kokuvuza, ukuvikela ukugcwala kakhulu, nokuma kwesimo esiphuthumayo kunganciphisa ubungozi bezisetshenziswa phakathi nokusetshenziswa kwansuku zonke. Ukuze kulungiswe, iqembu ngalinye lepompo kufanele libe nenombolo, futhi umzila wekhebula kufanele ufane nomdwebo. Uma kwenzeka iphutha, abasebenzi bangathola indawo ethintekile ngokushesha esikhundleni sokumisa wonke umthombo isikhathi eside. Uhlelo oluhle lokulawula luphinde lushiye isikhala sezinguquko zohlelo lwakamuva lapho isikwele sinemicimbi emisha.
