I-RS-485 yi-differential signaling, i-half-duplex multi-point communication standard, edla ngokusebenzisa iintambo ezimbini ezijijekileyo (iintambo ezimbini eziphambili) ukudlulisa idatha. Amanyathelo oqhagamshelwano aneenkcukacha zokudibanisa isixhobo esijikelezayo kwi-interface ye-RS-485 ye-aI-Moxaesi sixhobo zezi zilandelayo:
Inyathelo 1: Qinisekisa i-Device Interface kunye neenkcazo zePin
Iinkcazo ze-pin zinokwahluka phakathi kweempawu ezahlukeneyo zezixhobo. Kucetyiswa ukuba uqhagamshelane nomvelisi ofanelekileyo ukuqinisekisa iinkcazo ze-pin ezichanekileyo ngaphambi kokufaka iingcingo!
I-MOXAIimveliso ikakhulu zineentlobo ezintathu zezichweba ezilandelayo:
Ulandelelwano lwentambo ye-DB 9 interface kunye neemodeli ezifanelekileyo zezi zilandelayo:
Ulandelelwano lwentambo ye-interface ye-RJ 45 kunye neemodeli ezifanelekileyo zezi zilandelayo
Ulandelelwano lweentambo ze-terminal interface kunye neemodeli ezifanelekileyo zezi zilandelayo:
Inyathelo lesi-2: Qhagamshela usebenzisa iiCables
Imeko 1: Ukuqhagamshela isixhobo seMoxa kwisixhobo esinye se-RS-485. Xa uqhagamshela isixhobo seMoxa kunye nesixhobo esihambayo, qhagamshela iiphini ezi-positive (B) kwiiphini ezi-positive (B) kunye neephini ezi-negative (A) kwiiphini ezi-negative (A).
Imeko yesi-2: Xa uqhagamshela isixhobo se-MOXA kwizixhobo ezininzi ze-RS-485, kufuneka kusetyenziswe uqhagamshelo lwe-daisy-chain. Zonke ii-terminals ze-A(+) zezixhobo ziqhagamshelwe ngakwicala lomgca webhasi olungileyo, kwaye zonke ii-terminals ze-B(-) zezixhobo ziqhagamshelwe ngakwicala lomgca webhasi ongalunganga.
Imeko 3: Kufuneka kongezwe ii-resistor zokuphelisa. Ukuba i-NPort ine-resistor yokuphelisa eyakhelwe ngaphakathi (umz., i-resistor yokuphelisa eyakhelwe ngaphakathi ye-NPort 5450 inokuvulwa nge-DIP switch (ngesiqhelo i-SW 3 yi-resistor yokuphelisa), ngoko ke kufuneka kongezwe i-resistor yokuphelisa ekupheleni kwekhonkco, njengoko kubonisiwe kumzobo ongezantsi.
Imeko 4: Ukuba i-NPort ayinayo i-resistor yokuphelisa eyakhelwe ngaphakathi, ingongezwa kumacala omabini ekhonkco le-RS-485, kunye neentambo eziboniswe kumzobo ongezantsi.
Ixesha leposi: Epreli-29-2026