Kodi ma Rs-485 ndi otani? Kodi ndi machitidwe ake ati poyerekeza ndi Rs-232-C interface? Chifukwa cha maonekedwe a Rs-232 - C Intervicer, pamakhala zolakwa zinayi, ndipo chifukwa chosagwirizana ndi ma chrict a TTL. (2) Mlingo wofala ndi wotsika. Pakupita kwa Asynchronous, kuchuluka kwa baud ndi 20kbps. . Kutumiza kofala kumeneku kumakonda kusokonezedwa, kotero kuti kusokoneza phokoso kumakhala kofooka. (4) Kutali kwa gawo ndi kochepa. Mtengo wofanana wa mtunda wokwera kwambiri ndi mapazi 50, koma amatha kugwiritsidwa ntchito pafupifupi 50 metres. Poganizira zophophonya za Rs-232 - C, miyezo ina yatsopano ya mawonekedwe, ndipo RS-485 ndi yaiwo. Ili ndi izi: 1. Magetsi a RS-485: Malingaliro "1" akuimiridwa ndi mphamvu yamagetsi pakati pa mizere iwiri ngati v; Malingaliro "0" akuyimiriridwa ndi mphamvu yamagetsi pakati pa mizere iwiri kukhala yotsika mtengo wa Rs-232-C, omwe amatha kulumikizidwa ndi TTL. 2. Mlingo wapamwamba kwambiri wa RS-485 ndi 10 MB 3. Makina a RS-485 ndi kuphatikiza kwa driver woyenera komanso wolandila mankhwala, omwe amawonjezera luso lotha kusokoneza, ndiye kuti, luso la anti-nthiti ndilabwino. 4. Mtengo woyenera wa kukwera kwakukulu kwa ma Rs-485 mawonekedwe ndi mapazi 4,000, omwe amatha kufikira mita 3,000. Kuphatikiza apo, Rs-232-C Intficface imangololedwa kulumikiza transceiver imodzi pa basi, ndiye kuti, kuthekera kamodzi. Makina a RS-485 amalola kulumikizana kwa ma transceunts okwana 128 m'basi. Ndiye kuti, ili ndi kuthekera kwa magawo ambiri, kotero kuti ogwiritsa ntchito angathe kukhazikitsa zida za ma netwo pogwiritsa ntchito mawonekedwe amodzi Rs-485. Rs-485 mawonekedwe ndi mawonekedwe okonda osakonda chifukwa cha kusokoneza kwa anti-nthito, kutalikirana kwakanthawi kotalikirana ndi zinthu zambiri. Chifukwa chindapusa cha theka la DR485 Nthawi zambiri chimangofunika mawaya awiri, kuphatikizika kwa RS485 kumatengera kufala kopindika. Makina a 9-Chuma cha DB-9 amagwiritsidwa ntchito pa intaneti, DB-9 (HOD-9 (HE-9 (PIN