{"id":2631,"date":"2024-11-15T15:34:14","date_gmt":"2024-11-15T07:34:14","guid":{"rendered":"https:\/\/www.siproin-ic.com\/?p=2631"},"modified":"2025-04-11T10:16:32","modified_gmt":"2025-04-11T02:16:32","slug":"%e3%80%90product-application%e3%80%91rs485-typical-circuit-application-details","status":"publish","type":"post","link":"https:\/\/www.siproin-ic.com\/tr\/%e3%80%90product-application%e3%80%91rs485-typical-circuit-application-details\/","title":{"rendered":"\u3010\u00dcr\u00fcn Uygulamas\u0131\u3011 RS485 Tipik Devre Uygulama Detaylar\u0131"},"content":{"rendered":"<h2 id=\"ember1008\" class=\"ember-view reader-text-block__heading-2\"><span style=\"color: #000000;\">Giri\u015f<\/span><\/h2>\n<p id=\"ember1009\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">RS485 devresi, end\u00fcstriyel kontrol ortam\u0131nda yayg\u0131n olarak kullan\u0131lan ortak bir seri ileti\u015fim aray\u00fcz\u00fc standard\u0131d\u0131r. Dengeli iletim ve diferansiyel al\u0131m kullan\u0131r, ortak mod parazitini bast\u0131rma yetene\u011fine sahiptir, onlarca metreden binlerce metreye kadar ileti\u015fim mesafesi i\u00e7in uygundur ve \u00e7ok d\u00fc\u011f\u00fcml\u00fc sistemlerde iyi performans g\u00f6sterir.<\/span><\/p>\n<p id=\"ember1010\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">End\u00fcstriyel kontrol alan\u0131nda, RS485 veri yolu genellikle sens\u00f6rler, akt\u00fcat\u00f6rler vb. gibi \u00e7e\u015fitli cihazlar\u0131 ba\u011flamak i\u00e7in kullan\u0131l\u0131r. Diferansiyel iletim modu sayesinde RS485 veri yolu, kararl\u0131 veri iletimi sa\u011flamak i\u00e7in ortak mod parazitine etkili bir \u015fekilde direnebilir. Ayr\u0131ca RS485 devresi, sistem g\u00fc\u00e7 kayna\u011f\u0131n\u0131 ve al\u0131c\u0131-verici g\u00fc\u00e7 kayna\u011f\u0131n\u0131 izolasyon cihaz\u0131 arac\u0131l\u0131\u011f\u0131yla izole ederek sistemin kararl\u0131l\u0131\u011f\u0131n\u0131 ve g\u00fcvenli\u011fini daha da art\u0131rabilir.<\/span><\/p>\n<p id=\"ember1011\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">SSP485 \u00e7ipi, 2Mbps'ye kadar veri aktar\u0131m h\u0131zlar\u0131na sahip klasik bir +5V d\u00fc\u015f\u00fck g\u00fc\u00e7l\u00fc yar\u0131 \u00e7ift y\u00f6nl\u00fc RS485 al\u0131c\u0131-vericidir. +3.3V g\u00fc\u00e7 kayna\u011f\u0131, maksimum iletim h\u0131z\u0131 500Kbps'ye \u00f6nerilir. SSP485, +15kVESD elektrostatik de\u015farj korumal\u0131 ar\u0131za emniyetli bir devreye sahiptir.<\/span><\/p>\n<p id=\"ember1012\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">SSP485 al\u0131c\u0131s\u0131, birim y\u00fck ba\u015f\u0131na 1\/8 giri\u015f empedans\u0131na sahiptir ve veri yoluna 256 al\u0131c\u0131-verici ba\u011flanabilir. Esas olarak RS-485\/RS-422 haberle\u015fme sisteminde kullan\u0131l\u0131r.<\/span><\/p>\n<p id=\"ember1013\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">SSP485 \u00e7ip pin diyagram\u0131 a\u015fa\u011f\u0131daki gibidir:<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2821 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/1-2-300x197.png\" alt=\"\" width=\"329\" height=\"216\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/1-2-300x197.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/1-2-18x12.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/1-2.png 319w\" sizes=\"(max-width: 329px) 100vw, 329px\" \/><\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">(SSP485 pin \u015femas\u0131)<\/span><\/p>\n<p><span style=\"color: #000000;\">Pin a\u00e7\u0131klamas\u0131 a\u015fa\u011f\u0131daki gibidir:<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2822 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/2-1-300x221.png\" alt=\"\" width=\"406\" height=\"299\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/2-1-300x221.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/2-1-768x566.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/2-1-16x12.png 16w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/2-1.png 770w\" sizes=\"(max-width: 406px) 100vw, 406px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\uff08Pin Atama\uff09<\/span><\/p>\n<p><span style=\"color: #000000;\">SSP485 devre \u015femas\u0131 a\u015fa\u011f\u0131daki gibidir:<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2823 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/3-1-300x134.png\" alt=\"\" width=\"432\" height=\"193\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/3-1-300x134.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/3-1-18x8.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/3-1.png 640w\" sizes=\"(max-width: 432px) 100vw, 432px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">(SSP485 devre \u015femas\u0131)<\/span><\/p>\n<p><span style=\"color: #000000;\">SSP485 tipik devre RE ve DE'nin birbirine ba\u011fl\u0131 oldu\u011funu, MCU kontrol pimi taraf\u0131ndan kontrol edildi\u011fini, RX ve TX'in s\u0131ras\u0131yla SSP485 RO ve DI pinlerine ba\u011fl\u0131 MCU seri sinyalleri oldu\u011funu g\u00f6rebiliriz.<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Kontrol sinyali y\u00fcksek ve RE mant\u0131\u011f\u0131 1 oldu\u011funda, SSP485 g\u00f6nderme i\u00e7in etkinle\u015ftirilir:<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">TX y\u00fcksek oldu\u011funda, A \u00e7\u0131k\u0131\u015f\u0131 y\u00fcksek ve B \u00e7\u0131k\u0131\u015f\u0131 d\u00fc\u015f\u00fckt\u00fcr, yani 485 \u00e7\u0131k\u0131\u015f\u0131 lojik 1'dir;<\/span><\/p>\n<p><span style=\"color: #000000;\">TX d\u00fc\u015f\u00fck oldu\u011funda, A \u00e7\u0131k\u0131\u015f\u0131 d\u00fc\u015f\u00fck ve B y\u00fcksektir, yani 485 \u00e7\u0131k\u0131\u015f\u0131n\u0131n mant\u0131ksal 0'\u0131d\u0131r.<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Kontrol sinyali d\u00fc\u015f\u00fck ve RE mant\u0131\u011f\u0131 0 oldu\u011funda, SSP485 al\u0131m i\u00e7in etkinle\u015ftirilir:<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">485 veri yolunda A-B\u2265-50mV oldu\u011funda, RX y\u00fcksektir ve lojik 1 al\u0131n\u0131r.<\/span><\/p>\n<p><span style=\"color: #000000;\">485 veri yolunda A-B\u2264-200mV oldu\u011funda, RX d\u00fc\u015f\u00fckt\u00fcr ve mant\u0131ksal 0 al\u0131n\u0131r.<\/span><\/p>\n<h2><span style=\"color: #000000;\">Optokupl\u00f6r izolasyon devresi<\/span><\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2824 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/4-300x118.png\" alt=\"\" width=\"519\" height=\"204\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/4-300x118.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/4-768x303.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/4-18x7.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/4.png 865w\" sizes=\"(max-width: 519px) 100vw, 519px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">(\u0130zolasyon devre \u015femas\u0131)<\/span><\/p>\n<p><span style=\"color: #000000;\">VCC_MCU ve VCC2, sinyallerin izole edilmi\u015f iletimini sa\u011flamak i\u00e7in optokuplaj izolasyonu yoluyla iki ortak olmayan g\u00fc\u00e7 kayna\u011f\u0131 grubudur, SSP485 ve MCU ortak de\u011fildir, tamamen izole edilmi\u015ftir ve y\u00fcksek ortak mod voltaj\u0131n\u0131n olu\u015fumunu etkili bir \u015fekilde engeller, b\u00f6ylece 485 \u00e7ip hasar oran\u0131n\u0131 b\u00fcy\u00fck \u00f6l\u00e7\u00fcde azalt\u0131r, sistemin kararl\u0131l\u0131\u011f\u0131n\u0131 art\u0131r\u0131r. Ancak bir\u00e7ok devre cihaz\u0131 da vard\u0131r, k\u0131sa \u00f6m\u00fcr, ortak moda kar\u015f\u0131 zay\u0131f diren\u00e7, y\u00fcksek g\u00fc\u00e7 t\u00fcketimi, iletim h\u0131z\u0131 fotoelektrik cihazlar vb. ile s\u0131n\u0131rl\u0131d\u0131r.<\/span><\/p>\n<h2><span style=\"color: #000000;\">Dijital izolasyon devresi<\/span><\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2825 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/5-1-300x89.png\" alt=\"\" width=\"617\" height=\"183\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/5-1-300x89.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/5-1-768x228.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/5-1-18x5.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/5-1.png 865w\" sizes=\"(max-width: 617px) 100vw, 617px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">(\u0130zolasyon devre \u015femas\u0131)<\/span><\/p>\n<h2><span style=\"color: #000000;\">Otomatik al\u0131c\u0131-verici devresi<\/span><\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2826 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/6-1-300x123.png\" alt=\"\" width=\"534\" height=\"219\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/6-1-300x123.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/6-1-768x315.png 768w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/6-1-18x7.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/6-1.png 864w\" sizes=\"(max-width: 534px) 100vw, 534px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">\uff08Devre \u015femas\u0131\uff09<\/span><\/p>\n<p id=\"ember1038\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">Otomatik al\u0131c\u0131-verici devresi 485 devresinin \u00fczerine tipik bir triyot anahtarlama devresi ekler.<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Veri g\u00f6nder<\/span><\/li>\n<\/ul>\n<p id=\"ember1040\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">E\u011fer 0x72 verisini g\u00f6ndermek istiyorsak, bunu ikili 0x01110010 olarak yazar\u0131z ve TX pini 1 ve 0'\u0131 yans\u0131tmak i\u00e7in y\u00fcksek ve d\u00fc\u015f\u00fck olacakt\u0131r.<\/span><\/p>\n<p id=\"ember1041\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">TX pini 0 oldu\u011funda, transist\u00f6r a\u00e7\u0131k de\u011fildir, DE y\u00fcksektir ve s\u00fcr\u00fcc\u00fc durumuna girilir. DI pini topraklanm\u0131\u015fsa, AB'ler aras\u0131ndaki diferansiyel seviye mant\u0131\u011f\u0131 0'd\u0131r;<\/span><\/p>\n<p id=\"ember1042\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">TX pini 1 oldu\u011funda, transist\u00f6r a\u00e7\u0131kt\u0131r, RE d\u00fc\u015f\u00fckt\u00fcr ve al\u0131c\u0131 durumuna girer ve A ve B pinleri y\u00fcksek empedans durumundad\u0131r, \u00e7\u00fcnk\u00fc \u00e7ekme direnci Ra2 ve a\u015fa\u011f\u0131 \u00e7ekme direnci Rb2'nin etkisi nedeniyle, AB aras\u0131ndaki diferansiyel seviye mant\u0131\u011f\u0131 1'dir.<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Al\u0131nan veriler<\/span><\/li>\n<\/ul>\n<p id=\"ember1044\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">Veri al\u0131rken MCU'nun RX pini kullan\u0131l\u0131r. Veri al\u0131rken TX pini y\u00fcksek kal\u0131r, transist\u00f6r a\u00e7\u0131kt\u0131r, RE d\u00fc\u015f\u00fckt\u00fcr ve al\u0131c\u0131 durumuna girer. RX pini, AB ucundan iletilen verileri alacakt\u0131r.<\/span><\/p>\n<p id=\"ember1045\" class=\"ember-view reader-text-block__paragraph\"><span style=\"color: #000000;\">Transist\u00f6r\u00fcn a\u00e7\u0131k gecikmesi ns seviyesindedir ve kapal\u0131 gecikme us seviyesindedir, bu da al\u0131c\u0131-verici devresinin d\u00fc\u015f\u00fck seviyesinin daha uzun bir gecikme s\u00fcresine yol a\u00e7acakt\u0131r, ard\u0131ndan y\u00fcksek iletim seviyesi harici yukar\u0131 ve a\u015fa\u011f\u0131 \u00e7ekme direnci taraf\u0131ndan tahrik edilir ve diren\u00e7 ne kadar y\u00fcksekse, y\u00fckselen kenar o kadar yava\u015f olur.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2827 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/7-1-300x179.png\" alt=\"\" width=\"394\" height=\"235\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/7-1-300x179.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/7-1-18x12.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/7-1.png 428w\" sizes=\"(max-width: 394px) 100vw, 394px\" \/><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2828 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/8-1-300x178.png\" alt=\"\" width=\"389\" height=\"231\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/8-1-300x178.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/8-1-18x12.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/8-1.png 434w\" sizes=\"(max-width: 389px) 100vw, 389px\" \/><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-2829 aligncenter\" src=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/9-1-300x184.png\" alt=\"\" width=\"395\" height=\"242\" srcset=\"https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/9-1-300x184.png 300w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/9-1-18x12.png 18w, https:\/\/www.siproin-ic.com\/wp-content\/uploads\/2024\/11\/9-1.png 574w\" sizes=\"(max-width: 395px) 100vw, 395px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">TX pininde g\u00f6nderilen bitin 0 ve g\u00f6nderilecek bitin 1 oldu\u011funu varsayarsak, al\u0131c\u0131-verici al\u0131c\u0131 durumuna ge\u00e7er \u00e7\u00fcnk\u00fc y\u00fcksek iletim seviyesi harici bir a\u015fa\u011f\u0131 \u00e7ekme direnci taraf\u0131ndan s\u00fcr\u00fcl\u00fcr. AB hatt\u0131n\u0131n d\u00fc\u015f\u00fck seviyeden y\u00fcksek seviyeye ge\u00e7mesi birka\u00e7 y\u00fcz ns s\u00fcrer ve bu s\u00fcre zarf\u0131nda RX pini 0 al\u0131r. Baud h\u0131z\u0131 \u00e7ok y\u00fcksekse, RX pimi taraf\u0131ndan al\u0131nan d\u00fc\u015f\u00fck seviye, al\u0131c\u0131 ba\u015flang\u0131\u00e7 biti ile kar\u0131\u015ft\u0131r\u0131lacak ve anormal ileti\u015fimle sonu\u00e7lanacakt\u0131r. Bu nedenle, ger\u00e7ek devre \u00f6l\u00e7\u00fcl\u00fcr ve 128000bps ve alt\u0131ndaki otomatik al\u0131c\u0131-verici h\u0131z\u0131 normal ileti\u015fim olabilir.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>RS485 devresi, end\u00fcstriyel kontrol ortam\u0131nda yayg\u0131n olarak kullan\u0131lan ortak bir seri ileti\u015fim aray\u00fcz\u00fc standard\u0131d\u0131r. Dengeli iletim ve diferansiyel al\u0131m kullan\u0131r, ortak mod parazitini bast\u0131rma yetene\u011fine sahiptir, onlarca metreden binlerce metreye kadar ileti\u015fim mesafesi i\u00e7in uygundur ve \u00e7ok d\u00fc\u011f\u00fcml\u00fc sistemlerde iyi performans g\u00f6sterir.<\/p>","protected":false},"author":8,"featured_media":2632,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[62],"tags":[295,294,296],"acf":[],"_links":{"self":[{"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/posts\/2631"}],"collection":[{"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/comments?post=2631"}],"version-history":[{"count":0,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/posts\/2631\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/media\/2632"}],"wp:attachment":[{"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/media?parent=2631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/categories?post=2631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siproin-ic.com\/tr\/wp-json\/wp\/v2\/tags?post=2631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}