{"id":3175,"date":"2026-02-26T05:01:01","date_gmt":"2026-02-26T05:01:01","guid":{"rendered":"https:\/\/renewasoft.com.tr\/?p=3175"},"modified":"2026-03-01T15:42:53","modified_gmt":"2026-03-01T15:42:53","slug":"3175","status":"publish","type":"post","link":"https:\/\/renewasoft.com.tr\/index.php\/tr\/2026\/02\/26\/3175\/","title":{"rendered":"OPC UA ve saha ba\u011flant\u0131s\u0131: \u201csahadan buluta\u201d g\u00fcvenli veri ak\u0131\u015f\u0131 nas\u0131l kurulur?"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text css=&#8221;&#8221;]<strong>OPC UA ve Saha Ba\u011flant\u0131s\u0131: HES\u2019te \u201cSahadan Buluta\u201d G\u00fcvenli Veri Ak\u0131\u015f\u0131 Nas\u0131l Kurulur?<\/strong><\/p>\n<p><strong>TL;DR <\/strong><\/p>\n<ul>\n<li>OPC UA, kimlik do\u011frulama, yetkilendirme, gizlilik, b\u00fct\u00fcnl\u00fck ve denetlenebilirlik hedeflerini i\u00e7eren bir g\u00fcvenlik modeli sunar. [1][2]<\/li>\n<li>OT\u2019yi internete a\u00e7mak yerine edge gateway + end\u00fcstriyel DMZ \u00fczerinden kontroll\u00fc egress tasarlamak en g\u00fcvenli pratik yakla\u015f\u0131md\u0131r. [3][4]<\/li>\n<li>IEC 62443 zone\u2013conduit mant\u0131\u011f\u0131 OT\/edge\/IT s\u0131n\u0131rlar\u0131n\u0131 ve g\u00fcvenli ileti\u015fim yollar\u0131n\u0131 standardize eder. [4][5]<\/li>\n<li>Kesintili ba\u011flant\u0131larda edge\u2019de store-and-forward + yerel zaman serisi kay\u0131t veri kayb\u0131n\u0131 azalt\u0131r. [6][7]<\/li>\n<li>Hydrowise de\u011feri: standardizasyon + zaman serisi saklama + alarm\/KPI + analitik zinciri; g\u00fcvenlik ve kesinti tolerans\u0131 bunun \u00f6n ko\u015fuludur.<\/li>\n<\/ul>\n<p><strong>1) Hook: HES\u2019te \u201csahadan buluta veri\u201d neden hassas bir problem?<\/strong><\/p>\n<p>HES\u2019te OT a\u011f\u0131 y\u00fcksek s\u00fcreklilik ve d\u00fc\u015f\u00fck tolerans gerektiren s\u00fcre\u00e7leri ta\u015f\u0131r. \u201cBuluta ba\u011flayal\u0131m\u201d karar\u0131; i\u015f s\u00fcreklili\u011fi + g\u00fcvenlik + performans kararlar\u0131n\u0131n birlikte verilmesidir. NIST ICS g\u00fcvenlik rehberi, ICS bile\u015fenlerinin kendine \u00f6zg\u00fc gereksinimleri oldu\u011funu ve klasik IT yakla\u015f\u0131mlar\u0131n\u0131n do\u011frudan kopyalanmas\u0131n\u0131n riskli olabilece\u011fini vurgular. [3]<\/p>\n<p>&nbsp;<\/p>\n<p><strong>2) Kavramlar ve arka plan: OPC UA g\u00fcvenli\u011fi \u201cneye dayan\u0131r?\u201d<\/strong><\/p>\n<p>OPC UA Part 2 g\u00fcvenlik modelinde authentication, authorization, confidentiality, integrity, auditability ve availability gibi hedefler tan\u0131mlan\u0131r ve mekanizmalarla ili\u015fkilendirilir. [1][2]<\/p>\n<p>Teknik Not: \u201cOPC UA = TLS a\u00e7t\u0131m, bitti\u201d de\u011fildir. Uygulama kimli\u011fi (sertifika), kullan\u0131c\u0131 kimli\u011fi\/roller ve node bazl\u0131 yetkilendirme birlikte y\u00f6netilmelidir. [1][2]<\/p>\n<p><strong>3) Referans desen: OT \u2192 Edge\/DMZ \u2192 IT\/Cloud<\/strong><\/p>\n<p>\u00d6nerilen desen: OT Zone (PLC\/RTU + OPC UA Server) \u2192 Edge\/DMZ Zone (Gateway) \u2192 IT\/Cloud (Ingestion + TSDB + Analytics). Prensip: OPC UA Server OT i\u00e7inde kal\u0131r; buluta direkt a\u00e7\u0131lmaz. Bulut ba\u011flant\u0131s\u0131n\u0131 edge gateway \u00fcstlenir.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-3176 aligncenter\" src=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-300x167.jpg\" alt=\"\" width=\"521\" height=\"290\" srcset=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-300x167.jpg 300w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-1024x571.jpg 1024w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-768x428.jpg 768w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-1536x857.jpg 1536w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-350x195.jpg 350w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-540x301.jpg 540w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-896x500.jpg 896w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-717x400.jpg 717w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3-600x335.jpg 600w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image1-3.jpg 1920w\" sizes=\"auto, (max-width: 521px) 100vw, 521px\" \/><\/p>\n<p><strong>4) G\u00fcvenlik tasar\u0131m\u0131: Sertifika, politika se\u00e7imi, denetlenebilirlik<\/strong><\/p>\n<p>4.1 Sertifika ya\u015fam d\u00f6ng\u00fcs\u00fc (PKI): OPC UA uygulama kimli\u011fi i\u00e7in X.509 sertifikalar\u0131 kullan\u0131r; g\u00fcven ili\u015fkisi trust list ile y\u00f6netilir. Sertifika yenileme, iptal (CRL) ve anahtar koruma s\u00fcre\u00e7leri operasyonel olarak tan\u0131mlanmal\u0131d\u0131r. [1][2]<\/p>\n<p>4.2 Reverse Connect: Firewall\/DMZ senaryolar\u0131nda inbound port a\u00e7madan ba\u011flant\u0131 kurmay\u0131 kolayla\u015ft\u0131rabilir; ancak do\u011frulama ve DoS gibi riskler i\u00e7in ek kontroller gerektirir. [8][9]<\/p>\n<p>Risk Kutusu: Reverse Connect \u201cher derde deva\u201d de\u011fildir; ek g\u00fcvenlik de\u011ferlendirmesi gerektirir. [8]<\/p>\n<p>4.3 IEC 62443 zone\u2013conduit: Segmentasyon (zone) ve zonelar aras\u0131 kontroll\u00fc ge\u00e7i\u015f (conduit) ile g\u00fcvenli ileti\u015fim yollar\u0131 tan\u0131mlan\u0131r. [4][5]<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-3177 aligncenter\" src=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-300x167.jpg\" alt=\"\" width=\"535\" height=\"298\" srcset=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-300x167.jpg 300w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-1024x571.jpg 1024w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-768x428.jpg 768w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-1536x857.jpg 1536w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-350x195.jpg 350w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-540x301.jpg 540w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-896x500.jpg 896w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-717x400.jpg 717w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2-600x335.jpg 600w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image2-2.jpg 1920w\" sizes=\"auto, (max-width: 535px) 100vw, 535px\" \/><\/p>\n<p><strong>5) Kesinti senaryosu: \u0130nternet giderse ne olacak?<\/strong><\/p>\n<p>Kesintili ba\u011flant\u0131larda edge gateway\u2019de store-and-forward kuyruk + yerel zaman serisi kay\u0131t kritik hale gelir. Ba\u011flant\u0131 gelince veriler idempotent \u015fekilde batch replay edilir. Kesintili ba\u011flant\u0131 tasar\u0131m gereksinimi olarak ele al\u0131nmal\u0131d\u0131r. [6]<\/p>\n<p>Teknik Not: Tampon \u00f6nceli\u011fi genellikle alarm \u00fcreten tag\u2019ler, KPI hesaplayan tag\u2019ler ve korelasyon gerektiren sinyallerdir (titre\u015fim + s\u0131cakl\u0131k gibi).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-3178 aligncenter\" src=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-300x167.jpg\" alt=\"\" width=\"528\" height=\"294\" srcset=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-300x167.jpg 300w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-1024x571.jpg 1024w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-768x428.jpg 768w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-1536x857.jpg 1536w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-350x195.jpg 350w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-540x301.jpg 540w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-896x500.jpg 896w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-717x400.jpg 717w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2-600x335.jpg 600w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/image3-2.jpg 1920w\" sizes=\"auto, (max-width: 528px) 100vw, 528px\" \/><\/p>\n<p><strong>6) HES etkisi: g\u00fcvenlik, operasyon, bak\u0131m<\/strong><\/p>\n<p>NIST rehberi ICS ortamlar\u0131nda kullan\u0131labilirlik\/g\u00fcvenilirli\u011fin kritik oldu\u011funu ve g\u00fcvenli\u011fin s\u00fcre\u00e7 g\u00fcvenli\u011fiyle birlikte ele al\u0131nmas\u0131 gerekti\u011fini vurgular. [3] Edge taraf\u0131ndaki tamponlama\/standardizasyon PdM ve alarm kalitesi i\u00e7in veri bo\u015flu\u011fu problemini azalt\u0131r. [7]<\/p>\n<p>OPC UA\u2019n\u0131n IIoT ortamlar\u0131nda performans de\u011ferlendirmeleri, kaynak k\u0131s\u0131tlar\u0131 alt\u0131nda tasar\u0131m\u0131n sampling\/bant geni\u015fli\u011fi plan\u0131 gerektirdi\u011fini g\u00f6sterir. [10]<\/p>\n<p><strong>7) Mini uygulama senaryosu: devreye alma ad\u0131mlar\u0131<\/strong><\/p>\n<p>1) Kritik tag envanteri (\u00f6r. ActivePower_MW, Flow_m3s, GuideVane_Pos_%, BearingTemp_C, Vibration_RMS).<\/p>\n<p>2) OPC UA Server OT i\u00e7inde konumland\u0131r\u0131l\u0131r.<\/p>\n<p>3) Edge\/DMZ gateway ile allowlist egress kural\u0131 tasarlan\u0131r.<\/p>\n<p>4) Sertifika\/policy + trust list + yenileme plan\u0131 uygulan\u0131r. [1][2]<\/p>\n<p>5) IEC 62443 zone\u2013conduit ile segmentasyon netle\u015ftirilir. [4][5]<\/p>\n<p>6) Store-and-forward + replay testi yap\u0131l\u0131r. [6]<\/p>\n<p>7) Hydrowise taraf\u0131nda standardizasyon + TSDB + alarm\/KPI + analitik katman\u0131 devreye al\u0131n\u0131r.<\/p>\n<p>Risk Kutusu: OT\u2019yi direkt internete a\u00e7mak; sertifika yenileme s\u00fcrecini tan\u0131mlamamak; DMZ olmadan d\u00fcz a\u011f; kesinti testi yapmamak; tag standardizasyonunu atlamak. [3]<\/p>\n<p><strong>8) Hydrowise \/ Renewasoft yakla\u015f\u0131m\u0131 ve CTA<\/strong><\/p>\n<p>Hydrowise\u2019\u0131n de\u011fer zinciri: OPC UA entegrasyonu \u2192 tag\/\u00fcnite\/zaman standardizasyonu \u2192 zaman serisi saklama \u2192 alarm\/KPI \u2192 analitik. CTA: 2 haftal\u0131k pilot (20\u201330 kritik tag + edge gateway + TSDB + alarm ekran\u0131) ile h\u0131zl\u0131 de\u011fer \u00fcretilebilir.<\/p>\n<p><strong>SSS<\/strong><\/p>\n<p>1) OPC UA\u2019y\u0131 do\u011frudan buluta a\u00e7abilir miyim? Teknik olarak m\u00fcmk\u00fcn; OT g\u00fcvenli\u011fi a\u00e7\u0131s\u0131ndan DMZ\/edge deseni tercih edilir. [3][4]<\/p>\n<p>2) Sertifika y\u00f6netimi \u015fart m\u0131? OPC UA g\u00fcvenlik modeli sertifikalar\u0131 merkez al\u0131r. [1][2]<\/p>\n<p>3) Kesinti olursa veriler kaybolur mu? Store-and-forward + yerel kay\u0131t ile kay\u0131p azalt\u0131l\u0131r. [6]<\/p>\n<p>4) IEC 62443 neden \u00f6nemli? Zone\u2013conduit ile s\u0131n\u0131rlar ve ge\u00e7i\u015fler tan\u0131mlan\u0131r. [4][5]<\/p>\n<p>5) Reverse Connect ne zaman i\u015fe yarar? DMZ\/firewall senaryolar\u0131nda, ancak ek kontrollerle. [8][9]<\/p>\n<p>6) OPC UA performans\u0131 yeterli mi? Sampling ve bant geni\u015fli\u011fi plan\u0131 \u00f6nemlidir. [10]<\/p>\n<p><strong>Sonu\u00e7 <\/strong><\/p>\n<p>HES\u2019te sahadan buluta veri ak\u0131\u015f\u0131; g\u00fcvenlik + s\u00fcreklilik + veri kalitesi \u00fc\u00e7l\u00fcs\u00fcn\u00fc ayn\u0131 anda sa\u011flamal\u0131d\u0131r. OPC UA g\u00fcvenlik modeli, IEC 62443 segmentasyonu ve edge gateway kesinti tolerans\u0131 ile Hydrowise analitik de\u011fer zinciri s\u00fcrd\u00fcr\u00fclebilir hale gelir.<\/p>\n<p>Next steps: (1) Kritik tag envanteri ve veri s\u00f6zl\u00fc\u011f\u00fc, (2) OT\u2013DMZ\u2013IT zone tasar\u0131m\u0131, (3) Sertifika\/policy + store-and-forward plan\u0131, (4) Pilot entegrasyon.<\/p>\n<p><strong>Kaynak\u00e7a<\/strong><\/p>\n<p>[1] OPC Foundation. OPC UA Part 2: Security (OPC 10000-2). (Online Reference).<\/p>\n<p>[2] OPC Foundation. OPC UA Security Architecture (Part 2). (Online Reference).<\/p>\n<p>[3] NIST. SP 800-82 Rev.2: Guide to Industrial Control Systems (ICS) Security. (2015).<\/p>\n<p>[4] ISA. ISA\/IEC 62443 Series of Standards.<\/p>\n<p>[5] ISA GCA. How to Define Zones and Conduits (IEC 62443).<\/p>\n<p>[6] Engstr\u00f6m, G. Tackling Offline and Intermittent Connectivity in IoT. (2023).<\/p>\n<p>[7] An edge-computing based industrial gateway for Industry 4.0. (2024).<\/p>\n<p>[8] OPC Foundation. Reverse Connect (OPC UA Part 2, Sec. 6.14).<\/p>\n<p>[9] OPC Foundation. IT\/OT Integration in Secure Industrial Environments \u2013 Reverse Connect. (2024).<\/p>\n<p>[10] Performance Analysis of OPC UA for Industrial IIoT Environments. (2022).[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text css=&#8221;&#8221;]OPC UA ve Saha Ba\u011flant\u0131s\u0131: HES\u2019te \u201cSahadan Buluta\u201d G\u00fcvenli Veri Ak\u0131\u015f\u0131 Nas\u0131l Kurulur? TL;DR OPC UA, kimlik do\u011frulama, yetkilendirme, gizlilik, b\u00fct\u00fcnl\u00fck ve denetlenebilirlik hedeflerini i\u00e7eren bir g\u00fcvenlik modeli sunar. [1][2] OT\u2019yi internete a\u00e7mak yerine edge gateway + end\u00fcstriyel DMZ \u00fczerinden kontroll\u00fc egress tasarlamak en g\u00fcvenli pratik yakla\u015f\u0131md\u0131r. [3][4] IEC 62443 zone\u2013conduit mant\u0131\u011f\u0131 OT\/edge\/IT s\u0131n\u0131rlar\u0131n\u0131 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":3344,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58,1861,60,1857,56,1873],"tags":[],"class_list":["post-3175","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-akilli-sebekeler-enerji-yonetimi","category-ariza-yonetimi-is-degeri","category-endustri-4-enerji-otomasyonu","category-enerji-piyasasi-epias-karar-destek","category-enerji-dijital-donusum","category-scada-iot-ve-veri-mimari"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OPC UA ve saha ba\u011flant\u0131s\u0131: \u201csahadan buluta\u201d g\u00fcvenli veri ak\u0131\u015f\u0131 nas\u0131l kurulur? - Renewasoft Enerji ve Yaz\u0131l\u0131m A.\u015e<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/renewasoft.com.tr\/index.php\/tr\/2026\/02\/26\/3175\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OPC UA ve saha ba\u011flant\u0131s\u0131: \u201csahadan buluta\u201d g\u00fcvenli veri ak\u0131\u015f\u0131 nas\u0131l kurulur? - Renewasoft Enerji ve Yaz\u0131l\u0131m A.\u015e\" \/>\n<meta property=\"og:description\" content=\"[vc_row][vc_column][vc_column_text css=&#8221;&#8221;]OPC UA ve Saha Ba\u011flant\u0131s\u0131: HES\u2019te \u201cSahadan Buluta\u201d G\u00fcvenli Veri Ak\u0131\u015f\u0131 Nas\u0131l Kurulur? TL;DR OPC UA, kimlik do\u011frulama, yetkilendirme, gizlilik, b\u00fct\u00fcnl\u00fck ve denetlenebilirlik hedeflerini i\u00e7eren bir g\u00fcvenlik modeli sunar. [1][2] OT\u2019yi internete a\u00e7mak yerine edge gateway + end\u00fcstriyel DMZ \u00fczerinden kontroll\u00fc egress tasarlamak en g\u00fcvenli pratik yakla\u015f\u0131md\u0131r. 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