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Studying The Use of OPC SERVER Technology To Solve Communication Problems And Adaptation And Remove The Incompatibility Between Different Components And Devices In The Programmable Control System

دراسة استخدام تقنية "OPC SERVER" في حل مشاكل الاتصال و المواءمة و إزالة عدم التوافق بين التجهيزات المكونة لنظم التحكم المبرمجة

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 Publication date 2016
and research's language is العربية
 Created by Shamra Editor




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In this essay we will study the using of OPC standard in adapting and removing the incompatibility between different components and devices in the control system . The OPC works as a third party that connect between devices (data sources) and programs that require this data , in case those programs may can't connect directly with that devices as a result of incompatibility between them. This incompatibility happens because these devices and programs are from different vendors or because the devices are very old and can't connect with newer programs. OPC will be a suitable solution for communications problems between the devices and programs in the control system, the OPC will connect to each of them and transfer data as good as if the connection between them is direct without any third party. The importance of this suggested technique will be shown practically in this essay through the implementation of it in solving one of the pumping control system problems in the Syrian Company for Oil Transport (SCOT). the suggestion was to use a OPC Server program (Kepware OPC Server) and a SCADA program ( WinCC flexible) instead of the old SCADA program and keep the old PLC devices , in this way we can get rid of the problems that appear in the old SCADA program and therefore we can ensure that the system will work as wanted with no problem. That will bring benefits to the company and results to high reliability in the work.


Artificial intelligence review:
Research summary
تقدم هذه الدراسة استخدام تقنية 'OPC Server' لحل مشاكل الاتصال والمواءمة بين الأجهزة المختلفة في نظم التحكم المبرمجة. تعمل تقنية 'OPC' كوسيط يضمن الاتصال بين الأجهزة التي تعد مصدرًا للبيانات والبرامج التي تحتاج لقراءة هذه البيانات، وذلك عندما لا يمكن لهذه البرامج أن تتصل بشكل مباشر مع الأجهزة بسبب عدم التوافق بينها. تم تطبيق هذه التقنية في الشركة السورية لنقل النفط في بانياس لحل مشاكل منظومة التحكم بالضخ باستخدام برنامج 'Kepware OPC Server' بدلاً من برنامج المراقبة والتحكم القديم، مع الإبقاء على تجهيزات 'PLC' القديمة. أسفر التطبيق عن التخلص من المشاكل السابقة وضمان عمل النظام بشكل موثوق وفعال، مما أدى إلى فوائد اقتصادية كبيرة وموثوقية عالية في العمل.
Critical review
دراسة نقدية: تقدم الدراسة حلاً عملياً لمشاكل الاتصال في نظم التحكم المبرمجة باستخدام تقنية 'OPC Server'. ومع ذلك، يمكن القول أن الدراسة تفتقر إلى تحليل شامل للتحديات المحتملة التي قد تواجه تطبيق هذه التقنية في بيئات صناعية مختلفة. كما أن الدراسة لم تتناول بشكل كافٍ الجوانب الأمنية المتعلقة بنقل البيانات عبر 'OPC Server'، وهو جانب حيوي يجب أخذه بعين الاعتبار لضمان سلامة البيانات وحمايتها من الاختراقات. بالإضافة إلى ذلك، كان من الممكن أن تكون الدراسة أكثر شمولية إذا تضمنت مقارنة بين 'OPC Server' وتقنيات أخرى مشابهة لحل مشاكل الاتصال في نظم التحكم.
Questions related to the research
  1. ما هي تقنية 'OPC' وكيف تعمل؟

    تقنية 'OPC' هي معيار عالمي يسمح للتطبيقات الصناعية بمشاركة البيانات بشكل سريع وموثوق، حيث تعمل كوسيط بين الأجهزة المصدرة للبيانات والبرامج التي تحتاج لقراءة هذه البيانات، مما يحل مشاكل عدم التوافق بين مكونات منظومة التحكم.

  2. ما هي الفوائد الاقتصادية لتطبيق تقنية 'OPC' في نظم التحكم؟

    تطبيق تقنية 'OPC' يوفر الكثير من مصاريف الصيانة الكبيرة التي كانت تُصرف على تأمين مستلزمات النظام القديم ومكوناته، كما يقلل من الحاجة إلى استبدال البنية التحتية القديمة، مما يؤدي إلى توفير كبير في الجهد والوقت والمال.

  3. ما هي المشاكل التي حلتها تقنية 'OPC' في الشركة السورية لنقل النفط؟

    تقنية 'OPC' حلت مشاكل الاتصال بين برنامج المراقبة والتحكم القديم وتجهيزات 'PLC' القديمة، مما أدى إلى التخلص من مشاكل الصيانة والتوافق وضمان عمل النظام بشكل موثوق وفعال.

  4. ما هي التحديات المحتملة التي قد تواجه تطبيق تقنية 'OPC' في بيئات صناعية مختلفة؟

    من التحديات المحتملة التي قد تواجه تطبيق تقنية 'OPC' هي الجوانب الأمنية المتعلقة بنقل البيانات، التوافق مع الأنظمة القديمة، والتكلفة الأولية لتطبيق التقنية وتدريب العاملين عليها.


References used
Kepware Technologies. KEPServerEX Quick Client Connectivity Guide KTSM- 00021 V. 1.04 . Kepware Technologies , 2011, 11
GEOVAP Technologies . Reliance 4 OPC Tutorial. GEOVAP, Spol. S R.O, 2015,21
Modicon . Modbus Protocol Reference Guide PI–MBUS–300 Rev: J . Modicon Inc , 1996 , 121
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