Can Protocol: a Laboratory Prototype for Fieldbus Applications
نویسندگان
چکیده
− An integrated solution based on CAN protocol, for industrial measurements and control, is presented. Main characteristics of CAN protocol are underlined in terms of OSI model taking particular attention to hardware implementation, messages types, collision resolution mechanisms and timing synchronization. The paper also includes references to another high level industrial protocols that use the physical and logical data layers of CAN protocol. Experimental results based on a developed prototype applied to a level control loop system and main protocol characteristics are analyzed.
منابع مشابه
Vertical Integration of TTP/A Fieldbus Systems Using Web Services
This paper presents a generic technique to expose data and control of fieldbus systems to applications located at the level of operational management. To provide a high degree of interoperability between the operational level and different fieldbus systems we utilize standardized techniques such as XML, HTTP, and Web services which can be deployed independently of the platform. The proposed ser...
متن کاملUsing a Hardware Coprocessor for Message Scheduling in Fieldbus-based Distributed Systems
Fieldbus based distributed embedded systems used in real-time applications tend to be inflexible in what concerns changing operational parameters on-line. Recent techniques such as the planning scheduler can avoid this problem but do not show adequate responsiveness f o r automatic negotiation of parameter values. In this paper the use of ASIC based coprocessors for message scheduling is propos...
متن کاملController Area Network domotic prototype using GPRS and Ethernet interfaces for virtual monitoring applications
Nowadays there are three basic technological supports which are suffering an enormous development. First we could mention field buses applications, which are getting more and more important in domotics. The second one, Web and Internet applications, is becoming popular and accessible in the last time. Finally, the third support, based on GSM networking, make one of the most important developmen...
متن کاملA Web Service for TTP/A Fieldbus Systems based on Meta-Data
This paper is concerned with the vertical integration of fieldbus systems. It presents a generic technique to expose data and control of fieldbus systems in a semantically rich way to applications located at the level of operational management. To provide a high degree of interoperability between the operational level and different fieldbus systems we utilize standardized techniques such as XML...
متن کاملCoupling Architectures for Low- Level Fieldbusses
This paper deals with hierarchical, multiple fieldbus-based architectures using four case studies that present some concepts reusable in developing the interconnections of intelligent sensors and actuators. The single-master, lowlevel fieldbusses considered involve (1) ASI (ActuatorSensor-Interface), which is an example of a lowest-level industrial interconnection; (2) NBIP (Nine-Bit Interproce...
متن کامل