Tuncay AYDOĞAN, İbrahim ÖZÇELİK, Akif KUTLU, Hüseyin EKİZ

Design, implementation, and performance analysis of the WorldFIP/ATM local bridge

World factory instrumentation protocol (WorldFIP) is a fieldbus network protocol that provides a link between level zero (sensors/actuators) and level one (field controllers such as programmable logic controllers, etc.) in industrial automation systems. Accessing and connecting the WorldFIP remotely is important for monitoring, maintaining, and controlling devices in a factory in which asynchronous transfer mode (ATM) is used as a backbone network. In this study, a transparent WorldFIP/ATM bridge was designed and implemented in order to access devices on WorldFIP via an ATM network. This designed bridge may also provide control of the devices over wide area networks. The bridge's performance was investigated using network simulation software under various message traffic conditions. The results obtained from the simulations showed that the bridge provides real-time communications between WorldFIP and ATM.

Anahtar Kelimeler:

WorldFIP, ATM, bridge, industrial communications, fieldbuses

Design, implementation, and performance analysis of the WorldFIP/ATM local bridge

Keywords:

WorldFIP, ATM, bridge, industrial communications, fieldbuses,

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Figure 13 shows the labeled A3C5 (from ATM3 to CPS5) remote ATM message delivery time from the ATM to WorldFIP. The delivery time varies from 262 to 272 μ s at variation under WorldFIP (70/30)-ATM (90/10) loads. Figure 14 shows the utilization of the bridge entities under WorldFIP (30/70)-ATM (70/30) loads. The utilization varies from 5.5% to 17% for WIE, is 6% for WAFE, varies from 3.6% to 5.5% for AIE, and varies from 0.7% to 4.3% for AWFE. The usage rate increases when the load increases. 450 550 650 750 850 950 1050 1150
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