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Migration to a new automation system not only maximizes plant availability, it also reduces the likelihood of health, safety, and environmental incidents. And one of the most fundamental and often overlooked factors for maximizing revenue is the reliability and maintainability of an automation system. Maximizing system availability is a key prerequisite for plant uptime. |
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All automation suppliers take system reliability - a key factor for plant availability - seriously. However, none matches Yokogawa’s extreme commitment. At the heart of all our systems is a unique “Pair and Spare” controller architecture that relies on a redundant set of CPU modules. The actual availability track record of the Yokogawa CENTUM CS 3000 DCS is 99.99999% (seven 9s).
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Yokogawa’s ProSafe-RS is the world’s first truly integrated safety instrumented system. Its integration with the production control system ensures a unified monitoring and operation environment for the operator. TÜV Rheinland (TÜV), a German certification organization, has certified ProSafe-RS to be compliant with both the IEC61508 and IEC61511 international standards. This certification to the latest standards attests to the high level of Yokogawa’s technology and the quality of the ProSafe-RS safety instrumented system.
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By taking advantage of FOUNDATION fieldbus™ and HART connections with field devices, Yokogawa’s asset management system greatly improves device maintainability and reduces maintenance costs. Maintenance staff can now gain access to field device information anywhere and anytime. The results of field device diagnoses can be accurately reflected in both field maintenance and plant operation.
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In the event of a sudden control system breakdown, the quick delivery of interchangeable parts is essential to minimizing plant downtime. For such emergencies, Yokogawa provides a system card rental service as well as an expedited replacement service. A system card can be rented until the defective card is either repaired or replaced with a new card. Cards are dispatched from Yokogawa’s global/local inventory.
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Remote system maintenance is the fastest method for identifying a problem at a customer’s site, minimizing system downtime. A Yokogawa service specialist accesses the system from a remote location to identify the source of the problem. The specialist can spot a defective part and advise the customer of its location.
In addition, when necessary, a specialist can be dispatched to the customer’s site and carry out the repair, either bringing a replacement part or using a part provided by the customer.
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System Reliability and Maintainability |
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