Wednesday, December 17, 2014

Safety instrumented system to be launched next week!

Yokogawa's ProSafe(R)-RS R3.02.20 is to be launched in a few days (2014). This enhanced version of the ProSafe-RS safety instrumented system (SIS) offers improved connectivity with the ProSafe-SLS SIS, enabling the status of both systems to be monitored on-screen by operators of the CENTUM® VP integrated production control system. In addition, R3.02.20 offers enhanced support of widely used open communication protocols, improving connectivity with other companies' SCADA (Supervisory Control & Data Acquisition) software.

Development background
In the oil, natural gas, petrochemical, iron & steel, and other energy and basic materials industries, plant safety is a growing concern. There is thus a rising demand for SISs that can help to prevent accidents by detecting abnormal conditions and initiating actions such as an emergency plant shutdown. Yokogawa provides two different SISs, the programmable ProSafe-RS and the solid-state ProSafe(R)-SLS, and customers select which systems to utilise based on their facilities' requirements. For customers who use both SIS systems, there is need for a solution that will enable the status of both these systems to be monitored in an integrated manner.

Overview of enhancements
1. Integrated monitoring of systems
With the ProSafe-SLS information gathering capability on ProSafe-RS SIS, operators can now monitor the status of a ProSafe-SLS SIS from a CENTUM VP window. If a problem occurs anywhere in a plant, the sequence-of-event (SOE) data from both SISs will be displayed on an integrated screen at the operator terminals. Operators and maintenance engineers can then use this data to quickly identify and analyse the problem cause.

2. Communication protocol support for upstream applications
In oil and gas wellhead and pipeline applications, cost performance and space saving are key considerations. To satisfy these needs, ProSafe-RS is equipped with both safety and process control functions. The SCADA systems at such sites often rely on Distributed Network Protocol 3 (DNP3) for narrowband wireless and satellite upstream communications because this open protocol supports the temporary storage of data when there is a disruption in network communications. Support of DNP3 in the ProSafe-RS R3.02.20 controller enables customers to easily replace and expand their systems in the field while continuing to use their existing SCADA infrastructure. This saves time and reduces costs.

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