Alewijnse Marine Systems (Alewijnse) is a value-added reseller that designs and develops applications based on Yokogawa’s FAST/TOOLS package for use on board ships. Jo Visschers, Alewijnse’s Marine Automation Team Manager, explains his company’s decision to go with a Yokogawa solution: “As a system integrator we have a broad knowledge. For in-depth knowledge of the products and systems we use, we rely on our suppliers. They must of course possess great expertise and a good support section. Yokogawa has got this covered.” Elda Mulalic, Project Engineer for Alewijnse, adds, “You experience this support at the moment you need to modify the software. The developers at Yokogawa are less than an hour away from our office; therefore we have service and support at our beck and call.”
Yokogawa’s support has been particularly valued in the development of custom FAST/TOOLS applications. According to Mr. Visschers, “The alarm processing is a good example of this. The way in which this is done with the SCADA system is unique and requires a confirmation by the operator for each alarm.” Yokogawa has been closely involved, supporting Alewijnse in every step of this process.
Oceanco, a Dutch shipbuilder specializing in megayachts, relies on Alewijnse for electrical engineering and ship automation. Mr. Visschers explains, “Alewijnse is the main supplier of anything connected to a wire. This can vary from power supplies to controls and from alarm functionality to audio, video and entertainment systems.” It goes without saying that all engine room automation is under the responsibility of Alewijnse. Engines, generators, all hydraulics, systems for fresh and waste water, and so on all use controls supplied by the company.
Alewijnse’s control systems are based on a three-layer concept. Mr. Visschers: “First of all, there is the power management system (PMS), which controls the entire power supply. Three main generators and one auxiliary generator are controlled fully automatically by PMS and according to demand.” The actual controlling is done by the second layer, the PLC system, which is comprised of two redundant main PLCs. As the alarms are also controlled by the PLC system, the system is approved by Lloyd’s Register. The third layer is the SCADA system.
Mr. Visschers again: “The SCADA system is used for visualization, operation and configuration of the engine room automation. The FAST/TOOLS system from Yokogawa was chosen.” Ms. Mulalic further explains this selection: “Two points were decisive in the selection of FAST/TOOLS: the system quality and the support function offered by Yokogawa. Another SCADA system was used on earlier projects, but in practice it caused a lot of problems. As a result, the ship was out of action after two days. FAST/TOOLS, in contrast, runs faultlessly. FAST/TOOLS is ideal for maritime applications. The system works fine in the redundant version, while the alarm history is automatically generated by the system. Furthermore, FAST/TOOLS offers all the options for individual applications.” |