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Download: DSM Implements OPC Server for Fisher-Rosemount RS3 RNI and Modbus

With annual sales of US$7 billion and 22,000 employees at more than 200 sites around the world, DSM is a highly integrated group of companies active worldwide in life science products, performance materials, polymers and industrial chemicals. DSM's strategic objective is to join the ranks of the world's leading specialty companies by 2005 by achieving high added value, strong growth and more stable profit levels.

"We faced consistency problems between our batches," said Piet Deen, Process Control Engineer at DSM Resins in the Netherlands. "We purchased AspenTech's InfoPlus.21 including Batch.21 to archive our batch data. We also wanted the new software to help us conduct e-Business. Since the content of our raw material storage tanks is the responsibility of the raw material supplier, we had to transfer level measurements from the DCS to SAP via i-doc. So the raw material supplier received a message in their SAP system with the actual and forecast production amounts. SAP now takes care of the order, delivery and payment process. This automation reduces the human interface by eliminating all paperwork, such as billing." Piet Deen of DSM

To transfer data from the RS3 to InfoPlus.21, DSM used Matrikon's OPC Server for Fisher-Rosemount RS3 RNI, reading from 2200 points and writing to approximately 20 points once every minute. "We started to transfer all relevant values from the RS3 to InfoPlus.21," said Deen. "That means all Analog inputs, Digital inputs, Control (SP,RSP,Output) and digital signals from block level (Batch start, Batch stop, BatchID, Product number etc.) called Batch characteristics. We also transferred information to National Instruments Bridgeview.

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"It was pointed out by Emerson / Fisher-Rosemount Systems that the software from Matrikon was to be used to connect a PC to an RNI. The installation of the software was a piece of cake; I just followed the instructions. We are very pleased with the software. If you use the OPC server in combination with AspenTech, you only have to configure the RNI in the OPC server like Node name and RNI name… that's all!"

Based on the success of the project, DSM installed 6 of Matrikon's OPC servers in Italy, France, Netherlands (3 installations), USA (Chicago), and Spain. In 2002, they plan to install 3 more servers in China, USA (Augusta) and Germany. Deen added: "...the OPC server is working fine in combination with the client applications, no problems have occurred. As well, due the confidence we have in the RNI OPC interface, we ordered Matrikon's OPC Server for Modbus Plus to interface between AspenTech InfoPlus.21 and AEG Modicon PLCs."

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