| Fieldbus technology is the basis of decentralised automation |
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The trend to use remote I/O components at the machine and in the installation remainsunbroken. Consequently, the performance profile and capability of the remote I/O level havebecome key factors, |
whether in systems based on programmable logic controllers or PC control. The high demands placed on the I/O system are fulfilled by the I/O concept presented in this article.
The company Unaxis Data Storage, a division of the Unaxis AG, is a leading supplier of manufacturing solutions for optical storage media, such as the CD and DVD and the hard disk. A wide spectrum of solutions is manufactured, ranging from advanced metallizing and mastering systems to complete production lines.
The company is the global market leader, since two-thirds of all CS and more than 80% of all CD/RW, DVD and mini disks are produced at the company’s sites. Additionally, Unaxis is world-wide the only supplier of solutions for all data formats.
Modular production systems
In a modern production system for DVD9, the manufacturer successfully applies the I/O system piconet®. DVD9 is a format with a storage capacity of 8.5 GB. The two disc layers are equipped with an information layer each, one of which is semi-reflective so that the laser scanner can read both layers from one side only.
This format can be extended to up to 17 GB (DVD18) with a total of 4 layers which be scanned from both sides via one laser scanner each. The production of semi-reflecting layers is extremely demanding. In order to ensure economical production, the system must be highly precise and stable and the repeat accuracy of the process must be excellent.
Unaxis masters these proceedings and produces complete production lines, such as the MATRIX system for the DVD 9 format, as explained in this article. The „Matrix“ is a complete production system for DVD9 formats. The system is equipped with two metallizers with a 2.5 s cycle time. The discs are coated in a complex procedure, formatted and bonded precisely. It goes without saying that maximum precision and stability is required in all production stages to ensure high system productivity.
The modular construction of the production system is based on precise manufacture and complete testing of individual machine sections. Thus the smooth and cost-efficient production of the system is guaranteed...
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TURCK BRASIL -
Sensor do Brasil
Rua Jordão Schiavetto, 436 Hortolândia / SP - Brasil / CEP 13184-080 Tel. : (00 55) 19 3897-9400 Fax. : (00 55) 19 3897-9416 Email: turck@turck.com.br |
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