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Wireless technology enables the Formula terminals to communicate to the PC using RF instead of wired connection, allowing user to freely move, collect and transmit data without standard wired limits. RF satellites collect data from several RF Formula terminals and send them to the PC via RS-232 or RS-485 standard Sysnet network. Conforming to ETSI 300-220 standards, the Formula 433 MHz system requires no application for frequency use from the national telecommunications authorities. With its highly competitive price-to-performance ratio, the Datalogic 433MHz radiofrequency system is an excellent solution also for small and medium-sized firms requiring wireless communication at an affordable price. Formula 433Mhz supports monodirectional transmission for remote batch application with RF data downloading and bidirectional communication for simple data query between the terminals and the PC's database. The modular architecture of a standard Sysnet wired network allows direct integration with the Formula 433 MHz wireless network for hybrid, serial and radiofrequency, communications. RF satellites can interface, at the same time, different models of Formula RF terminals thanks to the standard protocols which use station-address paramenters to locate terminals. The Formula 433 MHz wireless network is managed in real time by the OLE for Formula software. OLE for Formula is an ActiveX (OLE Custom Control or OCX) object-oriented software module compatible with the OLE for Retail POS standard (by Microsoft). Integration into a Windows 95 or Windows NT applications is easy and the program is designed to hide the management complexity of the networks and terminals from the programmer’s view. It guarantees the Formula terminals a simple and practically instant integration with the written vertical applications, for example, Visual Basic, Visual C++ or Delphi (by Borland), but also with the horizontal applications that support the OLE standard such as Access, Excel, Paradox and FoxPro for Windows 95. |
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