Licence and registration free industrial frequency bands lend themselves well for wireless transmission of signals over short distances. But for large distances, it is difficult to get around using modems in conjunction with GSM/GPRS technology. Vega has two components, PlicsRadio and PlicsMobile, which make customised and cost-effective wireless communication solutions possible.
PlicsRadio for local areas
PlicsRadio wirelessly transmits 4-20 mA/HART signals as well as switching states over distances up to one kilometre using the 2,4 GHz radio band. The solution is ideal in cases where laying signal cables from the sensors to the signal conditioning instruments is not possible, or too expensive, and it overcomes obstacles such as railroad tracks or rivers quickly and cost-effectively. With the flexibility of PlicsRadio existing systems can be easily extended without interruption and modifications carried out at any time.
PlicsMobile for remote areas
Vega has been using remote data transmission in conjunction with its own signal conditioning instruments for years. These supply the sensors, deliver intrinsically safe signals when required and ensure that standard modems (analogue, ISDN or GSM/GPRS) can be accessed.
The transmitting and receiving unit PlicsMobile fits seamlessly into Vega’s modular plics concept and is available either as an integrated auxiliary module for the new plicsplus sensor generation or as a standalone instrument PlicsMobile T61.
A SIM card and integrated modem allow global data transmission using the GSM/GPRS service, including remote diagnosis and teleservice. Another plus is the integrated energy management system with independent battery supply for sensor and emitting unit.
The solution complements signal conditioning instruments particularly well in applications like vendor managed inventory. Other uses include applications in which measurement and evaluation are located far apart, eg, deep wells, high containers or mobile silos.
With these two options, Vega can cover practically any application in wireless communication.
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