Vega INSYS Modem GPRS 5.0 Bedienungsanleitung PDF herunterladen (Seite 91)

INSYS GPRS 5.0 serial GPRS General

8.8 Calculation Examples for Data Transmission via GPRS

8.8.1 Application description

8.8.1.1 Design of the entire system

Data logger

INSYS

GPRS

DEVICE

RS232

GSM/GPRS Net Internet

DSL / Modem

INSYS

vitual

COM-

Port

control center

software

control center computer

The system consists of a data logger with 8 digital inputs and 4 analogue inputs.

The received data can be output in adjustable intervals at the RS232 interface.

The evaluation software at the control center computer will either communicate

directly with the data logger via the RS232 interface, or via leased line modems

for remote applications.

To save investment and maintenance costs (rent, ...) when using leased line mo-

dems, the connection should be made via a transparent GPRS modem.

This is what the INSYS GPRS 5.0 serial is used for. It is also used for leased line op-

eration, i.e. after being switched on it will automatically attempt to establish a

connection with the remote terminal, the INSYS virtual COM port. As soon as the

connection is established, all user data from and to the data logger are transmit-

ted via a transparent TCP/IP connection. No adjustment is required for the data

logger and the control center computer.

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Vega INSYS Modem GPRS 5.0 Bedienungsanleitung Seite 91