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The
GSM-Remote terminal unit RTU-900 is a fdevelopment and used as
universal input/output unit. The state of the digital and
analog inputs will be transmitted by a GSM-modem to the
control centre. This control centre can receive the data
through the GSM-network as well as through the standard public
telephone lines.
For
single application a second unit can be used and it provides
the status of the digital inputs via relays.
A
special developed ASCII-Protocol is used.
For
larger networks a adjustment to the existing protocols will be
done. This depends on the existing control centre. Principally
every protocol emulation according the IEC-standards are
possible. |
