Carlo Gavazzi Ag

Ole Skovgaard

Jens Neigard

Kent Soerensen

The present invention relates to an electrical circuit arrangement having at least two local transmitting units (2) for receiving and coding local measuring signals and for transmitting the coded measuring signals to a central unit (1), which local transmitting units (2) respectively have a comparator (12) for comparing the local measuring signal with a reference value and trigger (13) for generating a binary signal to be transmitted to the central unit (1). In order to achieve reliable and central control of the reference value which is as simple as possible in conjunction with simultaneous reception, transmission and processing of a plurality of measured values not necessarily independent of one another, it is provided that the central unit (1) has a multiplex channel generator (4), control for fixing the reference value and multiplex receiver means (5, 6, 7, 8) for receiving and processing the binary signals transmitted by the local transmitting units (2), and that the local transmitting units (2) respectively have processor (9, 10, 11) for processing the reference value fixed by the control and multiplex transmitter (14) for transmitting the binary signal generated by the trigger (13) to the multiplex receiver (5, 6, 7, 8) of the central unit (1).

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Hadsten, Denmark

Ole Skovgaard