USER MANUAL [1.4]
Page 45
When new temperature sensors are connected, they are automatically assigned id from 0 to 7, which
they are transmitted to the server. In Wialon system, temperature sensor state is contained in parameter
“Temp_1wire_X”, X – sensor number.
I-button keys can be read simultaneously with the operating temperature sensors. In the Wialon
system, the key ID is stored in the "ID" parameter. Reading the key can be accompanied by an indication by
setting one of the outputs(U0-U3) to the "i-button"mode.
At the time of reading, the output is activated for a few seconds, then deactivated. The connection
diagram is shown in Fig. 8. When connecting an external indicator, it is necessary to take into account the
maximum output load current (540mA).
ATTENTION:
WHEN CONNECTING SENSORS USING A PARASITIC POWER SUPPLY
(TWO-WIRE CONNECTION CIRCUIT), THE OPERATION OF UP TO 3 SENSORS ON THE BUS
IS GUARANTEED.
