Xylem 4015 SDI-12 TO ANALOG CONVERTER User Manual
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2.0 OPERATION
Programming of the 4015 is performed over the SDI-12 connection. If the data
collection platform (master) for your system does not provide a “transparent”
communications mode, connection can be provided using a Model 4021 SDI-12
to RS232 adaptor. The default device address for the 4015 is H (upper case).
The 4015 will poll the sensor (even in the listen only mode) when the “Poll”
button is pressed.
2.1
CONNECTIONS
4015 SDI-12 Commands
The 4015 responds to all basic SDI commands. The 4015 is set at the factory for SDI-12
address H. This address is for extended commands and can be changed to any address
except that being used for the sensor address. All command and response characters are
in ASCII format, 1200 baud, even parity. Refer to
specifications.
The 4015 will adjust its output when the specified sensor address and parameter is
detected on the SDI-12 bus. If the desired parameter is not found, the 4015 will not
update the output. In the event that the output is set to 4-20mA and the 4-20Alarm is
enabled, the output will drop to zero mA when the desired parameter is not found.