47
When finished defining the connections of the outputs we continue with the connections of the
digital inputs.
When the system includes analog sensors as well, the connections list of the analog sensors will
follow the list of the digital inputs.
Analog sensors definition deserves a special attention since some kind of analog sensors are
treated differently than others. The analog sensors that are treated specially by the system are
those that are part of a group of sensors serving a special purpose. For example the analog
sensors included in a weather station, the sensors included in a THD interface and the sensors
connected to a pH/EC interface will not be defined individually sensor by sensor, but they get
defined automatically once the interface of those sensors is defined.
In the other cases the user needs to define the connection of each analog sensor the same way
the digital inputs and outputs connection is defined. However when the analog sensors are
connected through the single cable 2 wired RTU system the rules of addressing are tricky.
Details can be found in the manual “
DREAM 2W RTU SYSTEM 2007
”.
By use of the
CONSOLE
software the connections table of outputs and inputs can be exported
to excel and printed. A printed copy of the connections table can become very handy during the
connections process.
The water meter of
source B by interface 3 (2
wired) RTU 17 input 1
Fert meter 1 of Central site
1 by interface 1 (Local I/O)
input 3, no RTU.
The pressure sensor of line
8 by interface 4 (radio)
RTU 1 input 1.
