YSI Data Scout Advanced - Manual (Page 11)

This optional variation of the command refuses to execute if more than one transducer is currently defined on the Site Net Map. The
“normal address” variation works at anytime for any single highlighted transducer.
Two strategies for building a complete transducer site network, when faced with multiple transducers set to unknown addresses,
protocols, and baud rates, is to connect each one to the computer’s specified serial port, one at a time, and follow one of the
procedures below (labeled Methods 1 and 2). In each case begin with the Configure | Xducer Site Network command to set the
“starting” communications parameters (port, protocol, echo requirements, and baud rate) of the serial network connected to this
transducer.
Method 1:
„ Set the assumed communication parameters under Configure │Xdcuer Site Network. The Level Scout will always
utilize SDI-12 protocol. The default baud rate from the factory is 19200.
„ Clear the Site Net Map with the File | New Site Net command.
„ Connect one transducer to the selected com port and use the Configure | Add Xducer (to End) command to specify
one transducer with the address 0 (the default factory address, a good starting assumption).
„ Skip setting the long Name of transducer (leave it blank).
„ Use Query to verify that the transducer is really set to correct address and working at the current specified baud rate.
„ If this fails (times out), then try the Who Are You? command to discover its address, which will also automatically
add that address to Site Net Map’s entry row. Then, use Query again to verify the transducer is working. If not,
repeat all the steps above at different baud rates and/or Com ports.
Method 2:
„ Set the assumed communication parameters under Configure │Xdcuer Site Network. The Level Scout will ALWAYS
utilize SDI-12 protocol. The default baud rate from the factory is 19200.
„ Clear the Site Net Map with the File | New Site Net command.
„ Connect one transducer to the selected com port and click the Auto Discover button to start an automatic process
that steps through all the valid addresses of the selected protocol at the selected baud rate.
„ If a transducer responds correctly to any address, that transducer is automatically added to the Site Net Map. Once
this occurs (a new row appears on the map) select the Stop button to terminate the continuing auto-discovery
process.
„ Use Query to verify that the new transducer is working correctly.
„ If this fails (times out), repeat all the steps above at different baud rates.
Once you are successful in determining the correct address and baud rate of each transducer remove it from the network and label it.
Repeat the procedure for each of the other transducers, one at a time, insuring that each has (or is assigned) a unique address and
common baud rate.
Final Network Assembly:
„ Interconnect all the transducers together in a valid multi-drop network.
„ Clear the Site Net Map with the File | New Site Net command.
„ Connect the entire network to the selected com port and click the Auto Discover button to step through all the valid
addresses of the selected protocol at the selected baud rate.
YSI Incorporated Data Scout Advanced 7