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12.5 Commands
The following commands can be sent from a PC to the WP-81. Note that
<cr> denotes carriage return and <lf> denotes a line feed.
Action
Request current
data
Command
?D<cr>
Request logged data
?R<cr>
Erase logged data
?E<cr>
Request status
information
?S<cr>
Request GLP
information
?G<cr>
Notes
Returns the current Conductivity/
TDS, pH, Temperature, date and
time from the WP-81. The log
number returned is set to Zero.
Returns all logged records from the
WP-81 memory. The data ends with
the message ENDS<cr>
Erases all logged records from the
WP-81 memory. Returns the
message ERASED<cr> to confirm
that the records have been erased.
Returns the model name, firmware
version number, instrument serial
number and number of logged
readings in memory,
eg: WP81ŒŒV1.0ŒS1234Œ9999<cr>,
where Πare spaces. Note that the
number of logged readings is rightjustified.
Returns all calibration GLP
information, plus the instrument
model and current date (see section
12.6 for data format and
handshaking).