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RPT 301 User Manual 17
K177 Issue No. 3
3.6 Detailed Command Definitions
Measurement Commands
R - Return stored reading
This command retrieves the current stored reading, as the reading is the
stored and filtered (if the filter is selected) there will be no delay in the
reply.
Command: R
Reply: nnnnnnn<SP>UNITS
Where:
‘nnnnnnn’ is the stored reading as a floating point
number ‘Units’ are the units for nnnnnnn (i.e. mbar,
mH
2
O, psi etc.)
G - Get reading
This command initiates a new measuring cycle. The reading is not
returned by this command, string ‘G’ and ‘R’ together to return the
reading (i.e. G;R<CR>). The instrument proceeds to the next command
after the end of the measurement cycle (see specification for duration)
or in the event of a reading failure (fault condition) after a time-out of
approximately 2 seconds. The command synchronises the measurement
cycle with an external event.
Note: Use of the G command overrides any filter that has been
selected. The reading obtained is passed without filtering
to the reading store.
Command: G
Reply: None
Result: Initiates new measurement cycle
A - Auto send reading
This command places the instrument into a mode where the value
currently held in the reading store is sent to the control computer with
a specified interval between each transmission. Auto send is terminated
by any following command.