Rs232 Output - Barnstead SUPER-NUOVA HP133420-33 Operation Manual And Parts List

O
PERATION
18

RS232 Output

An RS232 port is available on the SUPER-NUOVA to output
elapsed time, speed, and temperature data. The data is print-
ed once every second when the unit is powered on (displays
on). A comma separates each piece of data so that it may
easily be imported into a spreadsheet as CSV (Comma
Separated Values). The actual data stream sent every sec-
ond consists of: Elapsed Time, Stirring Setpoint, Actual
Stirring Speed, Heating Setpoint, Actual Temperature. (Actual
temperature refers to top plate temperature, or remote probe
temperature if a probe is being used.)
Elapsed time is a 1 second counter that rolls over to zero
again every 12 hours (43,200 seconds). The speeds are
given in RPM, and the temperatures are given in degrees
Celsius. When the unit is first powered on (displays turn on)
a header will print indicating the columns.
In order to communicate with the SUPER-NUOVA, the com-
puter connected to it needs to be set with the following
parameters:
• BITS PER SECOND: 57,600
• DATA BITS: 8
• PARITY: NONE
• STOP BITS: 1
• FLOW CONTROL: NONE
Also, the first time a unit is plugged in, a paragraph of diag-
nostics information will be sent via RS232 and can be viewed
with a terminal program. An example of the data that is sent
is:
Software Version: 1.00
Stir Hours: 0
Heat Hours: 0
Calibration Set Point: 70
Calibration Offset: 0.0
Stir Hours and Heat Hours are kept internally in 1 minute
increments and displayed to the nearest hour. The
Calibration Set Point is the temperature that the unit was cali-
brated at when calibration was performed. The Calibration
Offset is the offset determined at the calibration temperature.