4210 Flow Meter
Section 2 Programming
2-21
tips. (See Rain Gauge, page 2-26.) The port values appear in a
comma-separated values format. Each data field is preceded by a
two or three-character type identifier. The table lists the type
identifiers. Note that the flow meter’s current time and the
sample event time stamp appear as a number in standard
spreadsheet format (days since 1900). The supported baud rates
are 9600, 4800, 2400, and 1200 (no parity, eight bits and one stop
bit).
2.6.3 Periodic Output (Use a special RAIN GAUGE connector cable—contact the
factory for assistance.) Note that the periodic output will ter-
minate during phone connection and when the interrogator cable
is connected.
CAUTION
It is important to use CHECKSUM if you plan to use internal
modems or the interrogator. The UART is shared with these
devices.
If you select SERIAL OUTPUT from the OPTIONAL OUTPUTS
menu, the following display will appear:
Selection of OFF from this menu will disable this feature, and
there will be no further references to it. The Serial Output data
appears on the Interrogator connector of the flow meter. You
should not use a standard interrogator cable for this application,
as the sense line in the standard cable is shorted to ground.
Selection of ON from this menu will enable the feature and cause
the following display to appear:
After you select the appropriate baud rate, the program will
advance to the following menu:
This menu lets you select how often the flow meter transmits the
ASCII text string.
Following is an example of a string showing all options: (Note
that three lines are shown here; this is due to the confines of the
text column. In actual practice, there are no carriage returns in
the text string.)
DE,“TheresaStreet”,4250ALPHA4,ID,0721577657,MO,4250,TI,35317.343715,BV,12.3,LE,0.1000,VE,
0.1225,FL,0.001555,VO,2.199325,FV,2.199325,RV,0.000000,SV,2.195539,SS,1,B0,35317.307384,B0,3
5317.269907,B0,35317.232593,CS,10819
PERIODIC SERIAL OUTPUT
• ON • • OFF
SELECT BAUD RATE (N81)
• 9600 • • 4800 • • 2400 • • 1200 •
SERIAL OUTPUT INTERVAL
• 15 SEC • • 1 MIN • • 5 MIN • • 15 MIN •
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