Teledyne 4250 Installation And Operation Manual page 50

4250 Flow Meter
Section 2 Programming
2-22
Note
The information in the following section is provided for those
who can write their own software programs to process the data
transmitted from the Serial Output port. Special cables may be
required. Contact Teledyne Isco technical support for more
information.
Serial Output – Returning to the OPTIONAL OUTPUTS menu,
you will see the SERIAL OUTPUt option. This feature lets the
flow meter transmit the most recent values for all currently
enabled ports as ASCII text. You can then write a simple
program to retrieve this data periodically, or you can do it inter-
actively using a terminal program.
Command Line: (Use the INTERROGATOR connector.) The
lines of text contain the port values for each port that is turned
on. The DATA command will use a special command response
protocol. The following table provides the ASCII codes for port
types and standard units of measure.
Table 2-1 ASCII Output Codes
Code Parameter
DE Description
ID Unit specific identifier
MO Model
TI Time since 1900
BV Battery Voltage
LE Level
LSI Level Signal Strength
FL Flow
VO Volume
FV Forward volume
RV Reverse volume
SV Sampler Enabled Volume
RA Rain (rolls over every 255 tips) Tips
CR Current day's rain (tips since
midnight)
PR Previous day's rain (tips since
midnight)
PH pH
DO Dissolved Oxygen
TE Temperature
YPH YSI 600 pH
YDO YSI Dissolved Oxygen
YCO YSI 600 Conductivity
YSP YSI 600 Specific Conductance Millisiemens per centimeter
YSA YSI 600 Salinity
YTD YSI 600 Total Dissolved Solids Milligrams per liter
Units
String
Unsigned long
String
Days
Volts
Meters
0 - 100%
Cubic meters per second
Cubic meters
Cubic meters
Cubic meters
Cubic Meters
Tips
Tips
pH units
Milligrams per liter
Degrees Celsius
pH units
Milligrams per liters
Millisiemens per centimeter
Parts per thousand