YSI WaterLog Series, Руководство пользователя

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Send SHEF Headers: The system uses this option to see if SHEF codes are to be included in the
data transmission. SHEF stands for Standard Hydrometeorological Exchange Format. This is a
documented set of rules for coding of data in a form for both visual and computer recognition.
The SHEF code is typically a two character code that represents the data. For example, the
standard SHEF code for Stage data is HG, indicating the Height of the Gauge, or TA for ambient
temperature. The SHEF codes may be useful in decoding and although SHEF codes can be
defined and transmitted, no attempt was made to hold to the SHEF code format. Sending the
SHEF code will add time to the transmission so it may cut down on the amount of data able to be
transmitted.
Data Sent First: Defines whether the Newest or Oldest data should be sent first, appearing at the
top of the transmission data. Some decode programs only accept the data in one format and not
the other.
Data Order: In conjunction with the Data Layout, this option defines how the data will be
presented. Regarding the Default layout, the data will be sent based on each transmitted line
representing a single scan or each transmitted line representing a single channel or sensor.
Scan Order: Each line of data represents one scan and one value from each Task.
HG TA VB
18.34 22.78 12.45
18.76 22.45 12.44
18.97 22.15 12.45
19.43 22.02 12.45
SHEF headers turned on.
Stage, Temp, and Battery values in each line.
Each line is a different scan at some defined
time interval.
Channel Order (Default): Each line represents all the data from a single Task.
HG 18.34 18.76 18.97 19.43
TA 22.78 22.45 22.15 22.02
VB 12.45 12.44 12.45 12.45
Each line has all data from a single
Task. Each value in the line is scanned
at different times based on scan rate.
If the Canada layout is chosen, Channel Order is forced, though a different style is used.
Channel Order (Canada): Only a single continuous line of data is returned.
:HG 5 #15 18.34 18.76 18.97
19.43 :TA 5 #15 22.78 22.45
22.15 22.02 :VB 5 #15 12.45
12.44 12.45 12.45
Each Task begins with a colon (:)
followed by the SHEF header, the
minutes since the last scan, the scan
rate in minutes, followed by the
measured values.
System 5000
Outputs 6-15
TM