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Xl™ series – Xylem XL Series H-522 - Plus User Manual

Page 142

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14-26 SDI-12 Operations

XL™ Series

Example of a "Write User Units Offset" command:

Command

Response

Time

Values

Description

---------------

-----------------

-------

--------

-----------------

"aXWO12.34!"

"a0021"

2 sec

1

Write user units offset
coefficient

The Write User Units Offset command loads the "User Units Offset" coefficient term. The new
value is stored in non-volatile EEPROM within the sensor. A copy of this value is placed in the
sensor data buffer for verification. It can be viewed by using the "D" command. To verify the
"User Units Offset" at any other time, use the "Read User Units Offset" command.

Command

Response

Description

-------------

------------------------- ---------------------------

"aXWOddd!"

"atttn"

Write User Units Offset coefficient

Where:

a

Is the sensor address ("0" to "9", "A" to "Z", or "*").

XWO Are upper-case ASCII characters.

ddd

Is the new User Units Offset value. The input format is very flexible. Some
examples are shown below.

20.095
0.195
7.984E+10
167.824E5
005.9357E-7
500

ttt

Is a three digit integer (000-999) specifying the maximum time, in seconds, the
sensor will take to complete the command and have data available in its buffer.

n

Is a single digit integer (0-9) specifying the number of values that will be placed in
the data buffer.

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