Xylem H-3342 - Manual (Page 25)

H-3342
SDI-12 Command and Response Protocol 3-13
3.13 Extended Read LCD_Digits and Write LCD_Digits
The LCD display can display the Stage in one of two formats: ±199.99 or ±19999. This
command is used to change the format. The default 2-digit format (±199.99) is used when
displaying the shaft position in units of feet or inches. The 0-digit format (±19999) format is
useful for display in millimeters (0 thru 19.999 meters).
Once a new value is written, a copy is sent to the sensor data buffer for verification. This data
can be viewed by using a subsequent "D" command. To read or verify the value any other time,
use the "XRLCD" command.
Command Response Description
"aXRLCD!" “a0011" Read LCD_Digits
"aXWLCDn!" “a0011" Write LCD_Digits
Where: a is the sensor address ("0-9", "A-Z", "a-z", "*", "?").
XRLCD are upper case characters.
XWLCD are upper case characters.
n is the new setting (0 or 2)
0 = ±19999.
2 = ±199.99
This command takes 001 seconds to complete and places 1 value in the data buffer. Use the
“aD0" command to collect and view the current value.
Example of a H-3342 Extended "Read LCD_Digits" command:
Command Response Time Values Description
"aXRLCD!" "a0011" 1 sec 1 Read LCD_Digits
Command Response Description
"aD0!" "a+2" Format is ±199.99
Example of a H-3342 Extended "Write LCD_Digits" command:
Command Response Time Values Description
"aXWLCD0!" "a0011" 1 sec 1 Write LCD_Digits
Command Response Description
"aD0!" "a+0" Format is ±19999.