Xylem H-310 - Manual (Page 38)

D-6 Appendix D H-310 Extended Commands
H-310
buffer. With the data in the sensor data buffer now you can view the current slope by issuing a
"D" command.
Example of a "User Units Offset" command:
Command Response Time Values Description
"aXRO!" "a0021" 2 sec 1 Load sensor buffer with the
User Units Offset coefficient
D.7 Change Sensor Output Mode
The change sensor output mode commands facilitate the changing of the sensors output mode.
The default mode is 8 second SDI-12 with the option of switching to 1 second SDI-12
measurements.
Standard RS-232 and looping RS-232 outputs are also possible on standard H-310s. These
outputs require additional hardware and instructions. Please consult DAA for details on the RS-
232 output options.
D.7.1 Query Sensor Speed Command
Command Response Description
"aXSQ!" "a,ccc,fff,sss" Load sensor buffer with sensor speed status
Where:
a Is the sensor address (0-9,*)
XSQ Are upper-case ASCII characters
ccc Is the current sensor measurement speed (in seconds)
fff Is the fast mode measurement speed (in seconds)
sss Is the slow mode measurement speed (in seconds)
Example of a "Query Sensor Speed" command:
Command Response
"aXSQ!" "a,008,001,008"
| | +-Slow Mode
| +-----Fast Mode
+---------Current Mode
The query sensor speed command allows the user to interrogate the H-310 to determine the
current mode status.
D.7.2 Set Sensor Measurement Speed Fast