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700-RSS
-QS
Rev 1
4 Feb
2019 |
Part # 18465
1) Connect the Radar to the data logger using the
wiring guide.
2) Confirm communication with the sensor, by entering the Send
Identification command:
a
I!
in which
a
is replaced with the SDI-12
address of the sensor (the example uses address 0, the default
address of the radar)
Command
0I!
Response
0I!013FTS-----RdrStg10198765
3A. SET RADAR PARAMETERS
PIN
WIRE
DESCRIPTION
GND
Black
Ground
12VDC
Red
10.6 to 16 VDC Input
DATA
White
SDI-12 Data
Bare
Shield Ground
SET STAGE UNITS:
The default stage units are feet. To change use:
a
XSUcc!
in which the
a
is replaced with the SDI-12 address of
the radar and
cc
is replaced with the abbreviated form of stage
units:
STAGE
UNITS
ABBREV
SLOPE VALUE
Feet
FT
1.0
Inches
IN
12.0
Metres
M
0.3048
Centimetres
CM
30.48
Millimetres
MM
304.8
Custom
CU
As Input by user
Example
(radar at SDI-address 0):
To change stage units to metres
Command
0XSUM!
Response
0
Adjusting stage units
will automatically
change the slope
TAKE MEASUREMENT:
a
M!
GET MEASUREMENT:
aD0
!
in which the
a
is replaced with the SDI-12 address of the
radar. Use the desired measurement (M, M1, M2, or M3).
Example
(radar at SDI-address 3):
Command
3M!
Command
3D0!
Response
30022
Response
3+3.899+1.000000
SET CURRENT STAGE:
a
XSHn!
in which the
a
is replaced with the SDI-12 address of the radar
and
n
is the stage reading.
Example
(radar at SDI-address 3, stage reading = 12.4):
Command
3XSH12.4!
Response
3
IMPORTANT!
Input the current stage reading in the same measurement
units which were previously set. Default units are feet. If unsure which units
of measurement are set, use the Get Stage Unit command (see Section 4)
In addition to the standard set of SDI-12 commands, the FTS Radar Range Sensor has custom SDI-12 commands (X commands) that
access specific features of the sensor. Refer to the Radar Stage Sensor Operating Manual (700-RSS-Man) for a full list and
explanation of the commands. In all commands, the
a
must be replaced with the SDI-12 address of the radar.
?!
Address query
Response will be SDI-12
address
a
Ab!
Change address
b
=the address to change to
a
XPMc!
a
XPM!
Set power mode
Get power mode
c
= H or L (H = high, L = low
a
XSU!
Get stage units
Refer to Stage Units table in
Section 3A
a
XAOn!
a
XAO!
Set analog offset
Get analog offset
n = desired output offset
Range of offset = 0.0 to 20.0
a
XASn!
a
XAS!
Set analog scale
Get analog scale
n=4-20 mA output scaling
value
3
SETTING UP WITH
NON-
AXIOM DATALOGGERS
4
USEFUL SDI-12 COMMANDS
