These SDI-12 probes have been tested and are functional with the factory default settings.
MFG
Models
Technical Note
Acclima
SEN-SDI (TDT SDI-12 Soil Moisture Sensor)
SDI-12 and the Acclima TDT SDI-12 Soil Moisture Probe
Adcon Telemetry
HydraProbeII
AquaCheck
Sub-surface Probe
SDI-12 and the AquaCheck Sub-Surface Soil Moisture Probe
Decagon
MPS-2, MPS-6, 5TE, TS1, T8
SDI-12 and the Decagon 5TE Soil Moisture Probe
SDI-12 and the Decagon GS3 Soil Moisture Probe
SDI-12 and the Decagon MPS-2 Soil Moisture Probe
HSTI
HydraScout
SDI-12 and the HydraScout HSTI Probe
Sentek
EnviroSCAN
SDI-12 and the Sentek EnviroScan Soil Moisture Probe
6.6.6 Modbus I/O Registers for the DXM100-B2 I/O Base Board
The I/O base board stores the input and output values in Modbus holding registers. Since the I/O base board is defined as
a separate device, configure the DXM Controller to read or write the values on the I/O base board.
Base Board Input Connection
Modbus Register
Range
Description
1
0–65535
Universal input 1
2
0–65535
Universal input 2
3
0–65535
Universal input 3
4
0–65535
Universal input 4
Universal Input Register Ranges
Register Types
Unit
Minimum Value
Maximum Value
Discrete input/output
0
1
Universal input 0 to 10 V
mV
0
10000 *
Universal input 0 to 20 mA
µA
0
20000 *
Universal input temperature (–40 °C to +85 °C)
C or F, signed, in tenths of a degree
–400
850
Universal potentiometer
unsigned
0
65535
* Setting Enable Full Scale to 1 sets the ranges to a linear scale of 0 to 65535.
DXM100-B2 Controller Base Board Output Connection
Modbus Register
Range
Description
501
0–1
NMOS Output 1
502
0–1
NMOS Output 2
503
0–1
NMOS Output 3
504
0–1
NMOS Output 4
505
0–1
Switched Power 1 (5 V to 24 V)
506
0–1
Switched Power 2 (5 V to 24 V)
507
0–1
DC Latching Output 1
508
0–1
DC Latching Output 2
509
0–10000
Analog Output 1 (0-10.000 V)
510
0–10000
Analog Output 2 (0-10.000 V)
Modbus Configuration Registers for the I/O
Each input or output on the I/O base board has associated Modbus registers that configure its operation.
DXM100-Bx Wireless Controller Instruction Manual
www.bannerengineering.com - Tel: 763.544.3164
51