6.2 Applying Power to the DXM100-Bx Wireless Controller
Apply power to the DXM100-Bx Wireless Controller using either 12 to 30 V dc or a 12 V dc solar panel and 12 V sealed
lead acid battery operating together.
The DXM100 has three power input and three power output options:
•
Input Power:
◦
12 to 30 V dc
◦
12 to 30 V dc solar panel
◦
12 V dc sealed lead acid battery with automatic charging
•
Courtesy Output Power Supplies:
◦
One 5 V dc fixed
◦
Two 5 V dc or 16 V dc (DXM100-B1 models) or Two 5 V to 24 V dc (DXM100-B2 models)
The DXM Controller continuously monitors the health of the power inputs. If a power input fault is detected, the DXM
Controller automatically switches over to battery with continuous uninterrupted operation.
If the incoming voltage drops below 11.2 V dc, the cellular modem does not turn on and will not turn on until the voltage is
above 11.8 V dc. A text file (CmVMon.txt) on the internal micro SD card saves the periodic sampling of the incoming
voltage. If cellular operation stops because of voltage, it is logged in this file.
Pin
Description
Pin 1
No connection
Pin 2
12 to 30 V dc input (+) or solar panel connection (+)
Pins 3, 5, 8, 17, 26, 29
Main logic ground for the DXM100-Bx Wireless Controller
Pin 4
Solar or backup battery positive input. Battery voltage must be less than 15 V dc. Use only a sealed lead acid (SLA)
battery.
6.2.1 Using Courtesy Power or Switch Power
Pin 18 of the DXM100-Bx Wireless Controller is a constant power source that supplies 5 volts up to 500 mA.
Pins 21 (switch power 2) and 30 (switch power 1) are switched power outputs. Configure the switched power outputs using
Modbus registers. The output voltage can be selected and is controlled using a Modbus register on the I/O board (Modbus
slave ID 200). The voltage options are:
•
5 volts or 16 volts for DXM100-B1 models; or
•
5 to 24 V dc for DXM100-B2 models.
Turn the switched power on or off using the output register 505 for switch power 1 or 506 for switch power 2. For
continuous power, set the Default Output register to 1, then cycle the power.
Switch Power Enable Register
Voltage Register
Default Output Register
Output Register
1 (pin 30)
2201
Write a 0 to turn OFF
Write a 1 to turn ON (default)
3601
Write a 0 to select 5 V (default)
Write a 1 to select 16 V
3602
505
2 (pin 21)
2251
Write a 0 to turn OFF
Write a 1 to turn ON (default)
3621
Write a 0 to select 5 V (default)
Write a 1 to select 16 V
3622
506
Enable Register
Configuration registers that turn on the ability to use the switched power output.
Default setting = ON
Voltage Register
Configuration registers that define the output voltage to the switched power output.
Default setting = 5 V
Default Output Register
Configuration registers that turn on the switched power outputs for continuous power out.
Set register to 1 for continuous power. Cycle power if this register is changed.
Default setting = 0
DXM100-Bx Wireless Controller Instruction Manual
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