Switch Power Voltage
The Switch Power Voltage parameter defines the output voltage of the switch power output.
This parameter applies only to inputs using switched power. If switch power is not used with an input, use the
Courtesty Power Voltage parameter to control the voltage.
See Voltage entry for Modbus register values used to select the output voltage.
Switch Power Warm-up
When an input controls power to external sensors, the Switch Power Warm-up parameter defines how long power
is applied to the external sensor before the input point is examined for changes.
The register value is the number of time units, and a time unit is 0.01 seconds. For a warm-up time of 1 second,
this parameter value is 100 (0.01 seconds × 100 = 1 second).
Associate Universal Input 1 with Switch Power 1
To associate universal input 1 with switched power 1, follow these instructions. Set Input 1 to sample every 60 seconds,
with a warmup time of 10 seconds.
1. Verify Switched Power 1 Output Enable is off (0). Set Modbus Register 2201 = 0
2. Set the Sample Interval to 1 minute. Modbus Registers 1002 = 0, 1003= 6000 (0.01 seconds × 6000 = 60
seconds).
3. Set the Switched Power Enable Mask to use Switch Power 1. Modbus Register 1004 = 1
4. Set the Switched Power Warm-up time to 10 seconds. Modbus Register 1005 = 1000 (0.01 seconds × 1000 =
10 seconds).
5. Set the Switched Power Voltage to 16 volts. Modbus Register 1006 = 1.
5.2.3 Connecting a Battery to the DXM Controller
When attaching a battery to the DXM Controller as a backup battery or as a solar battery, verify the charging algorithm is
set properly. The factory default setting for the battery charging algorithm assumes you are using 12 to 30 V dc to
recharge the battery.
The charging algorithm is designed to work with a sealed lead acid (SLA) battery only.
•
When using 12 to 30 V dc, connect the 12 to 30 V dc + to pin 2 and connect the ground to pin 3.
•
When using main dc power with a back up battery (default configuration), connect the incoming main power pin 2
(+) and to pin 3 (-). Connect the 12 V sealed lead acid battery to pin 4 (+) and pin 5 (-). The incoming main power
must be 15 to 30 V dc to charge the battery.
•
When using a solar panel, connect the solar panel output to pin 2 and connect the ground to pin 3. Connect the 12
V dc SLA battery to pin 4 (+) and pin 5 (-). To change the charging algorithm, refer to
on page 23.
Modbus Slave ID
Modbus Register
Description
200 *
6071
Battery backup charging algorithm.
0 = Battery is recharged from a solar panel
1 = Battery is recharged from 12 to 30 V dc (default)
* The Modbus Slave ID for the base board is set at the factory and may be changed using the base board DIP switch
settings.
5.2.4 Supplying Power from a Solar Panel
To power the DXM100-Bx Wireless Controller from a 12 V dc solar panel, connect the solar panel to power pins 2(+) and
3(-). Connect a 12 V dc sealed lead acid (SLA) rechargeable battery to pins 4(+) and 5(-).
The factory default setting for the battery charging algorithm assumes you are using 12 to 30 V dc power to recharge the
battery. If the incoming power is from a solar panel, you must change the charging algorithm.
To change the charging algorithm from the menu system:
1. From the LCD menu, select Update > Power.
2. Use the up/down arrows to select "SOLAR" power.
To change the charging algorithm by writing to Modbus register 6071 on the I/O base board (Slave ID 200):
1. Write a 0 to select the solar power charging algorithm.
DXM100-Bx Wireless Controller Instruction Manual
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