Input Parameter
Universal Input Configuration Parameter Modbus Registers to Write To
Universal Input 1
Universal Input 2
Universal Input 3
Universal Input 4
Sample Interval (high)
1002
1052
1102
1152
Sample Interval (low)
1003
1053
1103
1153
Switched Power Enable
Mask
1004
1054
1104
1154
Switched Power Warmup
1005
1055
1105
1155
Switched Power Voltage
1006
1056
1106
1156
Extended Input Read
1007
1057
1107
1157
Input Out-of-Sync Enable
1008
1058
1108
1158
Extended Input Read
The Extended Input Read is a bit field parameter that allows multiple inputs to be sampled with the same switch
power parameters.
If the bit field is set to 0x000F, the first four inputs are sampled after the switch power parameters are satisfied.
If the Extended Input Read parameter is set in the Universal input 1 configuration registers, set Universal inputs 2
through 4
Extended Input Read
and
Sample Interval
parameters to zero.
Input Enable
Set to 1 to enable the input. Set to 0 to disable the input.
Out-of-Sync Enable
To enable the input to continue operating when the device is out of sync with the master radio, set to 1.
To disable the input when the device is not synchronized to the master radio, set to 0.
Sample Interval (high), Sample Interval (low)
The sample interval (rate) is a 32-bit value (requires two Modbus registers) that represents how often the I/O board
samples the input.
The register value is the number of time units. One time unit is equal to 0.01 seconds.
For example, a Modbus register value of 1000 represents a sample interval of 10 seconds (1000 × 0.010 seconds =
10 seconds).
Switch Power Enable Mask
The Switch Power Enable Mask works with the warm-up and voltage parameters to define the switch power output.
The bit mask can select any number of switch powers.
0x0 - No switch power enabled
0x1 - Enable Switch Power 1
0x2 - Enable Switch Power 2
0x3 - Enable Switch Power 1 and Switch Power 2
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
Sure Cross
®
DXM100-Bx and DXM1000-Bx Wireless Controllers
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