Banner SureCross DX80 Wireless Networks - Manual (Page 14)

crete I/
O) ple high and sample low parameters are used
to create a filter to avoid unwanted input transi-
tions. The default value is 0, which disables this
feature. The value range is 1 through 255.
Pulse
Width The pulse width determines the length of time,
in seconds, that a digital output is active (1) be-
fore returning to zero. Select 0 to disable this
feature.
ered OFF. A typical hysteresis value is 10% to
20% of the unit’s range.
Threshold
ON point
Time
Input V
alue
Input
Hysteresis
OFF point
In the example shown graphically, the input is
considered on at 15 mA. To consider the input
off at 13 mA, set the hysteresis to 2 mA. The in-
put will be considered off when the value is 2
mA less than the threshold.
Units Defined
The units parameter defines the range and/or type of data value associated with an input or output.
Selecting Units from within any configuration tool changes the units definition of several parameters, including threshold, hysteresis, and
delta. For example, if the units are 0-20 mA, the threshold, hysteresis, and delta values are entered as milliampere values. Selecting
Temp C changes the threshold, hysteresis, and delta units to degrees Celsius.
Signed values range from −32768 to +32767 and allow for the measurement of negative values. Signed values are typically used for
measuring temperatures. Signed values are stored as two's complement values.
Unsigned values range from 0 to 65535 and are used to measure values that do not go below zero, such as 4 to 20 mA, distance, or a
counter.
Input Units
Units Description Definition
0 Raw Displays the raw A/D conversion data with data ranges from 0 to 65535. This units type is typical-
ly used only for factory calibration.
LCD: Raw A/D hex value
1 4 to 20 mA Analog unit. Modbus register contents are scaled such that 0 represents 4 mA and 65535 repre-
sents 20 mA.
LCD: 4.00mA–20.00mA
2 0 to 20 mA Default analog input unit. Modbus register contents are scaled such that 0 represents 0 mA and
65535 represents 20 mA.
LCD: 0.00mA–20.00mA
3 Discrete (ON/OFF) Default discrete input unit.
LCD: ON/OFF
4 0 to 10V (Volts) Analog input using 0 to 10V instead of current. Modbus register contents are scaled such that 0
represents 0V and 65535 represents 10V.
LCD: 0.00V–10.00V
SureCross Web Configurator
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