Banner SureCross DX80 Wireless Networks - Manual (Page 26)

Advanced Topics
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 typically 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 represents 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
6 Temp °C Celsius, high resolution. Analog input for temperature devices such as thermocouples, RTD, and thermis-
tors. In high resolution mode, temperature = (Modbus register value) ÷ 20.
LCD: 0000.0C
7 Temp °F Fahrenheit, high resolution. Analog input for temperature devices such as thermocouples, RTD, and ther-
mistors. In high resolution mode, temperature = (Modbus register value) ÷ 20.
LCD: 0000.0F
8 Temp °C (Low
Res) Celsuis, low resolution. To measure a greater temperature range, use the low resolution unit. In low resolu-
tion mode, temperature = (Modbus register value) ÷ 2.
LCD: 0000.0C
9 Temp °F (Low
Res) Fahrenheit, low resolution. To measure a greater temperature range, use the low resolution unit. In low
resolution mode, temperature = (Modbus register value) ÷ 2.
SureCross User Configuration Tool (UCT)
26 www.bannerengineering.com - tel: 763-544-3164 Rev. G