Scaling – Banner SureCross DX80 Wireless Networks User Manual
Page 74
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To track a register:
1. Enter the register number in the Tracked Register # field.
2. Select the destination registers for the calculated values using the unassigned registers listed at the bottom of the screen.
In the sample screen shown, register 1, Gateway IN 1, is tracked in one minute increments with 10 samples taken each minute. The
resulting average value is stored in register 257. The minimum value for the minute is stored in register 258 and the maximum value in
register 259.
As time passes, this register is continuously tracked and 10 sample values are acquired for each minute of operation. The average,
minimum, and maximum values change with the additional information. As more time periods are sampled, the minimum and maximum
values become averages of the lowest and highest values within each time period.
Scaling
Use the RF Devices > Scaling page to convert data stored in the I/O point register.
The converted data is written to the floating point register associated with that I/O point (see table below). Register values are multiplied
by the Scale and added to the Offset to product the data written to the floating point registers.
One example of scaling is to convert thermocouple inputs into temperature readings. Thermocouple inputs are multiplied by 20 before
being written to registers. To convert back to a temperature, enter 0.05 as the scale for that register. The value written to the floating point
register for that I/O register is the temperature.
Floating Point Registers
The floating point registers associated with each I/O point are assigned based on the following equation: 1000 + I/O# × 2 − 1. For exam-
ple,
SureCross Web Configurator
74
www.bannerengineering.com - tel: 763-544-3164
rev. -