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For each input one of eight polynomials can be selected for calculation to
engineering units. None can be selected as well. Please, note that eight polynomials
are common for all analog and digital units.
Last parameter for analog inputs is the ratio. Ratio is only checked for appropriate
analog input. Ratio is used primary for PT100 measurement. If ratio is selected, it's
output value is calculated as ratio of selected analog input voltage measured to
analog input 1 voltage input. Only then polynomial calculation is applied. Ratio
option is available for two analog inputs only.
Analog inputs 7 and 8 can only be setup for single ended, 12 bit resolution, unipolar
input, 2500mV range (3 Volt allowed). Polynomial coefficients are available.
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