Offset/Gain Processing - Panasonic FP7 User Manual

6.4 Offset/gain processing

FP7 Analog Output Unit User's Manual
Offset and gain adjustment can be used to correct offset or scaling errors.
The offset and gain adjustments are made to the converted data before it
is written to the CPU's output area.
Digital input Offset ad-
values justment
 The offset adjustment (zero-point adjustment) is used to remove the
offset error between different components. If the analog output value is
50V for a digital input value of n=0, select an offset value of -50 to
correct the analog output value to 0V.
Q Offset adjustment
 The gain value settings are used as a function to adjust small scale er-
rors between different components. The gain value slope can be
changed in a range of 0.9x–1.1x.
Q Gain adjustment
W Gain 1.1x
E Gain 0.9x
 Offset and gain processing is executed on a channel-by-channel basis.
Gain adjust- Corrected digital
ment input values
Unit configuration
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