Appendix 2 Accuracy - Mitsubishi Electric MELSEC- iQ-R Series Startup User's Manual

Appendix 2
The accuracy of A/D conversion is the accuracy for the maximum value of digital output value. The accuracy is given by the
following formula:
Accuracy = (Reference accuracy) + (Temperature coefficient)  (Temperature variation)
• Reference accuracy: The accuracy at an ambient temperature when the offset/gain setting is configured (0.1% (32
digits))
• Temperature coefficient: The accuracy based on a temperature change of 1 (0.0035%/ (1.12 digits))
An output characteristic change resulting from a change in the offset/gain setting or the analog input range does not sacrifice
the reference accuracy and temperature coefficient, which are maintained within the described range of the performance
specifications
(except for the conditions under noise influence).
Ex.
Accuracy when the temperature changes by 5, from 25 to 30
(0.1%) + (0.0035%/  5) = 0.1175% (38 digits)
digit
32000
0
0mA
digit: Digital output value
(1) Voltage fluctuation range
Accuracy
20mA
(1)
APPX
45

Appendix 2 Accuracy

A