Relationship Between The Offset/Gain Setting And The Digital Output Values - Mitsubishi Electric MELSEC A Series Manual

3. SPECIFICATIONS
3.3.3

Relationship between the offset/gain setting and the digital output values

(1) Resolution
Resolution is obtained using the following expression:
• Voltage input
Resolution =
2 0 0 0 ( f o r 1 / 4 0 0 0 s e t t i n g ) / 4 0 0 0 (f o r 1 / 8 0 0 0 s e t t i n g ) / 6 0 0 0 ( f o r 1 / 1 2 0 0 0
• Current input
Resolution =
2 0 0 0 ( f o r 1 / 4 0 0 0 s e t t i n g ) / 4 0 0 0 (f o r 1 / 8 0 0 0 s e t t i n g ) / 6 0 0 0 ( f o r
/
(2) Relationship between the maximum resolution and the digital output value
If the setting of offset/gain values causes the following, the digital value does
not change in increments of "1".
(Gain value) – (Offset value)
Figures 3.4 and 3.5 show the relationship between the offset/gain settings and
the digital output values.
The offset and gain values in these figures are those in the voltage and current
input characteristics figures in Sections 3.3.1 and 3.3.2.
(Gain value) – (Offset value)
(Gain value) – (Offset value)
i )
2000 /4000 /8000
3 − 6
MELSEC-A
× 1000 (mV)
× 1000 (µA)
< (Maximum resolution)