Mitsubishi Electric MELSEC iQ-R User Manual page 48

Setting example
Ex.
When the following values are set for the A/D converter module with the input range of 0 to 5V
• 'CH1 Scaling enable/disable setting' (Un\G504): Enable (0)
• 'CH1 Scaling upper limit value' (Un\G506): 12000
• 'CH1 Scaling lower limit value' (Un\G508): 2000
• 'CH1 Conversion value shift amount' (Un\G472): 2000
• 'CH1 Digital clipping enable/disable setting' (Un\G510): Enable (0)
32767
32000
14000
12000
(4)
4000
2000
0
-768
0
Input voltage (V)
-0.12
0
1
2
3
4
5
5.096
When the digital clipping function is used with the scaling function, shift function, and difference conversion
function, the scale conversion, shift-and-add, and difference conversion are performed on the value obtained
after digital clipping.
1 FUNCTIONS
46
1.8 Digital Clipping Function
(1)
(2)
(3)
Analog input voltage (V)
5
Digital output value
-768
0
6400
12800
19200
25600
32000
32767
(1) 'CH1 Digital output value' (Un\G400)
Digital clipping
-768 to 32767

0 to 32000
(2) Value after digital clipping
Scaling
0 to 32000

2000 to 12000
(3) Value after scaling
'CH1 Conversion value shift amount' (Un\G472)
"+2000"

4000 to 14000
(4) 'CH1 Digital operation value' (Un\G402)
Digital operation value
4000
4000
6000
8000
10000
12000
14000
14000