Mitsubishi Electric R60AD8-G - Page 55

1 FUNCTIONS
1.8 Shift Function
53
1
Ex.
When the following values are used 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
*1 These values are also applied to the case of digital output values (32 bits).
When the shift function is used with the digital clipping function and scaling function, shift-and-add is
performed on the value obtained after digital clipping and scale conversion. Therefore, the range of the digital
operation value is determined as -32768 to 32767.
For a setting example of when the digital clipping function, scaling function, and shift function are used
together, refer to the following.
Page 55 Setting example
(1) 'CH1 Digital output value' (Un\G400)
Scaling
0 to 32000

2000 to 12000
(2) Value after scaling
'CH1 Conversion value shift amount' (Un\G472) "+2000"

(3) 'CH1 Digital operation value' (Un\G402)
Voltage input Digital output value
*1
Value after scaling Digital operation value
0 0 2000 4000
1 6400 4000 6000
2 12800 6000 8000
3 19200 8000 10000
4 25600 10000 12000
5 32000 12000 14000
32000
14000
12000
2000
4000
0
5
0
(3)
(1)
(2)
Analog input voltage (V)