Mitsubishi MELSEC iQ-F, User Manual

Page: 59 / 182

4 FUNCTIONS
4.11 Digital Clipping Function
57
4
Setting example
Ex.
When the following values are used for multiple input module with the input range of 0 to 5 V
When the digital clipping function is used with the scaling function, and shift function, scale conversion and
shift-and-add are performed on the value obtained after digital clipping.
Item Setting
‘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 shift amount’ (Un\G472) 2000
‘CH1 Digital clipping enable/disable setting’ (Un\G510) Enable (0)
(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)
Input voltage (V) Digital output value Digital operation value
-0.12 -768 4000
0 0 4000
+1 +6400 6000
+2 +12800 8000
+3 +19200 10000
+4 +25600 12000
+5 +32000 14000
+5.12 +32767 14000
(2)
(1)
(3)
(4)
+32000
+32767
+14000
+12000
+2000
-768
+4000
0
0 5
Analog input voltage (V)