Mitsubishi Electric NZ2EX2B-60AD4 - Page 122

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(4) Example of the combined use of the digital clipping function, the scaling
function, and the shift function
Ex.
For the channel with the set input range of 0 to 5V, of the main A/D converter module, settings are made
as follows:
•"CH Scaling enable/disable setting": "0: Enable"
•"CH Scaling upper limit value": 12000
•"CH Scaling lower limit value": 2000
•"CH Digital clipping enable/disable setting": "0: Enable"
•CH Shifting amount to conversion value (RWw2 to RWw5): 2000
1. Set "Method selection" to "Parameter write".
"CC IE Field Configuration" window  Select the main A/D converter module from "List of stations"
 [CC IE Field Configuration]  [Online]  [Parameter Processing of Slave Station]
2. In "Basic module parameter", set "CH A/D conversion enable/disable setting" to "0: Enable".
Input voltage (V) Digital output value Digital operation value
-0.12 -384 4000
0 0 4000
1 3200 6000
2 6400 8000
3 9600 10000
4 12800 12000
5 16000 14000
5.12 16383 14000
1) Digital output value
Digital clipping
Output range: -384 to 16383
Output range: 0 to 16000
Shift-and-add
Adds 2000 to the value
after scaling
0
0
5
Analog input voltage (V)
4) Digital operation value
Digital output value 1) Digital output value
3) Value after scaling
4) Digital operation value
2) Value after digital clipping
3) Value after scaling
2) Value after digital clipping
Scaling
Upper limit value: 16000 12000
Lower limit value: 0 2000
14000
16000
16383
12000
2000
-384
4000