Shift Function - Mitsubishi Electric NZ2EX2B-60AD4 User Manual

8.12

Shift Function

This function adds (shifts) the set conversion value shift amount to a digital output value. When the conversion value
shift amount is changed, it is reflected to the digital operation value in real time. Therefore, fine adjustment can be
easily performed when the system starts.
1) CH Digital output value
CH Shifting amount to
conversion value
(RWw2 to RWw5, RWw12 to RWw15)
2) CH Digital operation value
(RWr2 to RWr5, RWr12 to RWr15)
Input voltage
(V)
0
5
(1) How the shift function operates
The set conversion value shift amount is added to digital output value. Then, the digital operation value after shift-
and-add is stored in CH Digital operation value (RWr2 to RWr5, RWr12 to RWr15).
When the scaling function is used, the conversion value shift amount is added to the value to which the scale-
conversion is performed.
The shift amount is added in every sampling cycle for sampling processing, while it is added in every averaging
process cycle for averaging processing.
The default value of the conversion value shift amount is "0". If a value is set to the conversion value shift
amount, this conversion value shift amount is added regardless of turning on and off Initial data setting request
flag (RY9).
(2) Setting procedure
The setting procedure for the main A/D converter module is as follows:
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".
3.
Set the value to be added to CH Shifting amount to conversion value (RWw2 to RWw5).
CH Shifting amount to conversion value (RWw2 to RWw5)
16000
15990
+
+10
0
-10
CH Digital output value
-10
15990
Item
2) Digital operation value
(after adjustment)
1) Digital output value
(before adjustment)
Analog input voltage (V)
5
Input voltage
CH Digital operation
(V) value (RWr2 to RWr5)
0 0
5 16000
Setting range
-32768 to 32767
CHAPTER 8 FUNCTIONS
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