Shift Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.8

Shift Function

This function adds the set input value shift amount to the digital input value.
The analog output value reflects the change in the input value shift amount on a realtime basis. Therefore, fine adjustment
can be easily performed when the system starts.
Operation
When the D/A conversion is performed on the digital value, the value obtained by adding 'CH1 Input value shift amount'
(Un\G480) to 'CH1 Digital value' (Un\G460) is used for the D/A conversion.
When the digital value after the addition exceeds the range of -32768 to 32767 as the result of the shift processing, the value
is fixed with the lower limit value (-32768) or the upper limit value (32767).
When a value is written to 'CH1 Input value shift amount' (Un\G480), the set value is added to the digital input value
regardless of the ON/OFF state of 'Operating condition setting request' (Y9).
Setting procedure
Set the shift amount to "Input value shift amount".
Navigation window  [Parameter]  [Module Information]  Module name  [Module parameter]  "Application
setting"  "Shift function"
Item
Input value shift amount
Setting example
Ex.
When the output range is 0 to 5V and the input value shift amount is +50
Analog output voltage (V)
5
Before
adjustment
0
adjustment
-50 0
Digital value
Before adjustment
-50
31950
1 FUNCTIONS
26
1.8 Shift Function
Input value
shift
After
digital value
32000
31950
After adjustment
0
32000
Setting range
-32768 to 32767
Analog output voltage (V)
0
5