Sampling Cycle Switching Function; Control Output Cycle Unit Selection Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.3

Sampling Cycle Switching Function

In the temperature control module, a measured temperature value is stored into 'CH1 Temperature process value (PV)'
(Un\G402) every sampling cycle. In addition, the use of the primary delay digital filter smoothens the temperature process
value (PV), and its drastic change can be absorbed.
Sampling cycle
Select 250ms or 500ms as a sampling cycle.
■How to set the sampling cycle
Configure the setting as follows:
[Navigation window]  [Parameter]  Target module  [Base Setting]  [Sampling cycle selection]
■How to check the sampling cycle
The sampling cycle in execution can be checked in 'Sampling cycle monitor' (Un\G38).
1.4

Control Output Cycle Unit Selection Function

This function is used to switch the unit for the control output cycle between 1s and 0.1s. When 0.1s is set as the control output
cycle, more precise control can be executed.
The control output cycle is the ON/OFF cycle of transistor output for the temperature control function.
Setting method
Configure the setting as follows:
[Navigation window]  [Parameter]  Target module  [Base Setting]  [Control output cycle unit selection setting]
• The setting range and default value of the control output cycle depends on this setting. (Page 226
Control output cycle unit selection setting)
• A setting value discrepancy error (error code: 1920H) occurs right after changing this setting. To recover
from the error status, turn from OFF and ON 'Set value backup instruction' (Y8). Then, register the new
setting in the non-volatile memory.
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1.3 Sampling Cycle Switching Function