Mitsubishi Electric MELSEC iQ-R Series User Manual page 234

CH1 Manipulated value (MV)
Results of the PID operation executed on the basis of the temperature process value (PV) are stored in these areas. The
following table lists the range of values to be stored.
Stored contents
Manipulated value (MV)
Manipulated value for heating (MVh)
Manipulated value for cooling (MVc)
However, values are output within the range of 0 to 100%. For values smaller than 0% and larger than 100%, refer to the
following:
• Values smaller than 0%: 0%
• Values larger than 100%: 100%
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
CH Manipulated value (MV)
CH Manipulated value (MV) (in the Q compatible mode)
■Manipulated value (MV) and control output cycle
• A manipulated value (MV) is the ON time of 'CH1 Control output cycle setting' (Un\G504) displayed in percentage. (
Page 261 CH1 Control output cycle setting)
• A manipulated value for heating (MVh) is the ON time of 'CH1 Heating control output cycle setting' (Un\G504) displayed in
percentage. ( Page 262 CH1 Heating control output cycle setting)
• A manipulated value for cooling (MVc) is the ON time of 'CH1 Cooling control output cycle setting' (Un\G522) displayed in
percentage. ( Page 278 CH1 Cooling control output cycle setting)
Ex.
When 600 (60.0%) has been stored in 'CH1 Manipulated value (MV)' (Un\G403) and the value in the following buffer memory
area has been set as follows:
• 'CH1 Control output cycle setting' (Un\G504): 30s
ON time of transistor output = Control output cycle setting (s)  Manipulated value (MV) (%) = 30  0.6 = 18 (s)
ON time of the transistor output is 18s.
Transistor output becomes the pulse that is ON for 18s and OFF for 12s.
OFF
Transistor output
CH1 Manipulated value for heating (MVh)
For details on this area, refer to the following:
Page 232 CH1 Manipulated value (MV)
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
CH Manipulated value for heating (MVh)
CH Manipulated value for heating (MVh) (in the Q compatible mode)
APPX
232
Appendix 3 Buffer Memory Areas
Range of values to be stored during
control
-50 to 1050 (-5% to 105.0%)
0 to 1050 (0.0% to 105.0%)
18s (60%) 12s (40%)
ON
30s
Value to be stored while the control has
stopped
-50 (-5.0%)
-50 (-5.0%)
CH1 CH2
403 603
13 14
CH1 CH2
403 603
13 14
CH3 CH4
803 1003
15 16
CH3 CH4
803 1003
15 16