Mitsubishi Electric MELSEC iQ-R Series User Manual page 254

■Buffer memory areas to store set values in the non-volatile memory
The following table lists the buffer memory areas from which set values are read.
Buffer memory area name
CH1 Proportional band (P) setting
CH1 Heating proportional band (Ph) setting
CH1 Cooling proportional band (Pc) setting
CH1 Integral time (I) setting
CH1 Derivative time (D) setting
CH1 Loop disconnection detection judgment time
■Setting range
• 0: Not requested
• 1: Requested
■Precautions
When this command has been set to Requested (1), do not execute the following operations. An incorrect value may be
stored in the non-volatile memory.
• Changing set values in the buffer memory read from the non-volatile memory by using this command
• Memory backup ( Page 123 Buffer Memory Data Backup Function)
• Default setting registration ( Page 166 Default setting registration command)
• Auto tuning ( Page 38 Auto Tuning Function)
• When the initial setting of the engineering tool has already been configured in the Q compatible mode,
backing up PID constants to the non-volatile memory after the auto tuning is recommended. Turning on this
command at the next start-up can omits the auto tuning.
• This command is enabled in both the setting mode and operation mode. However, this command is disabled
while 'CH1 Auto tuning command' (Y4) is ON.
■Default value
The default value is Not requested (0).
CH1 Feed forward value memory read command
A feed forward value is read from the non-volatile memory and stored in the buffer memory by using this command. Setting
this buffer memory area to Requested (1) stores the value backed up in the non-volatile memory to the buffer memory.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
CH Feed forward value memory read command
CH Feed forward value memory read command (in the Q compatible mode)
■Buffer memory areas to store set values in the non-volatile memory
The following table lists the buffer memory areas from which set values are read.
Buffer memory area name
CH1 Feed forward value
■Setting range
• 0: Not requested
• 1: Requested
APPX
252
Appendix 3 Buffer Memory Areas
Buffer memory address
Un\G431
Un\G431
Un\G439
Un\G432
Un\G433
Un\G537
CH1
441
1200
Buffer memory address
Un\G560
Reference
Page 245 CH1 Proportional band (P) setting
Page 247 CH1 Heating proportional band (Ph)
setting
Page 251 CH1 Cooling proportional band (Pc)
setting
Page 247 CH1 Integral time (I) setting
Page 248 CH1 Derivative time (D) setting
Page 289 CH1 Loop disconnection detection
judgment time
CH2 CH3
641 841
1216 1232
Reference
Page 308 CH1 Feed forward value
CH4
1041
1248