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CHAPTER 3 SPECIFICATIONS
3
3.4 Buffer Memory Assignment
3.4.2 Details of the buffer memory
(26)CH AUTO/MAN mode shift (Un\G50, Un\G82, Un\G114, Un\G146)
Select whether to calculate the manipulated value (MV) by PID operation or to set it manually by the user.
(a) Setting range
(b) When AUTO mode is shifted to MAN mode
The following operation is performed.
• The manipulated value (MV) calculated by PID operation is transferred to CH MAN output setting
(Un\G51, Un\G83, Un\G115, Un\G147). (For preventing a rapid change of the manipulated value (MV))
• When the shift to the MAN mode is completed, bits of the corresponding channel of MAN mode shift
completion flag (Un\G30) are set to MAN mode shift completed (1).
Set the manipulated value (MV) in MAN mode after confirming completion of the mode shift.
(c) When performing auto tuning
Set to AUTO (0). If MAN (1) is set, the auto tuning is not performed.
(d) Default value
The default values are set to AUTO (0) in all channels.
Set value
Setting
contents
Description
0AUTO
Activates the AUTO mode. The manipulated value (MV) calculated by PID operation is used to
calculate the ON time of the control cycle.
1MAN
Activates the MAN mode. The manipulated value (MV) written in CH MAN output setting
(Un\G51, Un\G83, Un\G115, Un\G147) is used to calculate the ON time of the control output
cycle.
Common
AUTO/MAN mode
Man mode shift completion flag
(Un\G30)
Executed by the Q64TCN
AUTO mode MAN mode AUTO mode
CH AUTO/MAN mode switching
(Un\G50, Un\G82, Un\G114, Un\G146)
MAN mode shift
uncompleted (0)
MAN mode shift
uncompleted (0)
AUTO (0) AUTO (0)MAN (1)
MAN mode shift
completed (1)