LSIS XBF-AH04A - Page 569

XGB Analog edition manual
15 - 20
2) PID flag function
Each function of K area flags for XGB series built-in PID control function is summarized as follows.
(a) Common bit area
The area is a flag collecting operation setting and information consisting of bits to each 16 loop.
Each bit of each word device represents the information of each loop. That is, ‘n’ th bit represents
the information about PID loop n.
1) _PID_MAN (PID RUN mode setting)
I
It determines whether to operate the PID control of n loop automatically or manually. For more
information about RUN mode, refer to 6.2.3 PID control parameter setting. If the bit is off, it
operates automatically; if on, it runs manually.
2) _PID_PAUSE (PID Pause setting)
It changes PID control of n loop to pause status. If PID control is paused, the control MV is
fixed as the output at the time of pause. At the moment, PID operation is continued internally
with output fixed. If changing pause status to operation status again, it resumes control, so it
may take a longer time until the PV is going to SV once system status is largely changed during
pause. If the bit is off, it cancels pause; if on, it operates as paused.
3) _PID_REV (PID RUN direction setting)
I
It sets the RUN direction of PID control of ‘n’th loop. For more information about run direction,
refer to 7.2.3 PID control parameter setting. If the bit is off, it operates normally; if on, it
operates reversely.
4) _PID_AW2D (Dual Integral accumulation prevention setting)
I
It sets enable/disable of dual integral accumulation prevention of ‘n’th loop. For more
information about dual integral accumulation prevention, refer to 7.2.3 PID control parameter
setting. If the bit is off, it is enabled; if on, it is disabled.
Flag name
address
IEC type
address
Unit
Setting
_PID_MAN
(PID RUN mode setting)
K1200n
%KX19200 + n
BIT
Available
Flag name
Address
IEC type
address
Unit
Setting
_PID_PAUSE (PID pause setting)
K1201n
%KX19216 + n
BIT
Available
Flag name
Address
IEC type
address
Unit
Setting
_PID_REV
(PID RUN direction setting)
K1202n
%KX19232 + n
BIT
Available
Flag name
Address
IEC type
address
Unit
Setting
_PID_AW2D
(dual integral accumulation
prevention setting)
K1203n
%KX19248 + n
BIT
Available