Delta AS Series Programming Manual page 759

AS Ser ies Pro gra mm in g M anu al
Operand
CYCLE
MV
PV
I_MV
_6
ERROR
Note:
1. If the PID parameter exceeds the upper limit, only the maximum value can be written in the module, if the PID
parameter is below the lower limit, only the minimum value can be written in the module.
2. When PID_RUN switches from True to False, it clears the MV output value to 0. If you need to keep the last MV
output value, you can switch the operand EN to False to close this instruction and the MV output value can be kept.
6-480
Data type
DWORD/DINT Sampling time (T
MV output value
REAL
DWORD/DINT/
Present value
REAL
REAL Accumulated integral value
DWORD/DINT Error codes
Function Setting range
1~1000
)
S
(unit: 100 ms)
0.0~100.0
(unit: 1%)
Format is defined in HWCONFIG.
Accumulated integral value is for
reference. When the MV is out of the
range of 0-100%, the accumulated
integral value in I_MV stops changing.
16#0000：instruction is being
executed and is working normally
16#1400：the module you are using
does not support this instruction.
16#1401：group number or module
number setting error
16#1402：the module you are using
does not respond and communication
time out
16#1403：channel setting error
16#1404: PID function is ongoing
during the communication, no
repeatedly set ups.
Description
feed forward.
When the
instruction is
scanned, use the
PID algorithm
according to the
sampling time,
and refresh MV.
MV output value