Delta AS Series Manual page 229

CR#
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
626 656 686 716 746 776 806 836
Note: When using PID parameters to set up control registers: PID control registers of AS04TC-A and RTD-A
are retainable; however PID control registers of AS06RTD-A and AS08TC-A are not retainable.
PID formula:
1. When the PID_MODE is set to 0, the mode is set to auto:
Independent Formula & Derivative of E（PID_EQ=False & PID_DE=False）

MV = K E + Ki
P
Independent Formula & Derivative of PV（PID_EQ=False & PID_DE=True）

MV = K E + Ki
P
MV = K E + Ki
P
Ch a pt er 7 Tem per at u r e M eas ur em ent M o d u le A S 0 4/ 0 8T C
Operand
CYCLE
t
dE
(
E = SV – PV or E = PV – SV)
∫
E dt + K * + BIAS
d
dt
0
t
dPV
(
∫
E dt − K * + BIAS
d
dt
0
Or
t
dPV
∫
E dt + K * + BIAS
d
dt
0
Function Description
0%–100%, the
accumulated
integral value in
I_MV is
unchanged.
When this
instruction is read,
the PID algorithm
is implemented
according to the
sampling time, and
the MV is
Sampling
refreshed.
time (T )
S
If T is less than 1,
S
it is read as 1. If T
is larger than
1,000, it is read as
1,000.
Unit: 100 ms
E = SV – PV)
(
E =PV – SV)
Defaults
1
S
7_
7 - 3 3