Xinje XDH Series User Manual

301
3)Suitable soft components
Operands
Word soft elements
Bit soft elements
System
Consta
nt
Module
System
D
F
D
T
D
C
D
D
X
D
Y
D
M
D
S
K/H
I
D
Q
D
X
Y
M
S
T
C
Dn.
m
S1
●
●
●
S2
●
●
S3
●
●
D
●
●
●
●
●
●
●
*Note: D includes D, HD; TD includes TD, HTD; CD includes CD, HCD, HSCD, HSD;
DM includes DM, DHM; DS includes DS, DHS. M includes M, HM, SM; S includes S and
HS; T includes T and HT; C includes C and HC.
PID D0 D10 HD0 D100
X0
D·S1·
S2· S3·
PID D0 D10 HD0 Y0
X0
D·S1·
S2· S3·
 S3~ S3+ 69 will be occupied by this instruction, so please don’t use them as the common
data registers.
 This instruction executes when each sampling time interval comes.
 For the operation result, data registers are used to store PID output values; the output points
are used to output the occupy duty ratio in the form of ON/OFF.
 PID control rules are shown as below:
P: proportion, I: integral, D: differential
e(t) = r (t ) –c ( t ) (1-1)
u(t) = Kp [ e(t) + 1/Ti ∫ e(t)dt + TD de(t)/dt] (1-2)
Analog PID control system
Functions and Action
－
c(t)
u(t)
r(t) +
e(t)
+
+
+
P
Controlled
object
I
D
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Xinje XDH Series Specifications

General

Brand	Xinje
Model	XDH Series
Category	Network Hardware
Language	English