LS Industrial Systems MASTER-K80S, Руководство пользователя

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Chapter 7 Usage of Various Functions
7-42
(2) PID8AT
Available device Flag
Instruction
M P K L F T C S D
#
D Integ
er
Step no.
Error
(F110)
Zero
(F111)
Carry
(F112)
n O O
PID8
S1 O
5 O
ν
PID8AT(PID auto tuning Calculation)
a) Usage
•
when the condition of execution is on, PID auto tuning operation executes.(only rising edge condition)
and calculates P,I,D constant
•
‘n’ is registration No.at parameter( 0 ~ 7)
•
S1 is execution status and P,I,D constant registration area
b) Example program
•
When the input condition F0093(1second clock) is rising edge(off
⎢
on) PID operation executes at no.2 parameter.
•
PID execution status stores D0000 and the output value of control result stores D0001
and P,I,D constant sequentially store D003(P),D004(I),D005(D)
PID8 n S
1
Flag Set
Error
(F110)
It turns ‘on’ when designation area is over and
the instruction isn’t executed.
Designation area
n
Registration No. at parameter(0~7)
S
1
execution status registration area
[ PID8AT 2 D0000
]
F0093
Done : normal execution signal
D0000
Auto tuning end bit
b0
b6
b7 bF bE bD bC bB bA b9 b8 b1 b2 b5 b4 b3