Delta-electronics Programmable Logic Controller DVP-PLC Manual do Utilizador Página 400

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7 Application Instructions API 50-99
DVP-PLC APPLICATION MANUAL
7-116
Part of the example program:
M1
MOV K0 D5
M3
MOV D40 D30
M2
MOV K3000 D32K3000D32>
MOV K0 D32K0D32<
ADD D30 D31 D32
MOV D32 D1116
M1
PID D1 D1110 D10 D5
M1002
MOV K1000 D40
M0
MOV D0 D1
DIV D32 K11 D32
MOV K255 D32K255D32>
Application 3 Using auto-tuning on the parameter for the temperature control.
Purpose: Using auto-tuning to calculate the most suitable parameters for PID temperature control.
Explanation: You may not be familiar with the temperature environment for the first time, so you can use auto-tuning
(S
3
+ 4 = K3) for an initial adjustment. After this, PID instruction will become exclusively for temperature
control (S
3
+ 4 = K4). In this example, the control environment is an oven. See the example program
below.
M1002
M1013
M0
MOV K4000 D20
D200
K800 D10
TO K0
K2 K1
D11
K6FROM
K3 D204
RST
M0
K400
MOV
MOV
K2
K0 K1
MOV
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