Delta Electronics Programmable Logic Controller DVP-PLC - Manual (Page 400)

7 Application Instructions API 50-99
D V P - P L C A P P L I C AT I O N M A N U A L 7-116
Part of the example program:
M1
MOV K0 D5
M3
MOV D40 D30
M2
MOV K3000 D32 K3000 D32 >
MOV K0 D32 K0 D32 <
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 D32 K255 D32 >
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 K6 F RO M
K3 D204
RST M0
K400 MOV
MOV
K2
K0 K1
MOV