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Delta DVP PLC Temperature PID- GPWM and ISP Soft Part 2

00:00 intro 0:15 start 6:8 program simulation 11:23 PID mode set PID = proportional integral derivative GPWM = General Pulse Width Modulation PWM = Pulse Width Modulation PV (process value/process variable), SV/SP (set value) and MV (manipulated output value) can be transferred to other measuring instruments. A cost corresponding to one temperature sensor can be reduced just by connecting a PV transfer signal to a recorder. Temperature PID: Step1, Read RAW Data of Temperature form Delta Analog input Step2, Display Temperature Unit= 0.1 = 10 Digital RAW Data/ 10 Digital RAW Value MAX: 2000, MIN 0 Temperature: 200, MIN 0 Analog input Chanel1: Sensor Connected, and CR#6 Step3, Configure PID Instruction Step4, Configure GPWM Heater Output: Y0 Blower Output: Y1 D0 = Digital RAW Value, Max = 2000 D2 = Actual Temperature Value, MAX =200 C PID = 16 bit DPID = 32 bit SV = D410 Setup PID MOD = D412 PV = D0 MV = D4, Pulse Width Reference D4 = Pulse Width D6 = Pulse Output Cycle Y0 = Heater output S3 = D500 S3.0 = D500 S3+1 = D501 S3+2 = D502 S3+3 = D503 S3+4 = D504 = PID Cont.MOD Delta DVP PLC PID Mod Setting 0: Automatic control 1: Forward control (E = SV - PV). 2: Reverse control (E = PV - SV). 3: Auto-tuning of parameter exclusively for the temperature control. The device will automatically become K4 when the auto-tuning is completed and KP, KI and KD is set with appropriate value (not available in the 32-bit instruction). 4: Exclusively for the adjusted temperature control (not available in the 32-bit instruction). 5: Automatic mode with MV upper/lower bound control. When MV reaches upper/lower bound, the accumulation of integral value stops. 7: Manual control 1: User set an MV. The accumulated integral value increases according to the error. It is suggested that the control mode should be used in a control environment which change more slowly.

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