Multi-Zone Control with "PID_Temp” for SIMATIC S7-1200/S7-1500
For a multi-zone control several zones of a plant are simultaneously controlled at different temperatures (example: extruder).
The actual value of a zone influences the value of the neighboring zone by heat coupling.
With the technology object "PID_Temp”, SIMATIC S7-1200 and S7-1500 offers a continuous PID controller with configuration and commissioning interface.
The controller block is especially designed for temperature control and is suitable for heating or heating/cooling applications.
Two outputs are available for this purpose, one for heating and one for cooling.
For the multi-zone controller each zone is controlled with an instance of the "PID_Temp".
This application example gives you a detailed description of how to use the integrated tuning methods pretuning and fine tuning, in order to get to a stable control of the complex multi-zone controller topic.
The application example on hand offers the following advantages:
- simultaneous pretuning of all zone controllers
- synchronous fine tuning of all zone controllers
- simulation block for multi-zone control
- block for measuring the disturbance variable compensation time
- Documentation of the blocks, as well as configuration for S7-1200/S7-1500 in STEP 7 (TIA Portal)
Function Manual: SIMATIC S7-1200, S7-1500 PID Control
Application example: “Closed-Loop Control of Simulated Controlled Systems in the S7-1500 with PID_Compact V2.2”
SIMATIC S7 S7-1200 Programmable controller manual
SIMATIC S7-1500, ET 200MP Automation system
Update TIA Portal V15.1