Configuration
4 Configuration
4.1 Block Diagram
The TwinCAT Temperature Controller consists of a number of function blocks. The following function blocks
are involved:
• Self-tuning algorithm (FB_Selftuner)
• Control algorithm (FB_ControlAlgorithm)
• Set value generator (FB_SetpointConditioner)
• Control value generator (FB_ControlValueConditioner)
• Alarming (FB_Alarming)
These function blocks in turn call a number of other subsidiary function blocks.
The diagram illustrates the individual function blocks.
4.2 Generating the Set Value
One bit switches between the set values. In addition to the actual set value, there is also a standby set value.
The standby set value can be used to reduce the temperature during operating pauses to a lower value in
order to save power. If necessary the steps in the set value can be ramped. The parameter set for the set
values includes a rate of rise and a rate of fall.
TC3 Temperature Controller 15Version: 1.1
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