Cascaded Loop with Remote Control

System

The combined PROCON Level, Flow & Temperature Process Control System is self-contained and has all of the features of the individual Level & Flow and Temperature systems plus remote set-point control. Remote set-point control can be affected with the PROCON Level, Flow & Temperature Process Control System by using two process controllers. The 4-20mA analogue remote set-point input allows various forms of cascade control to be implemented between linked or interactive control loops. The process set-point can be local and remote or dual, selected from the front panel, or in response to a logic input. When dual set-point is selected the function can be ratio or bias action. A Programmable Logic Controller (PLC) 38-350 is also available separately. It can be used with the Process Interface 38-200 to provide an alternative control method with on/off elements to the standard Process Controller 38-300 (included).

 Topics

• Flow & level familiarisation & calibration
• Temperature familiarisation & calibration
• Interface familiarisation & calibration
• Controller familiarisation & calibration
• Float level transmitter
• Pulse flow transmitter
• On-Off control
• Study of P, PI and PID control of level  & flow
• Tuning PID controllers
• Advanced process control
• Study of P, PI and PID control of temperature & flow
• Manual flow control
• Temperature process control
• Complex control loops
• Dual loop (process) control - using Level, Flow & Temperature Control Trainers
• Remote set-point control
• Set-point ratio control (dual loop)
• Cascade control (temperature & flow)
• Feedforward Control