BS5-PLC 用于PLC的炉子测试模块

6.2.3.- 用PLC进行仪表控制
OVENS TEST MODULE FOR PLC - BS5-PLC

創新系統

The "BS5-PLC" has been designed to study the temperature measurement techniques inside a sealed place, such as an oven and how to perform a temperature control through a PLC.

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一般說明

The "BS5-PLC" has been designed to study the temperature measurement techniques inside a sealed place, such as an oven and how to perform a temperature control through a PLC. This unit is equipped with an oven that contains a heating element and a changeable speed fan than enables to modify the oven time constant. The oven has four equal thermocouples placed on different heights, a platinum heating element thermometer, a thermistor and a semiconducting mechanism sensitive to temperature. One of the temperature sensors output signals is conditioned to be connected to the PLC. The temperature inside the oven can be controlled with a PLC through the signal obtained from a sensor.

*Available PLC models of different manufacturers: PANASONIC, SIEMENS, OMRON, MITSUBISHI, ALLEN BRADLEY, etc.

練習和指導練習

手册中包含的指导实践练习

  1. Heating element. Raise the oven internal temperature, over the environmental temperature, using a heating element to do tests and practices related with temperature measurement.
  2. To use a fan as refrigerating element of the oven.
  3. To use thermocouples as temperature sensors elements inside the oven. Temperature measurement using a thermocouple.
  4. To measure temperature inside the oven using a platinum resistance thermometer.
  5. To measure temperature inside the oven using a thermistor temperature sensor.
  6. Temperature measurement using a thermistor, based on its negative temperature coefficient.
  7. To obtain the temperature value inside the oven using a semiconductor sensor (diode).
  8. Using the analog inputs and outputs of the PLC to read and write analog signals.
  9. Read the temperature sensor signal with the PLC.
  10. Manual control of the actuator through the PLC.
  11. PID control of the temperature value through the PLC.
  12. Observe the effects of the temperature control to changes in the PID parameters.

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