- #1
qpzm77gg
- 19
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Problems of control and automation, help please!
2. What are the 4 classes of programming languages of PLC?
3. How to illustrate the meaning of control system in control and automation system?
4. How to illustrate the major role of CPU in a PLC and what is the major role of CPU?
5. How to illustrate the major role of volatile memory and non-volatile in a PLC and what is the major role of volatile memory and non-volatile?
6. An on-off controller is used to control the temperature of a process. The cycling amplitude is reduced by making the two heating rates very close to average required for normal operation. What are the disadvantages on this set up?
Q2, Q4-Q5<= I can't find the relative answers from the Internet.
Q6) Is it there will cause danger on disadvantage?
Because these are not calculation, I can't show the step and I don't know how to show it.
Thanks.
2. What are the 4 classes of programming languages of PLC?
3. How to illustrate the meaning of control system in control and automation system?
4. How to illustrate the major role of CPU in a PLC and what is the major role of CPU?
5. How to illustrate the major role of volatile memory and non-volatile in a PLC and what is the major role of volatile memory and non-volatile?
6. An on-off controller is used to control the temperature of a process. The cycling amplitude is reduced by making the two heating rates very close to average required for normal operation. What are the disadvantages on this set up?
Q2, Q4-Q5<= I can't find the relative answers from the Internet.
Q6) Is it there will cause danger on disadvantage?
Because these are not calculation, I can't show the step and I don't know how to show it.
Thanks.