How to do temperature ramp up?
Hi, I am quite new to ABB. Currently I am doing my first project with freelance 2013.
While it is easy to use. There might be tools that I still need some time to discover.
How to do tempreature ramp up?
I need to do a define temperature ramping.
For example I need to rise 60C in the 1 hour (or other defined time)
currently I am using CST_DT minus system DT to determine the number per minutes steps needed to do ramping
60C in 1 hour = 1 degree per minute or
60C in 2 hour = 0.5 degree per minute
Then I use sample and hold FB to trigger sp + 1 (temperature per minute) = new sp
then I repeat the above step with new value enter via DST-real function block.
While this seem working for the time being. The ramp up is not very smooth.
There must be a better way of entering final temperature and duration and let the system ramping up the temperature up smoothly
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