Interlocking problems at different temperatures
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For example, in the temperature interlock system of a certain reactor: for the first reactor, it is required that the feed valve be shut off at 100 degrees; for the second reactor, the valve should be shut off at 120 degrees; and for the third reactor, it is necessary to shut off the valve at 150 degrees. How can such control requirements be met? Please help, experts
Add a controller, write in the set value, and output it when the set value is reached
First of all, how do you determine which pot it is? Is it the button on the operation screen? So each button corresponds to a value, and different interlock values are set using functional blocks such as MUX.
The key is to figure out which pot it is Is it manually specified, or does the system automatically cycle from 1 to 3 in sequence? So in the end, you just choose a chain value based on the pot’s number, right?
Just install three thermometers! Label them separately, so there will be no mistakes in operation, and it won’t cost much more either
In fact, the interlock values required for each reaction are different. Based on the responses from several people, it seems quite convenient to switch between different interlock values within the system. Thank you to the experts for their help.