800F M_ANA analog block rs the hysteresis value is a percentage of the hysteresis value
It appears this number is a percentage of the alarm setpoint value and not the range of the analog. For example a 0-100% analog with a low alarm at 10% and a hysteresis of 5% would mean the hysteresis is actually 5% of 10 (.5) and not 5% of 100 (5). I find this to be very odd, usually hysteresis oe deadband is a percentage of the analog range. Can this be changed or is this fixed in 800F?
Asked 3 years ago
Answers
1
In Freelance M_ANA function block the parameter 'Hyst' - Hysteresis (%) is relative to the set limit value. (Fixed by system).
1
Hello,
As govindaraj said it is fixed and % value on set limit value. check image below should make it more clear , may be you can try setting like this in M_ANA block,
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