Detailed description
Original instructions
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Parametering
The parameter assignments of the function block are satisfied by the determination of the factor gain, and the values the derivative time constant lead and delayed time constant lag.
For very small sample times and the unit jump at input X (jump at input X from 0 to 1.0) output Y will jump to the value (theoretical value - actual slightly smaller, due to the not infinitely small sample times), using the time constant lag to approximate the value .
Operating modes
There are three operating mode selectable through the man and halt parameter inputs:
Operating mode
man
halt
Meaning
Automatic
0
0
The function block operates as described in "Parametering".
Manual mode
1
0 or 1
The manual value YMAN will be transmitted fixed to the output Y.
Halt
0
1
The output Y will be held at the last calculated value. The output will no longer be changed, but can be overwritten by the user.