Detailed description
Original instructions
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Parametering
Setting parameters for the function block is achieved through specification of the factor gain as well as setting parameters for the delayed time constant lag.
The unit jump at input X (jump at input X from 0 to 1.0) follows output Y with a delay. Along an e-function
it will approximate the value .
Operating mode
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.
Example
The diagram shows an example of the jump response of the function block. Input X jumps to a new value and output Y follows an e-function for input X.
Jump response for function block LAG if gain = 1