Firmware ≤ 05.00 - DMS 4.2 EN - 02/2010 L 907
8400 HighLine | Parameter setting & configuration
Function library
Function blocks | L_ComparePhi_1
14.1.27.2 Function 2: dnIn1 > dnIn2
This function serves, for instance, to implement the comparison "actual speed is higher
than a limit value" (n
act
> n
x
) for one direction of rotation.
[14-14] Function 2: Switching performance
Functional sequence
1. If the value at dnIn1_p exceeds the value at dnIn2_p, bOut changes from FALSE to TRUE.
2. Only if the signal at dnIn1_p falls below the value of dnIn2_p - hysteresis again, bOut
changes back from TRUE to FALSE.
[14-15] Function 2: Example
n C001671: Hysteresis
TRUE
FALSE
bOut
dnIn2_p
dnIn1_p
n C001671: Hysteresis
dnIn1_p
dnIn2_p
TRUE
FALSE
bOut
t
t
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