AV-300i Version 2 User’s Guide
—————— Function Description ——————
Ch.1
171
1.17 CUSTOMER FUNCTIONS (CUSTOM FUNCTIONS)
1.17.1 Signal Comparator (Compare)
The Block supplies two signal Comparators, Compare 1 and Compare 2, with the same features.
Each Comparator is in a position to compare two or three input signals (INP0, INP1, INP2).
They both have 3
sources, Cmp x inp 0 src - Cmp x inp 1 src - Cmp x inp 2 src, through which it is possible
to select, on the input, the origin of the signals to be compared (“ x ” stays for 1 or 2).
Each source is standard connected to an internal variable, Cmp x inp 0 - Cmp x inp 1 - Cmp x inp 2, which can
be set with a count value in the
configurations, where, through Cmp x function it is possible to select the com-
parison to be performed.
Some comparisons allow to set via Cmp x window a window, in count, stating an acceptable range among the signals.
Example:
_INP0 and INP1 have to be compared as “INP0 = INP1”
INP0 = +1000count
INP1 = +1000count
Window = 100count
_in this case the equality is true for a maximum overall variation of INP1 between 1100 and 900 counts.
Possible variations:
None none
I0 == I1
INP0-window INP1 INP0+window
I0 != I1 INP1 lower INP0-window, or,
INP1 higher INP0+window
I0 < I1
INP0 lower INP1
I0 > I1
INP0 higher INP1
I0 < I1 > I2
INP0<INP1<INP2 (INP1 included between..)
|I0| == |I1|
|INP0| -window £ |INP1| £ |INP0| +window
|I0| != |I1| |INP1| lower |INP0| -window, or
|INP1| higher |INP0| +window
|I0| < |I1|
|INP0| lower |INP1|
|I0| > |I1|
|INP0| higher |INP1|
|I0| < |I1| < |I2|
|INP0| < |INP1| < |INP2| (|INP1|
TAV3i013
|INP|x : signal module.
In the
configurations it is also possible to set:
with Cmp x delay a delay in seconds on the comparison transition;
with Cmp x inversion an inversion of the signal state.
The
monitor function displays via Compare x output the state of the chosen function:
_if Compare function is TRUE the output is 1
_if Compare function is FALSE the output is 0
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