Kistler maXYmos BL - Evaluation Object [EO] LINE-Y; Evaluation Criterion; Positioning LINE-Y over Measurement Curve; Obtaining Process Value of LINE-Y

maXYmos BL, Type 5867B…
Page 70 5867B_002-626e-04.16
4.4.6.3 Evaluation Object [EO] LINE-Y
4.4.6.3.1 Evaluation Criterion
The measurement curve must cross LINE-Y once in the specified direction, i.e. coming from
the RIGHT or from the LEFT. LINE-Y monitors whether a Y value remains within its
tolerance band limits YMIN and YMAX. The process value is also a Y value.
Example cases
4.4.6.3.2 Positioning LINE-Y over Measurement Curve
4.4.6.3.3 Obtaining Process Value of LINE-Y
The process value ENTRY is the X value at the point of intersection of the curve with the
LINE-Y element and with its vertical extension in the catch zone. This value can be displayed
on the PROCESS page "Value Table" (see p. 14 ff., p. 71 and p. 79 ff.) or transferred via
fieldbus.
X
e
Y
X
Y
O
K
NO
K
X
Y
X
Y
LINE-Y
p
rovides the X value at the
p
oint of
intersection of the curve with the line (red
circle on left diagram) or with its extension
within the catch zone (dashed extension in
right diagram).
X
Y
OK
X
Y
NOK
Left screenshot:
Positioning a LINE-Y with
stylus or a numerical entry
in the EO Editor
Right screenshot: LINE-Y
being used for evaluation
in the PROCESS View.