Danfoss MCO 305 Design Manual page 146

MCO 305 Design Guide
Bit Mask
This is used to specify how a Bit Mask value is to be extracted from the original value (which is always a 32-
bit value). The Example bytes can be used by the user to help verify the correct bit mask specification. The
three small buttons can be used to generate different test values for the example.
12 The value 0x78563412 will be used.
FF The value 0xFFFFFFFF will be used.
?? A random value will be generated.
The Bit Mask fields contain hexadecimal values that will be used as a mask to extract the curve data from
the selected bytes. The small button under each field can be used to toggle the mask between 0xFF and
0x00. Under these buttons, the same example bytes are displayed again, this time incorporating the bit
mask. And finally, the user can specify whether the value is to be treated as a signed or unsigned value.
Group Curve
A Group curve is not an actual curve and it contains no recorded information. Instead, it simply contains a
collection of other curves and allows that entire set of curves to be handled together as a unit. For example,
all the curves in a group will be configured by the Free Run Oscilloscope into a single PDO message for
transferring values from the controller to the Oscilloscope. Or all the curves in a group will be configured by
the Single Shot Oscilloscope into a single TESTSETP array for data collection.
NB!:
Note that one consequence of this is that all curves in a group must be associated with the same
controller.
The preferred method of using the Oscilloscope is to add a Group curve and then add other curves
to that group. A single Group curve is adequate for most uses of the Oscilloscope. However, in some cases
(e.g. testing with multiple controllers), adding multiple Group curves can be useful. This can be done if
"User Mode" is set to "Expert" (see Settings → Options menu command).
Group curves will be displayed in the "Curve Selection List" with a grey background. Groups will always be
added to the list after all previously existing groups and before the "Other Curves" heading if it exists.
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