Specifications

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3BUS 208 000 R1301 103Platform Tuning
Standardize Off-Sheet Delay Setup
At times there are large temperature differences between the off-sheet position and
where the head package is over the process. These temperature differences can
cause measurement problems if the head has been off-sheet long enough to cool.
Under this situation, it is not appropriate to initiate a standardize before going back
on-sheet, as this will introduce errors to the measurement due to standardizing with
a cooled sensor package. To overcome this potential error, release SP280.2
introduces a feature which will delay the standardize if the head has been off-sheet
for more than a specified amount of time. In this case, the head will forego any
scheduled standardize until such time as a prescribed time on-sheet has been
accomplished. During this time delay, the measurements will be valid provided
there was an initial good standardize.
There are four instance variables located in the scanner01 object associated with
this feature. Two are setup variables, offSheetTime and onSheetTime, while the
other two, stdzRequested and stdzDelayRequired, are status flags used to identify
the current status of any standardize delay. The default condition for offSheetTime
and onSheetTime is a 0. This will turn off the feature. Any non-zero positive value
(time in seconds) in these two variables will activate the feature. The values used
will necessarily be site and installation specific, depending on the temperature
environment surrounding each frame. Experiment to determine the correct off- and
on-sheet delay times.
This feature is primarily beneficial for the Caliper and OptiPak sensors and on Off-
Machine Coaters where standardize should be delayed after machine startup. Other
sensors may also benefit where on and off-sheet temperature differences are
considered large. Unless large temperature differences are present, turn off the
feature if a Caliper or OptiPak sensor is not present in the configuration. However,
if it is on, it will control the standardize of all sensors in the system.
1. Activate the inspect utility.
2. Enter the desired off-sheet time in seconds:
scanner01 -> offSheetTime = xxxx (0 = off)
3. Enter the desired on-sheet time in seconds:
scanner01 -> onSheetTime = yyyy
4. Exit the inspect utility by typing: :q
5. Save the changes to the frame community using the gstore utility.