MaterialPackageDetailGreyZone Property

This specifies the grey zone between 2 material packages. A grey zone is a zone where the placement system can not determine where the switch between 2 material packages has been taken place. Therefore the system tracks both material packages. The quality of the GreyZone is driven by the process the customer is operating and if the feeder are using optional splice sensor detectors or not. Background is, that some sensors can detect the splice plate and the splice plate has a length which covers a number of components which hide the real end of tape. Therefore the verifcation system will report a greyzone between the "leading package" and the "trailing" in the chain. The greyzone will be maintained typically by the machine, based on the feeder configuration. When the feeder has a sploice sensor the grey zone will be calculated when the sensor detects the splice, and will be adjusted when components are consumed. When the greyzone reached zero, the "leading" package will be consumed and the chain will be modified by removing the "leading" package from the chain, resulting in the next package in the chain becoming the new "leading" package.