When a project is loaded, HMI Runtime proceeds as follows:
1. Page images are preloaded until 76 MB of memory space is still available (imageDBLowMem)
2. Pages where precache is set to true are preloaded untill 64 MB of memory space is still available
(pageCacheLowMemMax). The images of these pages are loaded in the RAM (into the Image DB).
When the project is ready:
1. Any new page visited is saved in the cache (RAM) with all related images until 40 MB of memory space is still
available(pageCacheLowMemMin)
2. When a page change happens and space in RAM is critical (<40MB), the HMI Runtime starts emptying the cache
(RAM) removing pages and related images until 64 MB of memory space is made available. HMI Runtime removes
data stored in the cache in the following order:
1. last visited pages and bigger and unused images (>320x240),
2. if more memory is needed also the pages in precache and all images loaded in Image DB can be removed.
HMWIN Studio |User Manual| v206 (2017-06-30) | EN| © 2014-2017 Panasonic Electric Works Europe AG
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