Chapter 3 Programming
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Webvisualization works only when PLC is in RUN status.
Local I/O (external I/O) is not updated in web visualization and standard visualization. If it is necessary to read
or write local I/O directly, use additional variables in web visualization and copy them to/from local I/O in the
IEC program.
Webvisualization requires processor load. Normally up to 80% of cycle time of the task is available for user
program execution without Webvisualization however, 15 to 20% of cycle time is for program execution with
Webvisualization. Be sure to set longer cycle time for the task of user program.
Since Webvisualization requires a lot of memory, “Source download” fails because the flash memory size in
MICRO-EHV+ is not enough. In order to download source file, disable “Download information files” in
Additional files in [Project Settings]-[Source Download].
Without “Download information files”, online change is not possible by uploaded source file. (It is
possible to download, but CPU must be stopped.) If online change is necessary, be sure to keep project
archive file in your PC with Download information files enabled.
Additional files for Source download
Setting for Project Archive
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