8. How easyE4 works internally
8.6 Controlling the backlight with operands
Example: Backlight flashing
Say you want the device display to flash white at an interval of two seconds. You also
want flashing in red or green to be possible if selected.
The following program must be downloaded onto the device.
Fig. 303: Programming view/sample program with FBD
To test it, you will first need to establish online communications with the device.
Set marker M01 to cause the device display to flash.
Then set marker M04 as well so that the device display will flash red. Clear M04.
Then set marker M05 in addition to M01 so that the device display will flash green.
easyE402/24 MN050009ENEaton.com
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