User Manual

LOGO! functions
4.4 Special functions list - SF
LOGO!
Manual, 06/2014, A5E33039675
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If you have configured message ticking, the message will tick on and off the display
according to your specifications, either a character at a time, or a line at a time.
If acknowledgment is disabled (Ack = No), the message text is hidden when the status of the
signal at input En changes from 1 to 0.
If acknowledgment is enabled (Ack = Yes) and the status of the signal at input En changes
from 1 to 0, the message text is output until it is acknowledged with
OK
. When En = 1, you
cannot acknowledge the message text.
When multiple message text functions are triggered with En=1, LOGO! displays the message
text with the highest priority (0 = lowest, 127 = highest). This also means that LOGO!
displays a newly activated message text only if its priority is higher than that of previously
activated message texts.
After a message text is disabled or acknowledged, the function automatically shows the
previously active message text that takes the highest priority.
You can press the
and keys to step through multiple active message texts.
Example
This is how two message texts could be shown:
Message ticking
You can configure message text lines to tick or not tick. Two types of message ticking exist:
● Character by character
● Line by line