User Manual

LOGO! functions
4.4 Special functions list - SF
LOGO!
138 Manual, 06/2014, A5E33039675
Valid ranges of the timebase
If an already-programmed function provides the value of T, the valid ranges of the timebase
are as follows:
Timebase
max. value
Meaning
Accuracy
ms
99990
Number of ms
+ 10 ms
s
5999
Number of s
+ 1 s
m
5999
Number of min
+ 1 min
The LOGO! display appears as follows in programming mode, if you have, for example, set
the actual value of B6 in seconds to parameter T of B12:
If the referenced block (B6, in the example) returns a value that lies out of the valid range,
LOGO! rounds the value up or down to the next valid value.
Parameter preset = Actual value of an already-programmed function
To include the actual value of an already-programmed function for parameter T, follow these
steps:
1. Press
to move the cursor to the equal sign of parameter T.
2. Press
to change the equal sign into an arrow. LOGO! displays the last referenced block
if it exists.