Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 506)

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Operands in PLC Designer
504 DMS 3.2 EN 02/2011 TD29

10 Operands in PLC Designer
In »PLC Designer« Constants, variables, addresses and possibly function calls can
appear as operands.
10.1 Constants
10.1.1 BOOL Constants
BOOL constants are the logical values TRUE and FALSE.
10.1.2 TIME Constants
TIME constants can be declared in PLC Designer. These are generally used to operate
the timer in the standard library. A TIME constant is always made up of an initial "t" or
"T" (or "time" or "TIME" spelled out) and a number sign "#".
This is followed by the actual time declaration which can include days (identified by
"d"), hours (identified by "h"), minutes (identified by "m"), seconds (identified by "s")
and milliseconds (identified by "ms"). Please note that the time entries must be given
in this order according to length (d before h before m before s before m before ms) but
you are not required to include all time increments.
Examples of correct TIME constants in a ST assignment:
TIME1 := T#14ms;
TIME1 := T#100S12ms; (*The highest component may be allowed to exceed its limit*)
TIME1 := t#12h34m15s;
the following would be incorrect:
TIME1 := t#5m68s; (*limit exceeded in a lower component*)
TIME1 := 15ms; (*T# is missing*)
TIME1 := t#4ms13d; (*Incorrect order of entries*)