F_Lim_Ti - Siemens SIMATIC S7 F Manual

Fail-Safe Blocks
8.11.3

F_LIM_TI

Function
This block compares the input variables IN, MAX and MIN. It checks whether IN is
within or outside the interval between MIN and MAX. If the lower limit (MIN) of the
interval is greater than or equal to the upper limit (MAX), the output OUT = MAX
and the outputs OUTU and OUTL are set to 1. If IN is > MAX, the upper limit has
been violated, OUT = MAX, OUTU = 1 and OUTL = 0. If IN is < MIN, the lower limit
has been violated, OUT = MIN, OUTU = 0 and OUTL = 1. If IN is between MIN and
MAX, OUT = IN, OUTU = 0 and OUTL = 0 are set.
I/Os
Name
Inputs:
IN
MIN
MAX
Outputs: OUT
OUTU
OUTL
Error Handling
None
Fail-Safe Systems
A5E00085588-03
Data Type Explanation
F_TIME Input variable
F_TIME Lower limit
F_TIME Upper limit
F_TIME Output variable
F_BOOL Upper limit violation
F_BOOL Lower limit violation
Default
T#0 ms
T#0 ms
T# 24d 20h 31m 23s 647ms
T#0 ms
0
0
8-113