Siemens Simatic S5 Operating Instructions Manual page 31

Forcing (only possible with S5-130 AIK)
C a l l f u n c t i o n s e l e c t i o n menu
w i t h
m
S e l e c t PU-function
N o m e n c l a t u r e i n menu FORCE ON-OFF
T h i s f u n c t i o n
i s
o n l y p o s s i b l e i n o p e r a t i n g
mode 21 "PC W I T H P C - M E M
"
(only w i t h
PC S5-130
A/K)
o r
2 2 "PC W I T H PU-MEM".
Put s w i t c h on C P U t o "STOP" p o s i t o n .
Example: RQ
3.1
The c u r r e n t s i g n a l s t a t u s i s d i s p l a y e d .
Notes:
With t h e f u n c t i o n " f o r c i n g " , o u t p u t s
( Q ) ,
f l w s (F) and t i m e r s (T) may be switched t o
I
a d e s i r e d s i g n a l s t a t u s .
When f o r c i n g - o u t p u t s o r f l a g s , depending
on t h e t y p e of o p e r a t i o n progrannned
(e.g. =
) ,
t h e f o l l o w i n g r e a c t i o n i s
o b t a i n e d :
Operation "=": A s long a s key
i s
p r e s s e d , t h e s e l e c t e d o u t p u t o r f l a g w i l l
c a r r y "1" s i g n a l ; When r e l e a s i n g t h e key,
"0" s i g n a l .
Operation "S": When p r e s s i n g key
,
t h e s e l e c t e d o u t p u t o r f l a q w i l l c a r r y "1"
-
.
s i g n a l , which
i s
s e l f - h o l d i n g .
Important! Forced o u t p u t s o r f l a g s must be
r e s e t t o "0" s i g n a l .
Operation "R": When p r e s s i n g key
,
t h e s e l e c t e d o u t p u t o r f l a g
i s
r e s e t t o
"0" s i g n a l .
Operation "SET": A f t e r p r e s s i n g key
,
t h e p r e s e t time v a l u e of t h e s e l e c t e d
t i m e r e x p i r e s .
F o r c i n g of t i m e r s with SET i s o n l y
p o s s i b l e once. To r e p e a t t h e o p e r a t i o n
an i n i t i a l i z i n g p u l s e must f i r s t be
given on t h e CPU.
Operation "RT": A f t e r p r e s s i n g key
,
t h e s e l e c t e d t i m e r
i s
stopped and
r e s e t , provided it was s t a r t e d w i t h
SET and has n o t expired.
When t h e f u n c t i o n f o r c i n g
i s
ended w i t h
' ,
\ .
i
key
,
an i n i t i a l i z i n g p u l s e
i s
a c t i v a t e d by t h e CPU.