Siemens Moore 353 - RSF_ - RS Flip-Flop; RTG_ - Rising Edge Trigger; RTT_ - Real Time Clock Trip (V2.0)

Function Blocks UM353-1
March 2003
3-94
3.2.87 RSF_ - RS Flip-Flop
RSF_ function blocks perform a reset dominant flip-flop
function as detailed in the truth table. An unused S input
will be set high (1) and an unused R input will be set low
(0).
POWER UP - During a warm start, when PU LAST is set to
YES, the block will initialize at the input/output states at the
instant power down occurred. A cold start will initialize the
input/output states to 0.
3.2.88 RTG_ - Rising Edge Trigger
RTG_ function blocks provide a high (1) output for one scan
cycle each time input P transitions from a low (0) to a high
(1).
3.2.89 RTT_ - Real Time clock Trip (V2.0)
RTT_ function blocks provide high (1) outputs when time
from the CLOCK block coincides with the TIME, DATE, &
DAYS of the Week TRIP settings. The block outputs will
remain high while the CLOCK coincides with the settings
BLOCK DIAGRAM
R
O1
S
RS FLIP-FLOP TRUTH TABLE
SR
LO O1
1
0
0
0
XX
X
1
0
10
000
1
1
S - SET
Input
R - RESET
Input
O1 - O
utput
LO -
Last
O
utput
O
utput
1
R
eset
S
et
X (don't care)
.
.
BLOCK DIAGRAM
O
utput
1
P
O1
P
ulse Input
.
.
R
eset
RS FLIP-FLOP
O1
O
utput
1
RS FLIP-FLOP
RSF_
ESN =
000
R
S
et
S
E
E
xec.
S
eq.
N
o.
(H)
.................. 001 to 250
S
T
U
P
N
I
INPUT S
(H)
...........
loop tag.block tag.output
(
null
)
R
T
U
P
N
I
SN
INPUT R
(H)
...........
loop tag.block tag.output
(
null
)
LPU TSA
P
ower
U
p
LAST
(S)
................... NO/YES (YES)
P
ulse Input
RISING EDGE TRIGGER
O1
O
utput
1
RISING EDGE
RTG_
ESN =
000
P
ESN
E
xec.
S
eq.
N
o.
(H)
.............. 001 to 250
P
T
U
P
N
I
INPUT P
(H)
........
loop tag.block tag.output (null)
TRIGGER
REAL TIME TRIP
RTT_
E
TIME TR
i
P
(S)
......
00:00:00 - 23:59:59 (0)
MNTH TR
i
P
(S)
........................... 01 - 12 (01)
MN
IM
S
H
DA
Y
TM
T
i
M
e Trip
DT
DY
D
a
T
e Trip
D
a
Ys
Trip
1 7
3
6:
TIME
MT WT F S
DAYS
T
T
0111110
DAYS TR
i
P
(S)..................... SMTWTFS (1111111)
TRP
TRP
T
R
P
MNTH
1 2
DAY
3 0
YEAR
9 991
DaTe Trip
TiMe Trip
DaYs Trip
S
DAY TR
i
P
(S).............................. 01 - 31 (01)
DYATRP
YEAR TR
i
P
(S)
.................... 1970 -3099 (1999)
YE RATRP
:16
Rev. 2
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