Siemens SIPART DR24 User Manual

Manual
1 Technical Description
1.5 Functional Description
1.5.7 Basic Functions (Arithmetic blocks b)
SIP ART DR24 6DR2410
C79000-G7476-C153-03
47
NOR function
A=E1
∨ E2 ∨ E3 =E1∧ E2 ∧ E3
with default: A = E1 (Negation of E1)
E1 E2 E3 A
0 0 0 1
100 0
010 0
110 0
0 0 1 0
101 0
011 0
111 0
Exclusive OR function (EXOR)
A=(E1
∧ E2) ∨(E1 ∧ E2)=(E1∨ E2) ∧ (E1 ∨ E2)
E1 E2 A
0 0 0
101
011
110
T--flip--flop
Every positive edge at T = E1 ∧ E2 (toggle) flips the
output to the respective other position. High at E3
(Reset) sets A to low and blocks E1 and E2.
E1 (T1) E1 (T2) E3 (R) A(Q) Remarks
x x 1 0
1 0 Qo → Qo
Q
f
li
p
stothe
1 ↗ 0 Qo → Qo
Q
f
l
i
p
s
t
o
t
h
e
other position
0x0 Qo
s
a
v
e
d
x00 Qo
save
d
D--flip--flop
Every positive edge at E2 (C = Clock) sets A to E1 (D
= file). Hi at E3 (R = Reset) sets A to low and blocks
E2.
E1 (D) E2 (C) E3 (R) A(Q) Remarks
x x 1 0
1 ↑ 0 1
0 ↑ 0 0
x0/10 Qo saved
If shift registers are switched with the D--flip--flop, the
positioning must be reversed due to the serial proc-
essing, i.e. the first stage is processed last.
ncon
≥ 1
Lo
Lo
.A#
b.F
--
# .1
# .2
# .3
n
---
nor
ncon
ncon
=1
.A#
b.F
--
# .1
# .2
n
---
Eor
ncon
T
1
T
2
Q
R
T&
Hi
Lo
.A#
b.F
--
# .1
# .2
# .3
n
---
tFF
Restart conditions after
power failure:
Power on Output A
bAtt = no 0
bAtt = YES last status
(hdEF)
ncon
Lo
Hi
Q
D
C
R
.A#
b.F
--
# .1
# .2
# .3
n
---
dFF
Restart conditions after
power failure:
Power on Output A
bAtt = no 0
bAtt = YES last status
(hdEF)

Siemens SIPART DR24 Specifications

General

Brand	Siemens
Model	SIPART DR24
Category	Controller
Language	English