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Au
tom
atio
n a
nd
Dri
ves
Ener
gy &
Au
tom
atio
n
Safe
ty In
teg
rate
dE
no
vati
on
fro
mSi
em
en
s
S
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ag
en
da
–“L
ets
ta
lk S
afe
ty”
Stan
dar
ds
-M
ach
ine
Safe
ty &
wh
at h
as c
han
ged
Asc
erta
inin
g y
ou
r sa
fety
leve
l of
risk
Fun
ctio
nal
wir
ing
exa
mp
les
Evo
luti
on
of
safe
ty
Tech
no
log
y to
day
Yo
u a
nd
th
e b
enef
its
of
Inte
gra
ted
Saf
ety
Safe
ty In
teg
rate
dca
se s
tud
ies
Nee
d H
elp
? Sa
fety
Tra
inin
g C
lass
es e
tc.
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ch
an
ge
s in
th
e S
afe
ty L
an
dsc
ap
e
Ch
ang
ing
Saf
ety
Stan
dar
ds
That
was
th
en…
NFP
A 1
99
7“W
her
e a
Cat
ego
ry 0
sto
p is
use
d fo
r th
e em
erg
ency
sto
p f
un
ctio
n, i
t sh
all h
ave
on
ly h
ard
wir
ed e
lect
rom
ech
anic
al c
ompo
nen
ts.
In
addi
tion
, its
ope
rati
on s
hal
l not
dep
end
on e
lect
ron
ic lo
gic
(har
dw
are
or s
oftw
are)
…”
NO
W S
ince
…N
FPA
79
20
02
ed
itio
nN
ew w
ordi
ng
allo
ws
PLC
Use
in S
afet
y-Re
late
d Fu
nct
ion
s:“S
oft
war
e an
d f
irm
war
e-b
ased
co
ntr
olle
rs t
o b
e u
sed
in s
afet
y-re
late
d
fun
ctio
ns
shal
l be
liste
d f
or
such
use
.“
A.9
.4.3
IE
C 6
1508
pro
vide
s re
quire
men
ts fo
r the
des
ign
of
cont
rol s
yste
ms
inco
rpor
atin
g th
e us
e of
sof
twar
e an
d fir
mw
are
base
d co
ntro
llers
to p
erfo
rmin
g sa
fety
-rel
ated
fu
nctio
ns.
A.1
1.3.
4 IE
C 6
1508
pro
vide
s re
quire
men
ts fo
r the
des
ign
of
softw
are
and
firm
war
e ba
sed
cont
rolle
rs fo
r use
in c
ontro
l sy
stem
s pe
rform
ing
safe
ty-re
late
d fu
nctio
ns.
Per N
FPA
79…
..Lis
ted
mus
t mee
t
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
AN
SI
http
://w
ww
.ans
i.org
Nat
iona
l Con
sens
us S
tand
ards
B11
Serie
s
AN
SI B
11 T
R-6
(in
deve
lopm
ent)
Con
trol
relia
bilit
y ci
rcui
t req
uire
men
ts a
nd e
xam
ples
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
AN
SI B
11
TR
3
Thre
e di
stin
ct a
ppro
ache
s to
risk
re
duct
ion:
Ris
k re
duct
ion
by d
esig
nR
isk
redu
ctio
n by
saf
egua
rdin
g pr
otec
tive
devi
ces
Ris
k re
duct
ion
by a
dmin
istra
tive
cont
rols
and
oth
er p
rote
ctiv
e m
easu
res
Equ
ally
impo
rtant
is th
e id
entif
icat
ion
of th
e ta
sks
and
haza
rds
of th
e m
achi
nery
in e
ach
oper
atin
g m
ode.
Doc
umen
tatio
n of
dec
isio
ns m
ade
is c
ritic
al fo
r the
pro
cess
.
The
AN
SI r
isk
ass
ess
me
nt
mo
de
l is
stra
igh
t fo
rwa
rd…
.D
esi
gn
ou
t th
e r
isk
or
safe
gu
ard
it.
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
AN
SI B
11
TR
3
Exa
mpl
e fo
rm fr
om T
R3
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ca
teg
ori
es
acc
. to
EN
95
4-1
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Wh
at’
s h
ap
pe
nin
g w
ith
th
e IE
C
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
Mac
hin
es w
ith
C
om
ple
x C
on
tro
ls P
LC
Mac
hin
es w
ith
less
co
mp
lex
con
tro
ls (
Hyd
rau
lic,
Pneu
mat
ic, a
nd
Rel
ays)
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ex
am
ple
s: C
ate
go
rie
s a
cc. t
o E
N9
54
-1
Requ
irem
ents
of
B m
ust
be
fulf
illed
: th
e sa
fety
fu
nct
ion
sh
all b
e ch
ecke
d, a
ddit
ion
ally
at
suit
able
tim
e in
terv
als o
r
or
ASi
safe
3TK
28
F-C
PU
Posi
tivi
ly d
rive
n
Cat
2St
and
ard
s
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ex
am
ple
s: C
ate
go
rie
s a
cc. t
o E
N9
54
-1
or
ASi
safe
F-C
PU
E-ST
OP
Prot
ecti
v do
or
mon
itor
ing
wit
h p
osit
ion
-s
wit
ches
Prot
ecti
v do
or m
onit
orin
g w
ith
mag
net
ic-s
wit
ch
3TK
28
Cat
3
24
V2
4V
Requ
irem
ents
of
B m
ust
be
fulf
illed
: a s
ingl
e fa
ult
may
not
lead
to
the
loss
of
the
safe
ty f
un
ctio
n;
sin
gle
fau
lts
mu
st b
e de
tect
ed.
Posi
tivi
ly d
rive
n
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ex
am
ple
s: C
ate
go
rie
s a
cc. t
o E
N9
54
-1
3TK
28
Cat
4
or
ASi
safe
F-C
PU
Requ
irem
ents
of
B m
ust
be
fulf
illed
: a
sin
gle
fau
lt m
ust
be
dete
cted
bef
ore
or a
tth
e n
ext
dem
and
upo
n t
he
safe
ty
fun
ctio
n.
VS1
VS2
VS1
VS2
VS1
VS2
Posi
tivi
ly d
rive
n
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
The
Evo
luti
on
of
Safe
ty
PLC
Co
ntr
ol
PLC
Co
ntr
ol
Tech
no
log
yTe
chn
olo
gy
Co
ntr
ol C
abin
et
Co
ntr
ol C
abin
et
Safe
ty R
ela
ysSa
fety
Re
lays
PRO
FIB
US
PRO
FIB
US
Prio
r to
20
02
, U.S
.A.
requ
ired
sep
arat
ion
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
The
Evo
luti
on
of
Safe
ty
PLC
Co
ntr
ol
PLC
Co
ntr
ol
Tech
no
log
yTe
chn
olo
gy
Co
ntr
ol C
abin
et
Co
ntr
ol C
abin
et
Safe
ty R
ela
ysSa
fety
Re
lays
PRO
FIB
US
PRO
FIB
US
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
PLC
con
trol
tech
nolo
gy
PRO
FIB
US
Con
trol
cab
inet
Safe
ty-r
elat
ed r
elay
s
+ sa
fety
+ sa
fety
Safe
ty in
tegr
ated
–PR
OFI
safe
and
SA
W
Saf
ety
mon
itor
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Safe
ty In
teg
rate
dTh
e in
teg
rate
d p
rog
ram
fo
r sa
fety
te
chn
olo
gy
3TK
2840
Elec
tron
ic
3TK
28R
elay
3TK
285.
Safe
ty R
elay
&C
onta
ctor
Rel
ays3T
K28
45M
ulti-
func
tion
ASI
safe
Safe
tyM
onito
r
ET20
0 S
SIG
UA
RD
3RA
7Sa
fe lo
ad fe
eder
s
Det
ectio
n an
d ev
alua
tion
Det
ectio
n an
d ev
alua
tion
Func
tiona
lity
Pric
e
A c
ompl
ete
prod
uct r
ange
for
an o
ptim
al s
afet
y co
ncep
tA
com
plet
e pr
oduc
t ran
ge fo
r an
opt
imal
saf
ety
conc
ept
ET 2
00 S
F-C
PUS7
300
-FS7
400
-F
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
The
Sa
fe A
pp
roa
ch –
Co
st E
ffe
ctiv
e S
olu
tio
ns
Four
mai
n op
tions
:
•H
ardw
ire w
ith s
afet
y re
lays
•AS
Isaf
e (S
afet
y at
Wor
k)
•Sa
fety
rat
ed P
LC (
Siem
ens
S7 3
00/4
00F)
•Sa
fety
rat
ed P
LC w
ith d
istr
ibut
ed I
/O
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Fun
ctio
na
lity
of
a S
afe
ty C
ircu
it –
Safe
ty
Re
lay
24V
or 1
15VA
CPo
wer
Sup
ply
0V
Dire
ct o
peni
ng
actio
n:G
uara
ntee
s th
at a
ll N
C
cont
acts
are
in th
e op
en p
ositi
on w
hen
actu
ated
Red
unda
ncy:
ensu
res
safe
ty
func
tiona
lity
even
if a
fa
ilure
dis
able
s on
e ch
anne
lSa
fety
rela
y un
it:Fa
ult d
etec
tion
and
eval
uatio
n;
open
s th
e ci
rcui
t in
cas
e of
a
failu
re.
Res
et:
reac
tivat
es
the
safe
ty
circ
uit
Feed
back
Lo
op:
mon
itors
the
corre
ct
oper
atio
n of
the
cont
acto
r coi
ls
Inpu
t Cha
nnel
sE
nabl
ing
Circ
uits
Feed
back
Loo
pP
ower
Sup
ply
Sens
ors:
Initi
ate
mac
hine
shu
t do
wn
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
The
Sa
fe A
pp
roa
ch –
Co
st E
ffe
ctiv
e S
olu
tio
ns
Four
mai
n op
tions
:
•H
ardw
ire w
ith s
afet
y re
lays
•A
SIs
afe
(Saf
ety
at W
ork)
•Sa
fety
rat
ed P
LC (
Siem
ens
S7 3
00/4
00F)
•Sa
fety
rat
ed P
LC w
ith d
istr
ibut
ed I
/O
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
AS-
Inte
rfa
ceA
SISa
feTM
AS-
Inte
rfac
eis
an
“O
PEN
”in
dust
rial
com
mu
nic
atio
n
net
wor
k fo
r da
ta e
xch
ange
bet
wee
n E
lect
ro-M
ech
anic
al
inp
ut/
outp
ut
dev
ices
an
d au
tom
atio
n c
ontr
olle
rs (
PLC
’s)
Ove
r 1
0 m
illio
n n
odes
hav
e be
en in
stal
led
in p
lan
ts a
nd
syst
ems
sin
ce 1
99
4
SA
FETY
AT
WO
RK
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ma
jor
Co
mp
on
en
ts –
AS-
I Sa
fety
at
Wo
rk
Saf
ety
Mon
itor
Saf
ety
I/O B
lock
s
Con
figur
ing
Sof
twar
e
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
AS-
I Dis
trib
ute
d C
on
fig
ura
tio
n -
Safe
ty a
t W
ork
Stan
dard
PLC
and
stan
dard
mas
ter
Saf
ety
mon
itor
Saf
e em
erge
ncy
stop
but
ton
AS
-ipo
wer
uni
tS
afe
posi
tion
switc
hS
afe
light
ba
rrier
Saf
e lig
ht
grid
Stan
dard
mod
ule
Saf
em
odul
e
Stan
dard
mod
ule
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Gat
eway
toP
RO
FIB
US
Saf
ety
mon
itor
Saf
e em
erge
ncy
stop
but
ton
AS
-ipo
wer
uni
tS
afe
posi
tion
switc
hS
afe
light
ba
rrier
Saf
e lig
ht
grid
Stan
dard
mod
ule
Saf
em
odul
e
Stan
dard
mod
ule
AS-
I Dis
trib
ute
d C
on
fig
ura
tio
n -
Safe
ty a
t W
ork
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Fails
afe
Slav
e
1 3 7 5 3 1 8 6
. . .
. .
Safe
ty M
on
ito
r
1
4n
Cod
e ta
bles
of
Fails
afe
Slav
es
n
Cod
e C
hec
ker: 0 1
0 0
Cyc
les
:
5 8 3 5 2 1 7
4 5 8 3 5 2 1 74 5 8 3 5 2 1 7
123 4567 8
0 1
0 1
1 0
0 0
0 0
1 1
0 1
0 1
0 0
1 0
0
0 0
1
0 1
1 1
Cod
e is
rig
ht
= R
UN
Safe
ty m
ech
an
ism
s -
Safe
ty M
on
ito
r
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Safe
ty m
echa
nism
s -
Cod
e C
heck
er
Fails
afe
Slav
e
1 3 7 5 3 1 8 6
. . .
. .
1
4 5 8 3 5 2 1 7n
Cod
e ta
bles
of
Fails
afe
Slav
es
n
Emer
gen
cy S
top
pu
shed
:C
od
e n
ot
rig
ht
= S
TOP!
4 0 . . .
Fails
afe
dete
ctio
n by
one
def
ined
cod
e
0 1
0 0
0 0
0 0
Safe
ty M
on
ito
r
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Easy
Gro
upin
g of
Saf
ety
Sign
als
with
A
S-In
terf
ace
Safe
ty a
t Wor
k
Sta
ndar
d-PL
C a
ndst
anda
rd-m
aste
r
AS
-ipo
wer
uni
t
safe
ty m
onito
rsa
fety
mon
itor
safe
mod
ule
stan
dard
mod
ule
Saf
eem
erge
ncy
stop
butto
n
Saf
eem
erge
ncy
stop
butto
n
Saf
eem
erge
ncy
stop
butto
n
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Dev
ices
with
dire
ct
acce
ssto
the
safe
outp
uts
Dev
ices
with
logi
c Fu
nctio
ns a
re p
repr
oces
sed
Avai
labl
e D
evic
es
(pla
ceab
le b
y dr
ag a
nd d
rop
toth
e co
rresp
ondi
ng c
olum
n )
ASI
Mon
Sof
twar
eEa
sy C
onfig
urat
ion
via
Dra
g &
Dro
p
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
The
Sa
fe A
pp
roa
ch –
Co
st E
ffe
ctiv
e S
olu
tio
ns
Four
mai
n op
tions
:
•H
ardw
ire w
ith s
afet
y re
lays
•AS
Isaf
e (S
afet
y at
Wor
k)
•Sa
fety
rat
ed P
LC (
Siem
ens
S7 3
00/4
00F)
•Sa
fety
rat
ed P
LC w
ith d
istr
ibut
ed I
/O
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Sie
men
s S
afet
y P
LC E
xper
ienc
e
1988
:S5
-115
F19
80:
S5-1
10F
1994
:S5
-95F
1999
: S7
-400
F /
PRO
FIsa
fe20
02:
S7-3
15F
/15
1F
/ 416
F
PRO
FIsa
fe20
03:
S7-3
17 F
/PR
OFI
safe
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ach
ievi
ng
Sa
fety
Inte
gra
ted
Inte
llig
ent
I/O
Hig
hly
rel
iab
le N
etw
ork
Safe
ty r
ated
CPU
Co
mp
lete
ly in
teg
rate
Saf
ety
into
yo
ur
Au
tom
atio
n C
on
tro
l Arc
hit
ectu
re
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Safe
ty I
/O L
ayer
Safe
ty N
etw
ork
Laye
r
Safe
ty C
PU
Lay
er
…b
ein
g r
ea
lly
sure
re
qu
ire
s 3
leve
ls
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ce
rtif
ied
Sa
fety
I/O
Dec
entr
aliz
edI/O
Stat
us
Test
sig
nal
Sens
or s
uppl
y
Dat
a
CR
C
uP 2
CPU
s C
ross
Ch
eck
Each
Oth
er!
Fails
afe
I/O m
od
ule
s p
rote
ct lo
cally
& s
imp
lify
the
des
ign
an
d w
irin
g,
Even
if t
he
PLC
an
d N
etw
ork
Fai
l, th
e I/O
Mo
du
le c
an g
o in
to S
afet
y Lo
cko
ut
00
11
00
01
11
00
01
Two
Proce
ssors
atM
odule
uP
2u
P 2
Safe
Sh
ut
Do
wn
!
CH
A P
uls
e C
hec
k
uP
1u
P 1
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ce
rtif
ied
Sa
fety
Ou
tpu
t
Dec
entr
aliz
edI/O
One
Out
put
chan
nel
Posi
tive
switc
hed
Gro
und
Switc
hed
uP 1
uP 2
Ou
tpu
t si
gn
al
Dat
a
CR
C
Inpu
t dat
a
Rea
d b
ack
Rea
d b
ack
Ou
tpu
t m
odu
le in
clu
des
inpu
t fu
nct
ion
s to
tes
t C
ontr
ol c
ompo
nen
ts
00
11
00
01
11
00
uP
2u
P 2
uP
1u
P 1
CH
A P
uls
e C
hec
k
Two
Proce
ssors
atM
odule
Fails
afe
I/O m
od
ule
s p
rote
ct lo
cally
& s
imp
lify
the
des
ign
an
d w
irin
g,
Even
if t
he
PLC
an
d N
etw
ork
Fai
l, th
e I/O
Mo
du
le c
an g
o in
to S
afet
y Lo
cko
ut
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
The
Ne
two
rk L
eve
l
All
dat
a an
d s
tate
s at
eac
h le
vel…
…m
ust
be
chec
ked
an
d r
ech
ecke
d
Secu
rity
Sen
sor
Syst
em
Wir
eles
s
PRO
FIB
US
Pro
xy
Mo
tio
nC
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l
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on
tro
ller
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entr
aliz
edI/O
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ern
etN
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Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Safe
ty C
com
mu
nic
ati
on
via
PR
OFI
safe
PRO
FIsa
fe, t
he
app
licat
ion
pro
file
is
ind
epen
den
t o
f th
e m
edia
Tech
no
log
y ca
n b
e u
sed
bo
th
on
PR
OFI
BU
S an
d E
ther
net
PRO
FIsa
fe d
etec
tsco
mm
un
icat
ion
s fa
ult
s
Seri
al n
um
erat
ion
of
PRO
FIsa
fe-t
eleg
ram
Tim
e m
on
ito
rin
g
Au
then
tici
ty m
on
ito
rin
gvi
a u
niq
ue
add
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Op
tim
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CR
C-c
hec
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Safe
ty d
ata
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art
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stan
dar
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lPRO
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Fail-
safe
dat
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anda
rd d
ata
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a U
nit
Net
wo
rkSt
and
ard
s
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Siem
ens
ach
ieve
s d
iver
sity
on
a s
ing
le p
roce
sso
r!
Tim
e r
ed
un
da
ncy
an
d d
ive
rsit
y in
ste
ad
of
ph
ysic
al r
ed
un
da
ncy
Co
ntr
olle
r
Tim
e t
est
ing
an
d d
ive
rsit
y cr
ea
te t
est
ed
Lo
gic
Sta
nd
ard
-Op
era
tio
n f
or
DA
TA
rep
rese
nts
th
e p
rog
ram
wri
tte
n in
la
dd
er
log
ic
Div
ers
e O
pe
rati
on
fo
r C
OM
P
cre
ate
d b
y co
mp
ile
r re
qu
irin
g n
o
pro
gra
mm
ing
CP
U-i
nte
rna
l co
mp
ari
son
at
ou
tpu
tdri
ver
all
ow
s I/
O t
o s
top
sa
fety
Exam
ple:
AN
D In
stru
ctio
n
Fail
safe
CP
U P
rog
ram
TimeTest
DAT
A0
DAT
A1
CO
MP
FFFF
HC
OM
P0 H CR
C
Con
vert
Bit-
AN
D in
Bitp
roce
ssor
DAT
A
Wor
d-O
Rin
ALU
CO
MP
Com
paris
on
Com
paris
on
Dat
a
Cop
y
Bui
ld
PR
OFI
Saf
ete
legr
am
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ord
er-N
o.
3R
K3
14
1-1
CD
10
sc
rew
ter
min
als
3R
K3
14
1-2
CD
10
sp
rin
g-l
oad
ed t
erm
inal
s
Imp
lem
en
t th
e la
test
te
chn
olo
gy
in y
ou
r SA
FETY
a
pp
lica
tio
ns
Hig
hli
gh
ts D
P/A
S-i F
-Lin
k
Full
TIA
-In
teg
rati
on
of
ASI
safe
in S
afet
yIn
teg
rate
d:
con
sist
ent,
th
rou
gh
ou
tth
ew
ho
lep
lan
t an
d e
asy
to h
and
le!
Up
link
of
ASI
safe
on
tou
pp
erle
vels
-i.e
. PR
OFI
BU
S an
d P
RO
FIN
ET
Firs
t sh
ow
of
the
F-Li
nk
@
SPS/
IPC
/Dri
ves
20
06
Inth
efi
rst
rele
ase
on
lyF-
DI‘s
(no
saf
eo
utp
ut)
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Safe
ty In
teg
rate
d N
etw
ork
To
po
log
y (1
):C
on
ne
ctio
n o
f A
S-i t
o P
RO
FIB
US
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Safe
ty In
teg
rate
d N
etw
ork
To
po
log
y (2
):C
on
ne
ctio
n o
f A
S-i t
o P
RO
FIN
ET
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Safe
ty In
teg
rate
d N
etw
ork
To
po
log
y (3
):C
on
ne
ctio
n o
f A
S-i t
o P
RO
FIN
ET
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
SIM
ATI
C S
afe
ty In
teg
rate
d c
on
tro
lle
rsFo
r fa
cto
ry a
uto
ma
tio
n
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
SIM
ATI
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afe
ty In
teg
rate
dC
on
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lle
rFo
r Fa
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ryA
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ma
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n
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CPU
41
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64
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dar
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Ris
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vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
circ
uit
cont
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r
PLC
M ~M ~
M ~M ~
M ~M ~DS
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it
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it
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it
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it
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circ
uit
cont
acto
rSa
fety
Mot
or S
tart
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Stan
dard
PLC
Safe
ty R
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pica
lN
EW!
Safe
ty L
iste
d PL
C(in
clud
es s
tand
ard
PLC
)St
and
ard
s
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
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or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Trad
ition
alN
EW!
Rea
l Wor
ld E
xam
ple
: Mot
or S
tarte
r Pan
el
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Exis
tin
g C
ontr
olle
r
Typ
ica
l Sa
fety
PLC
Arc
hit
ect
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I/O
ET 2
00SF
CPU
on
PRO
FIB
US
PRO
FISa
fe
Lase
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PRO
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200
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CP
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M
Safe
ty P
LC
Con
trol
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Safe
ty P
LC
Con
trol
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Cab
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less
Sa
fety
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Safe
tyra
ted
PLC
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
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or
Fact
ory
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tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Safe
ty In
teg
rate
d -
Be
fore
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
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nin
g
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ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Aft
er
–w
ith
Sa
fety
Inte
gra
ted
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
SIM
ATI
C S
afe
ty In
teg
rate
d
Cu
stom
er b
enef
its
Co
st e
ffe
ctiv
e c
om
pli
an
ce
Re
du
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inve
nto
ry t
ha
nks
tosa
vin
gs
on
com
po
ne
nts
On
e C
PU f
or
stan
dar
dan
d s
afet
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late
d a
uto
mat
ion
Co
exis
ten
ceo
fst
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saf
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-rel
ated
pro
gra
m p
oss
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o
n o
ne
CPU
On
e PR
OFI
BU
S/N
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able
fo
r st
and
ard
and
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ety-
rela
ted
co
mm
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icat
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Fast
er
syst
em
setu
pa
nd
com
mis
sio
nin
gIm
pro
ved
syst
emin
teg
rati
on
Inte
gra
ted
en
gin
eeri
ng
fo
r st
and
ard
and
fails
afe
con
tro
l sec
tio
n
Use
of
exis
tin
gPR
OFI
BU
Sca
ble
fo
r fa
ilsaf
e co
mm
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icat
ion
to
o
Exte
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ved
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no
stic
s fu
nct
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s
Stan
dar
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ctio
nal
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mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
SIM
ATI
C S
afe
ty In
teg
rate
d
Cu
stom
er b
enef
its
Incr
ea
sed
fle
xib
ilit
yTh
e lo
gic
of
the
safe
ty f
un
ctio
ns
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ple
men
ted
per
so
ftw
are
inst
ead
of
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wir
ing
Easy
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exp
and
, an
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men
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e s
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r P
lan
t A
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ma
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con
tras
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dw
are
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ns,
so
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are
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tio
ns
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pro
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ult
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rove
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gn
ost
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fun
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ns
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rove
d u
pti
me
via
red
uce
d t
ime
for
tro
ub
le s
ho
oti
ng
Mo
re R
eli
ab
le a
nd
mo
re e
ffe
ctiv
e in
pre
ven
tin
g a
ccid
en
ts
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Pear
son
Cas
e St
udy
(sou
rce
Pear
son
Pack
agin
g)
Cas
e E
rect
or P
acka
ging
Mac
hine
Dis
cret
ely
Wire
d M
achi
neP
LC4
Ele
ctric
ians
mor
e th
an 1
wee
k to
wire
4 x
76 h
ours
= 3
04 h
ours
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rtup
2 da
y fo
r 2 e
lect
ricia
ns2
x 2
x 8
= 3
2 ho
urs
•C
ateg
ory
3 sa
fety
sys
tem
4 x
8 =
32
hou
rs
Tota
l36
8 ho
urs
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Cas
e E
rect
or P
acka
ging
Mac
hine
Mac
hine
bui
lt w
ith d
istri
bute
d I/O
and
dis
tribu
ted
safe
ty I/
O
·PL
C 2 E
lect
ricia
ns 1
wee
k to
wire
2 x
40 =
80
hour
sN
o ju
nctio
n bo
xes
No
cond
uit
No
wire
mar
kers
No
wire
term
inal
sS
tartu
p le
ss th
en 1
/2 d
ay fo
r 2 E
lect
ricia
ns2
x 4
= 8
hour
s
·C
ateg
ory
3 sa
fety
sys
tem
2 x
4 =
8 ho
urs
Elim
inat
e C
ondu
itS
igni
fican
t Lab
or R
educ
tion
Inst
alla
tion
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dwar
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anel
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ceTo
tal
96 h
ours
Pe
ars
on
Ca
se S
tud
y (s
ou
rce
Pe
ars
on
P
ack
ag
ing
)
-26%
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
CA
Mo
tio
n C
ase
Stu
dy
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
KU
KA
Red
uce
s C
ost
& Im
pro
ves
Safe
ty
Rod
Bro
wn,
Con
trol
s Pr
oces
s En
gine
er a
t Kuk
aFl
exib
le
Prod
uctio
n Sy
stem
s st
ates
sa
ving
s of
:85
% o
f con
vent
iona
l saf
ety
com
pone
nts
30 to
35%
in la
bor c
osts
20 to
25%
in re
duce
d in
stal
latio
n tim
ead
ditio
nal r
educ
tions
in
pane
l siz
e, fl
oor s
pace
, and
engi
neer
ing
effo
rtA
ntic
ipat
ed o
pera
ting
effic
ienc
ies
incl
ude:
redu
ced
dow
n tim
e du
e to
impr
oved
dia
gnos
tics
impr
oved
pro
duct
ivity
due
toin
crea
sed
up ti
me
Over $
3 M
illio
n In
Savi
ngs
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ben
efits
:
The
Sie
men
s H
ardw
are
cost
$4,
100
mor
e th
an th
e “o
ld”S
afet
y S
yste
m
Red
uced
the
over
all c
osts
by
$13,
800
/ Too
l w
ith S
iem
ens
Saf
ety
Red
uctio
n of
initi
al e
ngin
eerin
g co
sts.
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uctio
n of
test
ing
cost
s(e
ach
syst
em th
at g
oes
out t
he d
oor)
.
Off
the
shel
f pro
duct
s, a
vaila
ble
in 1
90 c
ount
ries
Impr
oved
Dia
gnos
tics
prov
idin
g en
hanc
ed a
vaila
bilit
yan
d ea
sier
trou
ble
shoo
ting
(qui
cker
sta
rtup
and
low
er s
ervi
ceab
ility
cost
s).
300
Tool
s/ye
ar x
$9,
700
= $
2.91
Mill
ion/
year
cos
t red
uctio
n
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Trai
nin
g
Bes
t Pr
acti
ce:
exam
ple
of
a M
ajo
r Se
mic
on
du
cto
r O
EM
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Sie
me
ns
Tra
inin
g C
lass
es
“SIT
RA
IN”
Trai
nin
g
ww
w2
.sea
.sie
men
s.co
m/t
rain
ing
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
ww
w.s
afet
yth
emo
vie.
com
Trai
nin
g
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ne
ed
Mo
re In
form
ati
on
or
Ha
nd
s O
n
ww
w.A
uto
mat
ion
Even
ts.c
om
Trai
nin
g
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Ke
y It
em
s
Ch
ang
es t
o t
he
NFP
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9 2
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Ris
k A
sses
smen
t n
ow
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ed b
y O
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ay’s
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hn
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ur
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ty O
pti
on
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afet
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rk3
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fety
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S7
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0/4
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4.
Safe
ty w
ith
Dis
trib
ute
d I/
O
Ben
efit
s o
f D
istr
ibu
ted
Saf
ety
On
e PL
C f
or
bo
th A
uto
mat
on
an
d S
afet
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soft
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ron
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and
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d S
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he
sam
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ve o
n in
stal
lati
on
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gin
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ts ,
and
star
tup
co
sts
Safe
ty S
emin
ars,
Tra
inin
g a
nd
Wo
rksh
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s
Trai
nin
g
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
SIM
ATI
C S
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ty In
teg
rate
d
For
all
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ust
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l en
viro
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ts
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du
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t C
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Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
SIM
ATI
C S
afet
y In
teg
rate
d f
or
Fact
ory
Au
tom
atio
n
Au
tom
atio
n a
nd
Dri
ves
SIM
ATI
CSa
fety
Inte
gra
ted
04
-10
-07
Siem
ens
AG
20
05
-Su
bjec
t t
o c
han
ge w
ith
ou
t p
rior
no
tice
Trai
nin
g
Stan
dar
ds
Ris
k Le
vels
Fun
ctio
nal
Exa
mp
les
Evo
luti
on
of
Safe
ty
Tech
no
log
y To
day
Ben
efit
s
Cas
e St
ud
y
Than
k Y
ou
!
