Rockwell Automation SB3000 Configuration and Programming - Manual (Page 90)

4-10 SB3000 Drive Configuration and Programming
Figure 4.3 – Data/Time Flow for UDC Module and PMI
(B
a
c
k
g
ro
u
n
d
)
(F
o
reg
ro
und
)
PM
I
Pro
c
e
sso
r
UDC
M
odu
le
Au
to
Ma
x
Pro
c
e
sso
r
A
u
to
Ma
x
ta
sk
wri
te
s
n
e
w
va
lu
e
s
t
o
co
n
tro
l co
mm
a
n
d
a
n
d
app
lic
at
io
n r
egi
s
ter
s
i
n
UDC
d
u
a
l p
o
rt me
mo
ry
Di
ag
nos
ti
c
s
, Co
m
m
uni
c
a
ti
on
, M
ana
gem
en
t,
e
tc
.
Ve
c
to
r
*
Assu
m
p
ti
o
n
s
:
1.
Th
e UD
C t
a
s
k
(s
)
hav
e be
en
pu
t i
n
to
r
u
n b
e
fo
re
t
h
e
v
e
c
tor
c
o
n
tr
o
l
al
go
ri
th
m
i
s
t
u
rn
ed
on
.
*C
omm
u
ni
cat
ion o
f co
m
m
an
d an
d f
eed
ba
ck re
gi
st
e
rs b
e
tw
e
e
n
t
h
e
UDC a
nd
P
M
I sy
nchr
on
iz
ed
UDC t
a
sks an
d PMI
c
o
n
tr
o
l al
g
o
ri
th
m
s
ar
e
no
t s
y
n
c
h
roni
z
e
d.
Th
e v
e
c
tor
c
o
n
tr
o
l al
g
o
ri
th
m
r
u
n
s
, o
n
t
h
e a
v
er
age
, ev
er
y
1 m
s
ec
.
10
m
s
e
c
.
(2
0
t
ick
s)