Hach si792 T, User Manual

Page: 58 / 116

Operation—Foundation Fieldbus
56
6.2
.3
T
ra
ns
duce
r block
The
transducer block pr
ov
ides for a
cyclic dat
a transmission.
Calibr
atio
n, co
nfigur
ation, and
maintenance commands coming fr
om the control
st
ation are pr
ocessed in the T
ransducer
Block. T
he
bus p
arameter
s
for
the
tr
ansd
ucer
b
lock (
T
B)
are
shown
in
Ta
b
le 1
2
(
default
values
are
in bold type).
Tab
le 12 T
ran
sdu
cer bloc
k p
a
ram
ete
rs
P
a
ra
me
te
r
Des
c
ription
R/W
Byte
s
Da
ta
ty
p
e
Range
ST_REV
The
re
vi
sio
n
of t
he st
at
ic da
ta
associat
ed wit
h the
f
unct
ion
bl
ock.
Use
d
by
the host
t
o
de
te
rmine when
t
o re-r
ead t
he
st
at
ic dat
a.
R2
The rev
ision val
ue
is
in
cr
ement
ed every
time a s
tat
ic
p
a
ra
me-
te
r in th
e block
is
chan
ged.
TA
G
-D
E
S
C
The
user
de
scri
pti
on
of
t
he
in
ten
ded ap
plicat
ion of
t
he
bl
ock.
R/W
3
2
Def
ault:
T
ext
STRA
TEGY
T
h
e str
a
te
g
y fi
e
ld
ca
n be
us
ed
to
id
ent
ify a g
roup
ing of
bl
ocks.
Can
be
u
se
d f
or
an
y
pur
pose
by th
e user
.
R/W
2
Def
ault:
0
ALE
R
T_
KEY
Iden
tif
icat
ion numb
er th
at may
be
us
ed
by
the host
syst
em to
sort
alar
m
s and
ot
he
r
device
in
for
m
at
ion.
R/W
1
Def
ault:
0