Hach-Lange SI792 P, SI792x P, SI792x P-FF, SI792x P-PA User Manual - Manual (Page 55)

Operation—Foundation Fieldbus
53
6
.2
.3
T
rans
duc
er block
The tr
ansducer block pr
ovides fo
r acyclic dat
a transmission
. Ca
libr
ation
, conf
igur
atio
n, and
main
tenance comm
ands coming fro
m
the control
st
atio
n are pr
oce
s
sed in the T
ransducer
Block.
T
he bus p
a
rameter
s
for the tr
ansdu
cer
block (T
B) are shown in
T
able 16
(de
fault valu
es
are in bold type).
T
ab
le 16 T
rans
duc
er
b
lock
bus
p
aram
eters
P
a
ra
me
ter
Des
c
ription
R/W
Byt
e
s
Da
ta
type
Range
ST_REV
The
re
vi
si
on of t
he st
at
ic
da
ta
a
s
sociat
ed
wit
h
th
e f
un
c
ti
on
b
lock.
Use
d
b
y
t
he host
t
o
d
ete
rmine when
t
o re-r
ead t
he
st
at
ic
d
a
ta.
R2
T
h
e
r
e
vi
si
o
n
va
lue i
s
in
cr
ement
ed ever
y
ti
me a st
at
ic
p
ar
amet
er in th
e
b
lock is ch
ange
d.
TA
G
-D
E
S
C
The
u
s
e
r d
escr
ipt
ion
of
t
he
inte
nded
ap
plicat
ion
of
t
he
bl
o
c
k
.
R/W
3
2
D
e
fa
u
lt:
T
e
x
t
STRA
TEGY
The
st
rat
egy fie
ld ca
n
b
e used
to
id
ent
ify a
group
ing o
f bl
ocks.
Can
b
e u
s
e
d
for
an
y
pu
rpose
b
y
t
he user
.
R/W
2
D
e
fa
u
lt:
0
ALE
R
T_KEY
Iden
tif
icat
ion nu
mber th
at
may
be us
ed
by the
host syst
em
to
sor
t alar
ms and
o
the
r
d
e
vice
info
rmat
ion.
R/W
1
D
e
fa
u
lt:
0