R
egister address in
M
odicon
T
emporary memory of
VEGASCAN
(
2
words
=
4
byte
)
31023
PC
/
DCS
output
6
:
S
tatus
…
…
31113
PC
/
DCS
output
29
:
M
easured value
31115
PC
/
DCS
output
29
:
S
tatus
31117
PC
/
DCS
output
30
:
M
easured value
31119
PC
/
DCS
output
30
:
S
tatus
A
s an alternative
,
register address
41001
is also available as
start address
(
function code
03
).
T
he actual measured values are transmitted as signed data
comprising four octets
.
I
n addition to the measured value
,
the
status of the measured value is supplied in a second register
word
.
E
xample of the data of a
PC
/
DCS
output
F
loat
B
it
15
…
0
F
loat
B
it
31
…
16
R
egister addr
.
31001
R
egister addr
.
31002
H
igh
-
B
yte
/
L
ow
-
B
yte
H
igh
-
B
yte
/
L
ow
-
B
yte
N
ote
:
W
ith the switching inputs of
PLICSRADIO
®
C
62
(
measure
-
ment loops
4
…
6
)
the value
0
(
switch open
)
and
100
(
switch
closed
)
are transmitted as measured values
,
the units are
deleted
.
984
F
loating point
:
I
ntel single precision real
.
F
irst register
contains bits
15
…
0
of
32
bit number
(
bits
15
…
0
of
signi
fi
cand
).
S
econd register contains bits
31
…
16
of
32
bit
number
(
exponent and bits
23
…
16
of signi
fi
cand
).
T
he status describes the condition of the associated measured
value
.
T
he content of the measured value is only valid if the
corresponding status has the value zero
.
I
f there is a status
value unequal zero
,
the status value and the corresponding
value in the measured value
fi
eld must be taken into account in
a detailed failure diagnosis
.
T
he following chart explains the
possible faults
.
F
ormat of the
PC
/
DCS
value
F
loating point of
OPEN MOD
-
BUS
/
TCP SPECIFICATION
8
M
odbus
-
TCP
,
VEGA ASCII
protocol
-
VEGAMET
624
/
625
,
VEGASCAN
693
,
PLICSRADIO
F
unction as
M
odbus
-
TCP
server
30768
-
EN
-
070730
