Vega VEGAMET 624, Supplementary Instructions Manual

Page: 5 / 40

R egister address in
M odicon
T emporary memory of VEGASCAN (
1
word =
2 byte )
30012 PC / DCS
output
6 : S
tatus
… …
30057
PC / DCS output
29
: M easured value
30058
PC / DCS output
29
: S tatus
30059 PC / DCS output 30 : M easured value
30060 PC / DCS output 30 : S tatus
A a an alternative , register address
40001
is also available as
start address ( function code
03
).
T he actual measured values are transmitted as signed data
comprising two octets . T his means that the value range
encompasses max . +
32768
to -
32767
. I n addition to the
measured value , the status of the measured value is delivered
in a second register word .
E xample of the data of a PC / DCS output
M easured value S tatus
R egister addr . 30001 R egister addr . 30002
H igh - B yte / L ow - B yte H igh - B yte / L ow - B yte
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 .
S
tatus
M
easured val
-
ue
M
eaning
0 x 00 0 x XXXX V alid measured value
0
x
XX 0
x
8000 A
n error number is transmitted in the status
corresponding to the error codes E xx ( e . g . 29 =
E
29
= S imulation ).
0
x XX
0
x
00
XX A n error number is transmitted in the status and
in the measured value which corresponds to the
error codes
E xx . M ust be con fi gured via DTM .
F ormat of the PC / DCS value
M odbus - TCP , VEGA ASCII protocol - VEGAMET 624 / 625 , VEGASCAN 693 , PLICSRADIO 5
F unction as M odbus - TCP server
30768
-
EN
-
070730