VEGA VEGAPULS 67 (≥ 2.0.0 - ≤ 3.8) Profibus PA - Manual (Page 46)

Error Cause Removal
When an additio-
nal instrument is
connected, the
segment fails. Max. supply cur-
rent of the seg-
ment coupler
exceeded Measure the current consumption,
reduce size of segment
Wrong presenta-
tion of the measu-
red value in
Simatic S5 Simatic S5 can-
not interpret the
number format
IEEE of the mea-
sured value Insert converting component from
Siemens
In Simatic S7 the
measured value is
always presented
as 0 Only four bytes
are consistently
loaded in the PLC Use function component SFC 14 to
load 5 bytes consistently
Measured value
on the indicating
and adjustment
module does not
correspond to the
value in the PLC The menu item
"
Display - Dis-
play value " is
not set to " PA-
Out "
Check values and correct, if neces-
sary
No connection
between PLC and
PA network Incorrect adjust-
ment of the bus
parameter and
the segment
coupler-depen-
dent baud rate Check data and correct, if necessary
Instrument does
not appear during
connection setup Profibus DP cab-
le pole-reversed Check cable and correct, if necessary
Incorrect termina-
tion Check termination at the beginning
and end points of the bus and termin-
ate, if necessary, according to the
specification
Instrument not
connected to the
segment, double
assignment of an
address Check and correct, if necessary
In Ex applications, the regulations for the wiring of intrinsically safe
circuits must be observed.
? E 013
l no measured value available
à Sensor in boot phase
46 VEGAPULS 67 • Profibus PA
8 Maintenance and fault rectification
32940
-EN
-100514