VEGA VEGABAR 55 Profibus PA - climate compensated User Manual
Page 41
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8 Maintenance and fault rectification
VEGABAR 55 • Profibus PA - climate compensated
39442-EN-130321
Error
Cause
Rectification
When an addi-
tional instrument
is connected, the
segment fails.
Max. supply
current of the seg-
ment coupler
exceeded
Measure the current consumption, re-
duce size of segment
Wrong pres-
entation of the
measured value in
Simatic S5
Simatic S5 cannot
interpret the num-
ber format IEEE
of the measured
value
Insert converting component from Sie-
mens
In Simatic S7 the
measured value
is always present-
ed as 0
Only four bytes
are consistently
loaded in the PLC
Use function component SFC 14 to
load 5 bytes consistently
Measured val-
ue on the display
and adjustment
module does not
correspond to the
value in the PLC
The menu item
"Display - Display
value" is not set to
"PA-Out"
Check values and correct, if neces-
sary
No connection be-
tween PLC and
PA network
Incorrect adjust-
ment of the bus
parameter and the
segment coupler-
dependent baud
rate
Check data and correct, if necessary
Instrument does
not appear during
connection setup
Profibus DP cable
pole-reversed
Check cable and correct, if necessary
Incorrect termi-
nation
Check termination at the beginning
and end points of the bus and termi-
nate, 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.
Error code Cause
Rectification
E013
no measured value
available
8)
– Exchange the instrument or send it
in for repair
E017
Adjustment span too
small
– repeat with modified values
E036
no operable sensor
software
– Carry out a software update or send
instrument for repair
E041
Hardware error, elec-
tronics defective
– Exchange the instrument or send it
in for repair
Error messages via the
display and adjustment
module
8)
Fault message can also appear if the pressure is higher than the nominal
range.