VEGA VEGADIF 65 Profibus PA - Manual (Page 68)

68
9 Maintenance and fault rectification
VEGADIF 65 • Profibus PA
36129-EN-130417
Error Cause Rectification
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 7)
– 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 – Exchange the instrument or send it
in for repair
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.
9.3 Exchanging the electronics module
In case of a defect, the electronics module can be exchanged against
an identical type by the user. If no electronics module is available on
site, the module can be ordered from the agency serving you.
Error messages via the
display and adjustment
module
Reaction after fault recti-
fication
7) Fault message can also appear if the pressure is higher than the nominal
range.