VEGA VEGAFLEX 66 (-110…+400°C) Profibus PA - Manual (Page 40)

? Wrong presentation of the measured value in Simatic S5
l
Simatic S5 cannot interpret the number format IEEE of
the measured value
à Insert converting component from Siemens
? In Simatic S7 the measured value is always presented as 0
l
Only four bytes are consistently loaded in the PLC
à 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
l
The menu item "Display - Display value" is not set to
"PA
-Out"
à Check values and correct, if necessary
? No connection between PLC and PA network
l
Incorrect adjustment of the bus parameter and the
segment coupler-dependent baud rate
à Check data and correct, if necessary
? Instrument does not appear during connection setup
l
Profibus DP cable pole-reversed
à Check cable and correct, if necessary
l
Incorrect termination
à Check termination at the beginning and end points of
the bus and terminate, if necessary, according to the
specification
l
Instrument not connected to the segment, double
assignment of an address
à 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
à Sensor does not find an echo, e.g. due to faulty
installation or wrong parameter adjustment
à Wrong sensor length entered
Fault messages via the
indicating/adjustment
module
40 VEGAFLEX 66 • Profibus PA
8 Maintenance and fault rectification
32764
-EN
-080716