VEGA VEGASON 66 Profibus PA - Manual (Page 42)

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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 SFC14 to load 5 bytes
consistently
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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
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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
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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.
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E013
l no measured value available
à sensor in boot phase
à sensor does not find an echo, e.g. because of faulty
installation or incorrect parameter adjustment
Fault messages via the indi-
cating/adjustment module
Maintenance and fault rectification
42 VEGASON 66 - Profibus PA
28789
-EN
-060731