VEGA VEGAPULS 68 (≥ 2.0.0 - ≤ 3.8) Profibus PA - Manual (Page 50)

? 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
? E 017
l Adjustment span too small
à Carry out a fresh adjustment and increase the distance
between min. and max. adjustment
? E 036
l no operable sensor software
à Carry out a software update or send the instrument for repair
? E 041, E042, E043
l Hardware error, electronics defective
à Exchange instrument or return instrument for repair
Fault messages via the
indicating/adjustment
module
50 VEGAPULS 68 • Profibus PA
8 Maintenance and fault rectification
29263
-EN
-090305