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Operation
D397-50-880 Issue C
4.3 Front panel display
Figure 11 - Profibus front panel display
Table 12 - Front panel symbols and their functions
Symbol Name Function
Data exchange Module is in data exchange as defined by the Profibus standard.
Off-line Module is not in data exchange as defined by the Profibus
standard.
Error ON at the same time as Offline LED = Configuration or
parameterisation error.
Flashing at 1 Hz = Invalid address selected.
Power Internal 5 V supply is operating.
Upper address
switch
Sets value of upper nibble of address (Hexadecimal).
Lower address
switch
Sets value of lower nibble of address (Hexadecimal).