Edwards SCU-750

D397-51-880 Issue E
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OPERATION
4.4 Address set up
The module address can be set from 0 to 125 using the two hexadecimal rotary switches on the front panel. The lower
switch defines the lower half of the address byte (nibble) and the upper switch defines the upper half of the address
byte. Each node on a Profibus network must have a unique address. The address switches will only be read by the
unit at power up. Any change of address setting after power up will be ignored until next power up.
The following table may assist.
Table 6 - 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 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).
Table 7 - Address switch settings
Address in
Decimal
Upper switch
setting
Lower switch
setting
Address in
Decimal
Upper switch
setting
Lower switch
setting
000633F
1016440
2026541
3036642
4046743
5056844
6066945
7077046
8087147