Led Diagnostics - WIKA PU-548 Mode D'emploi

7. Virtual COM ports / 8. LED diagnostics
9. The COM port is chosen automatically when starting the software.
→ Only if the right port is chosen, are the connection to the instrument
and starting of the program possible.

8. LED diagnostics

The model PU-548 programming unit is fitted with an LED for clear status
display. Through different light and flashing behaviour, detailed status
diagnostics are enabled.
From PC
LED behaviour
Off On
x
x
WIKA operating instructions programming unit PU-548
LED
Status
Flashing
Current loop not active
Current loop active
x (fast) Data transfer
x (slowly) Connection to the PC and instrument is
ready for operation
to the
temperature transmitter
EN
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