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5
Technical Information
PROFIBUS
The green led shows the interface status according the following
table:
--------------------------------------------- 550 ms period-------------------------------------
1 pulse
2 pulses
Blink fast
Blink slow
Figure 25
1 pulse
ProfiBus link established, controller link NOT established yet
(Controller state machine not in Regular data exchange). This
situation could be normal in the first seconds after the interface
power on (Controller address searching phase) or after the controller
power-on.
2 pulses
ProfiBus link not established yet (ProfiBus state machine not in
Regular data exchange). This failure has priority (in the indication)
over the previous.
Blink fast
Gateway fail (internal check) or wrong address set (address > 0x7D
or address not stable during power-on).
Blink slow
Gateway operating properly.
96/114
Agilent 4UHV Ion Pump Controller User Manual
/
87-900-137-01 (D)
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