PfofiBus Gateway
[9] ProfiBus status LEDs
The three LEDs of (LINE-) ON, LINE-OFF and ERR on the front face of the board indicate the node
status and network status. (The remaining LED is not used.)
These LEDs illuminate in one of two colors (red or green), and each LED indicates a different
monitored status, as shown in the table below.
LED name
Color
Indicated status
Description (meaning of indication)
Lit Online
(LINE-) ON
Green
Unlit Not
online
Lit Offline
LINE-OFF
Red
Unlit Not
offline
Blinking at 1-Hz
frequency
Configuration error
Example:
The I/O size determined by
the mode setting switch [3]
does not match the I/O size
set by the configuration tool.
Blinking at 4-Hz
frequency
Communication ASIC initialization error
ERR
Red
Unlit No
error
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