LED display
ASI LED
Fault LED
(green)
(red)
on
off
off
off
flashes
on
on
flashes
on
on
Status LED (green)
on
off
Festo ASI−EVA−4E... 0401b English
Meaning
AS−Interface exists, no fault
No AS−Interface voltage on the bus
AS−Interface address not set (equals zero)
Short circuit/overload at the input
Bus communication failed (watchdog
expired)
Meaning
1−signal at input
0−signal at input
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