Samson TROVIS I/O Quick Manual page 13

Table 2: Meaning of the LEDs
LED name LED state
ON
OFF
Power (green) Blinks 1s/1s
Blinks quickly
Blinks very quickly
Blinking
Error (red)
OFF
Connect First ON, then
(green) blinking
Connect (blue) ON
RS485 Blinking
ON
UP, RK (green)
OFF
ON
BE (green)
Off
KA 5500-Z EN
Meaning
Device is switched on
Device is switched off
Boot loader: waiting for update
Boot loader: communication during update
Boot loader: firmware programming
Communication error RS-485
No error
Connection over the device bus is established
Device is connected to voltage supply and starts
One green and one red LED to indicate communication on
the interface. The red LED indicates data are being sent by
the TROVIS I/O module and the green LED indicates that
data are being received.
Relay contacts (BO) in closed state
Relay contacts (BO) in open state
External contact in closed state
External contact in open state
Indicator
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