4. Device installation | 4.3 - Hardware construction | 79
4.3.10.1 LEDs
Identif. Description
NS Network status LED
MS Module status LED
grn Green: flashes when
there is data traffic (ac
tivity)
yel Yellow: lights up when
there is an existing con
nection (link)
Network status (NS)
LED status Description Comments
Off Module is offline
– No power
– No IP address
Constant green Module is online One or more connections exist (CIP
class1 or3).
1Hz flashing green Module is online No connection
Constant red Critical connection error Duplicate IP address
1Hz flashing red Connection time limit For one or more connections (CIP
class1 or3)