Device Characteristics
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8.7 Module Status
8.7.1 LED Behavior
The following table describes the protocol-independent behavior of the module LEDs.
The description of protocol-specific LED-behavior can be found in the respective sub-chapters.
LED Color Status Meaning Remedy
PWR
TBEN-Lx-16DIP/
TBEN-L4-16DIN
Green off V1 missing or < 18 V DC Check V1
on V1 OK
TBEN-Lx-16DOP/
TBEN-L4-16DON
TBEN-Lx-8DIP-8DOP
TBEN-Lx-16DXP/
TBEN-L4-16DXN
Green off V1 missing or < 18 V DC Check V1
on V1 and V2 OK –
Red on V2 missing or < 18 V DC Check V2
ETHx Green on Active link,100 Mbps
blinking Ethernet Traffic, 100 Mbps
Yellow on Active link,10 Mbps
blinking Ethernet Traffic, 10 Mbps
off No Ethernet link. Check the Ethernet con-
nection.
ERR Green on No diagnostic message available
Red on Diagnostic message pending
BUS Green on Active connection to a master –
blinking Device is ready for operation –
Red on IP address conflict or restore mode
or timeout
control IP addresses in
the network
wait for the device to be
ready for operation
blinking Blink-/wink-command active –
Red/
green
on Autonegotiation and/or waiting for
DHCP-/BootP-address assignment.