LED display
7-1
7. LED display
Power supply LED display
LED
symbol
Color Name
: Lit/flashing
: Unlit
POWER
Green Power status Lit
Power is ON.
Power is OFF.
DeviceNet side LED display
LED
symbol
Color Name
: Lit/flashing
: Unlit
MS_G
Green Module status Lit
Normally operating
Power is OFF, or check the state of
MS_R as there is an error.
MS_R
Red
Module status Lit
An unrecoverable error has
occurred. Replacement is
necessary.
Power is OFF, or check the state of
MS_G as there is no error.
Flashing The node address while the power
is on is changed.
NS_G
Green Network
status
Lit
Online and normally operating
Power is OFF, or node address
redundancy is being checked by
the master.
Or check the state of NS_R as
there is an error.
Flashing Online but connection is not
established.
NS_R
Red
Network
status
Lit
Node address redundancy, Busoff
detection.
Power is OFF, or check the state of
NS_G as there is no error.
Flashing Communication timeout
ASLINK side LED display
LED
symbol
Color Name
: Lit/flashing
: Unlit
LINK
Green Data link
status
Lit
Data link not possible.
Data link not possible.
Flashing
Data link possible.
SET
Green Address
recognition
status
Lit
Automatic address
recognition is operating.
Normally operating
Flashing
Writing to EEPROM
ALM
Red
Alarm status Lit
DP, DN disconnected. No
slave unit response.
Normally operating
Slow
flashing
(every
second)
Short-circuit between DP-DN.
Quick
flashing
(every 0.2
seconds)
24V DC is not supplied or
voltage is low.