ABB AC500 PLC - 1.7.3.1.9 State LEDs

3
)
With "Module" the following allocation applies dependent of the master:
31 = Module itself (Module error) or Module type (1=AI, 2=DO, 3=AO; channel
error)
4
)
Diagnosis message appears for the whole output group and not per channel.
The message occurs if the output channel is already active.
5
)
Diagnosis message appears per channel. The message occurs if the output
channel is not active.
1.7.3.1.9 State LEDs
The LEDs are located at the front of module. There are 2 different groups:
● The 5 system LEDs (PWR, NET, DC, S-ERR and I/O-Bus) show the operation state of the
module and display possible errors.
● The 27 process LEDs (UP, UP3, inputs, outputs, CH-ERR1 to CH-ERR3) show the process
supply voltage and the states of the inputs and outputs and display possible errors.
Table 134: States of the 5 System LEDs
LED Color Off On Flashing 1x Flash 2x Flash
PWR/RUN Green Error in the
internal
supply
voltage or
process
voltage
missing
Internal
supply
voltage OK
Module is
not config-
ured
-- --
Yellow -- -- -- -- --
NET Green Init Operational Pre-opera-
tional
Safe-opera-
tional
--
Red No error PDI
Watchdog
Timeout
Invalid Con-
figuration
Unsolicited
State
Change
Application
time out
DC *) Green Distributed
Clock not
active
Distributed
Clock active
-- -- --
Red -- -- -- -- --
S-ERR Red No error Internal
error
-- -- --
I/O-Bus Green No expan-
sion mod-
ules con-
nected or
communica-
tion error
--- --- -- --
ETH1 Green No
EtherCAT
connection
Link OK
No data
transfer
Link OK
Data
transfer OK
-- --
Yellow -- -- -- -- --
Device Specifications
Communication Interface Modules (S500) > EtherCAT
2019/04/173ADR010121, 13, en_US850