Festo control block CPX-CEC
LED
Sequence
Meaning
Error handling
ERROR
(PLC
runtime
error)
Lights up
red
PLC program
error
Error number:
CPX error
•
Read out error code via
handheld or Codesys
Does not
light up
No error
–
TP
(Ethernet
connection:
Link/Traffic)
Lights up
green
Ethernet
connection OK
–
Flashes
green
Data transfer
active (LED
flashes at
irregular
intervals)
–
Does not
light up
Ethernet
connection to
parameterisation
PC not OK
•
Check connection
•
Check IP address
PS (power
system)
Lights up
green
No error.
Operating
voltage/sensor
supply present
–
Flashes
green,
quickly
Operating
voltage/sensor
supply outside
the tolerance
range
•
Eliminate undervoltage
Flashes
green,
slowly
Internal fuse for
the operating
voltage/sensor
supply has
blown.
•
Eliminate short
circuit/overload on module
side.
•
Depends on the
parameterisation of the
module (module
parameter):
– The sensor supply voltage
will be switched on again
automatically when the
short circuit has been
eliminated (default)
– Power must be turned off
and restored
Does not
light up
No operating
voltage/sensor
supply present
•
Check the operating voltage
connection of the
electronics
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