User`s manual

3 NOMENCLATURE AND SETTING
11
LED display
L.RUN
(Green)
SD
(Red)
RD
(Red)
L.ERR
(Red)
Meaning
Operator
display
Corrective action
Normal but an error is
occurring.
Normal
Remove the influence of
noise.

Normal Normal —

H/W error
CALL or
BUS
Turn the power supply OFF
and then ON again.
 
H/W error
CALL or
BUS
Turn the power supply OFF
and then ON again.

A CRC error occurred,
and the SI-C card
cannot reply.
Normal
Remove the influence of
noise.
 
Local data cannot be
received.
CALL or
BUS
Confirm the PLC program.
 
H/W error
CALL or
BUS
Turn the power supply OFF
and then ON again.
  
H/W error
CALL or
BUS
Turn the power supply OFF
and then ON again.

Polling response is
made but an CRC error
occurred in refresh
receiving.
Normal
Remove the influence of
noise.
 
H/W error
CALL or
BUS
Turn the power supply OFF
and then ON again.
 
H/W error
CALL or
BUS
Turn the power supply OFF
and then ON again.



H/W error
CALL or
BUS
Turn the power supply OFF
and then ON again.
 
A CRC error occurred
in local data.
Normal
Remove the influence of
noise.
 

Local data is not
provided or cannot be
received because of
noise.
CALL or
BUS
Remove the influence of
noise.
  
H/W error
CALL or
BUS
Turn the power supply OFF
and then ON again.
   
Data cannot be
received because of a
disconnection, etc.
CALL or
BUS
Check the wiring.
  *
Baud rate or station
number is not correct.
Normal
Correct the setting and turn
the power supply OFF and
then ON again.
Baud rate or station
number was changed
after the power supply
was turned ON.
Normal
Return the setting to the
former setting.
Turn the power supply OFF
and then ON again.
: Lit :Blinking :Not lit ∗: Lit or Not lit