4. A2CCPU
--------------------
MELSEC-A
4.2.8
Setting priority
for
ERRORLED Indication
I
Priority of A2C ERROR LED lighting is
indicated
in Table 4.7.
Table
4.7
Error
Indication
Priority
Priority
Error Contents
Error Item
ERR LED
Number
Hi9h
Error which causes the A2CCPU to
stop
unconditionally.
-
1/0
module
verify
error
1
Fuse
blown
error
Lit
Special
module
error
Link
parameter
error
2
Operation
error
CHK instruction execution 3
Annunciator
(F)
turning
ON
4
Flashes
Low
Battery
error
6
Lit
(1)
Changing
priority
(a) ERROR LEO lighting priority can be
changed
from
the
default
set-
ting
for
the
error which permit sequence program operation to be
continued after an occurrence of an error.
Note that
the
priority level of
the
error
which causes A2CCPU to
stop
operation unconditionally cannot be changed.
(b) Error indication priority can be
changed
by
changing
the
required
priority
order
in
09038
and
09039
(LEO
indication
priority
order
storing
registers).
Priority in
09038
and
09039
and
the
error setting items are il-
lustrated in Fig. 4.22.
Priority
in
09038
and
09039
I
09039
09039
b15
to b4
b3tobO
b15tob12b11tob6
b7tob4
b3tobO
b3 to bO
I
L
Error
item
setting
area
L
19nor.~
Default
value
of
09038
and
09039
I
09039
09038
b15
to
b4
b3to
bO
b15to
b12
b11 to b8
b7to
b4
~
6 4 3 2
Fig.
4.22
Error
Priority
In
09038
and
09039
and
Error
Setting
Items
4-35
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