Mitsubishi MELSEC-A A1SCPUC24-R2 User Manual page 113

Table 6.1 Error Code List for A1SCPUC24-R2 (Continue)
Error Code
Error Message
"CHK FORMAT
ERR"
(Checked at
STOP/PAUSE
RUN)
CPU
(D9008) States
14 Stop
Error and Cause
(1) Instructions
(including )
NOP
except LD X , LDI
X , AND X and
ANI X are included
in the
CHK
instruction circuit
block.
(2) Multiple
CHK
instructions are
given.
(3) The number of
contact points in the
instruction
CHK
circuit block
exceeds 150.
(4) There is no
CJ P
circuit block before
the instruction
CHK
circuit block.
(5) The device number
of D1 of the
instruction
CHK D1D2
is different from that
of the contact point
before the
CJ P
instruction.
(6) Pointer P254 is not
given to the head of
the instruction
CHK
circuit block.
P254 CHK D1D2
87
Corrective Action
Check the program in
the instruction
CHK
circuit block according
to items (1) to (6) in the
left column.
Correct problem using
the peripheral and
perform operation
again.