
APPENDIX
B–63525EN/02
A. ALARM LIST
891
Alarm number ContentsFaulty location/corrective action
LBL FOR JMPC IN BAD LEVEL JMPC is used to jump from a subprogram
to level 2. If the JMPC is unnecessary, re-
move it. If another LBL of same L–address
that the JMPC is intended to jump exists in
the subprogram, assign different L–ad-
dress to these two LBLs. If it should be
JMPB or JMP, correct it.
Destination of JMPC is not level 2.
JMPC INTO COM LBL for JMPC must be located out of any
COM and COME pair. If the JMPC is un-
necessary, remove it. If the LBL is located
wrong, move it to correct position. If the L–
address of JMPC is wrong, correct it.
JMPC jumps to LBL between COM and
COME.
JMPE WITHOUT JMP If JMP is missing, add it in proper position.
If the JMPE is unnecessary, remove it.
There is no JMP that corresponds to this
JMPE.
TOO MANY LBL Remove unnecessary LBLs. If this error
still occurs, adjust the construction of pro-
gram to use less LBLs.
There are too many LBLs.
DUPLICATE LBL If some of these LBLs are unnecessary, re-
move them. If all of these LBLs is neces-
sary, assign other L–addresses to them to
make all LBLs unique.
Same L–address is used in plural LBLs.
OVERLAPPED SP If SP is missing, add it in proper position. If
the SPE is unnecessary, remove it.
There is no SP that corresponds to this
SPE.
SPE WITHOUT SP If SP is missing, add it in proper position. If
the SPE is unnecessary, remove it.
There is no SP that corresponds to this
SPE.
END IN SP If SPE is missing, add it in proper position.
If END is in wrong place, move it to proper
position.
END is found between SP and SPE.
DUPLICATE P ADDRESS If some of these SPs are unnecessary, re-
move them. If all of these SPs is neces-
sary, assign other P–addresses to them to
make all SPs unique.
Same P–address is used in plural SPs.
DUPLICATE TMRB NUMBER
(WARNING)
If some of them are unnecessary, remove
them. If all of them are necessary, assign
other number to parameter of them to
make them unique. (If two or more instruc-
tions with same parameter number will
never be active simultaneously at one
time, the Ladder program has a possibility
to work correctly, however, it is recom-
mended from safety and maintenance
points of view, that all these instructions
should have different parameter number
with each other.)
Plural TMRBs have the same number as
their parameter.
(This is warning.)
ILLEGAL TMRB NUMBER If unnecessary, remove it. Assign correct
number not to exceed the maximum num-
ber defined by each PMC model.
TMRB has parameter number that is out
of range.