
B-63945EN/02 APPENDIX A.ALARM LIST
- 691 -
Error messages that may be displayed on the PMC LADDER DIAGRAM
EDITOR screen (when updating)
Alarm number Faulty location/corrective action Contents
OVERLAPPED COM If COME is missing, add it in proper
position. If the COM is unnecessary,
remove it.
There is no COME that corresponds to
this COM.
END IN COM
END1 IN COM
END2 IN COM
If COME is missing, add it in proper
position. If COM is unnecessary, remove
it.
END,END1,END2, or END3 is found
between COM and COME.
JMPE IN COM JMPE and corresponding JMP must have
same COM/COME status. Review JMP
range and COM range, to adjust not to
overlap with each other: it is possible that
one range includes the other completely.
JMPE is found between COM and COME,
and JMP and corresponding JMPE have
different COM/COME status.
SP/SPE IN COM If COME is missing, add it in proper
position. If the COM is unnecessary,
remove it.
SP or SPE is found between COM and
COME.
COME WITHOUT COM If COM is missing, add it in proper
position. If the COME is unnecessary,
remove it.
There is no COM that corresponds to this
COME.
DUPLICATE CTR 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 instructions with same
parameter number will never be active
simultaneously at one time, the Ladder
program has a possibility to work
correctly, however, it is recommended
from safety and maintenance points of
view, that all these instructions should
have different parameter number with
each other.)
Plural CTRs have the same number as
their parameter. (This is warning.)
ILLEGAL CTR NUMBER If unnecessary, remove it. Assign correct
number not to exceed the maximum
number defined by each PMC model.
CTR has parameter number that is out of
range.
DUPLICATE DIFU/DIFD
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 instructions with same
parameter number will never be active
simultaneously at one time, the Ladder
program has a possibility to work
correctly, however, it is recommended
from safety and maintenance points of
view, that all these instructions should
have different parameter number with
each other.)
Plural DIFUs or DIFDs have the same
number as their parameter. (This is
warning.)
ILLEGAL DIFU/DIFD NUMBER If unnecessary, remove it. Assign correct
number not to exceed the maximum
number defined by each PMC model.
DIFU or DIFD has parameter number that
is out of range.