
5. LADDER DIAGRAM EDITOR
FUNCTION (PMC–SB7)
B–61863E/15
FS16i/18i/21i/0i–B PMC–SA1/SB7 MANIPULATION
920
Alarm number ContentsFaulty location/corrective action
DUPLICATE DIFU/DIFD NUMBER
(WARNING)
If some of them are unnecessary, re-
move them. If all of them are neces-
sary, assign other number to parame-
ter of them to make them unique. (If
two or more instructions with same pa-
rameter number will never be active
simultaneously at one time, the Ladder
program has a possibility to work cor-
rectly, 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 cor-
rect number not to exceed the maxi-
mum number defined by each PMC
model.
DIFU or DIFD has parameter number
that is out of range.
NO END
NO END1
NO END2
NO END3
Add END, END1, END2 or END3 in
proper position.
END, END1, END2 or END3 is not
found.
DUPLICATE END1
DUPLICATE END2
DUPLICATE END3
Remove extra END1, END2 or END3. Multiple END1, END2 or END3 are
found.
GARBAGE AFTER END
GARBAGE AFTER END2
GARBAGE AFTER END3
Remove unnecessary nets, and move
necessary nets to proper position so
that they will be executed.
There are some nets after END, END2
or END3, which will not be executed.
OVERLAPPED JMP If JMPE is missing, add it in proper
position. If the JMP is unnecessary,
remove it.
There is no JMPE that corresponds to
this JMP.
JMP/JMPE TO BAD COM LEVEL JMP and corresponding JMPE must
have same COM/COME status. Re-
view JMP range and COM range, to
adjust not to overlap with each other: it
is possible that one range includes the
other completely.
JMP and corresponding JMPE have
different COM/COME status.
COME IN JMP COME and corresponding COM must
have same JMP/JMPE status. Review
COM range and JMP range, to adjust
not to overlap with each other: it is
possible that one range includes the
other completely.
COME is found between JMP and
JMPE, and COM and corresponding
COME have different JMP/JMPE sta-
tus.
END IN JMP
END1 IN JMP
END2 IN JMP
END3 IN JMP
If JMPE is missing, add it in proper
position. If JMP is unnecessary, re-
move it.
END,END1,END2, or END3 is found
between JMP and JMPE.
SP/SPE IN JMP If JMPE is missing, add it in proper
position. If the JMP is unnecessary,
remove it.
SP or SPE is found between JMP and
JMPE.