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Programming Example Section 7-4
If errors are displayed, edit the program to correct the errors and check the
program again. Continue checking the program until all errors have been cor-
rected.
Three levels of program checking are available. The desired level must be
designated to indicate the type of errors that are to be detected. The following
table provides the error types, displays, and explanations of all syntax errors.
Check level 0 checks for type A, B, and C errors; check level 1, for type A and
B errors; and check level 2, for type A errors only.
Type Message Meaning and appropriate response
A ????? The program has been damaged, creating a non-existent
function code. Re-enter the program.
CIRCUIT ERR The number of LD instructions (LD or LD NOT) does not
match the number of logic block instructions (OR LD or
AND LD).Check your program.
OPERAND ERR A constant entered for the instruction is not within defined
values. Change the constant so that it lies within the proper
range.
NO END INSTR There is no END(01) in the program. Write END(01) at the
end of the program.
LOCN ERR An instruction is in the wrong place in the program. Check
instruction requirements and correct the program.
JME UNDEFD A JME(04) instruction is missing for a JMP(05) instruction.
Correct the jump number or insert the proper JME(04)
instruction.
DUPL The same jump number or subroutine number has been
used twice. Correct the program so that the same number
is used only once for each.
SBN UNDEFD An SBN(92) has not been programmed with the same
subroutine number as an SBS(91) instruction in the
program. Correct the program.
STEP ERR STEP(08) with a section number and STEP(08) without a
section number have been used incorrectly. Check
STEP(08) programming requirements and correct the
program.
B IL-ILC ERR IL(02) and ILC(03) are not used in pairs. Correct the
program so that each IL(02) has a unique ILC(03).
Although this error message will appear if more than one
IL(02) is used with the same ILC(03), the program will
executed as written. Make sure your program is written as
desired before proceeding.
JMP-JME ERR JMP(04) and JME(05) are not used in pairs. Make sure
your program is written as desired before proceeding.
SBN-RET ERR RET(93) has not been used properly or the relationship
between SBN(92) and RET(93) is not correct. Correct the
program.
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