Programming Errors - Omron CPM1 Programming Manual

9-3

Programming Errors

Level A Errors
Level B Errors
These errors in program syntax will be detected when the program is checked
using the Program Check operation.
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 follow-
ing 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.
Message
????? The program has been damaged, creating a non-existent function
code. Re-enter the program.
CIRCUIT The number of logic blocks and logic block instructions does not
ERR agree, i.e., either LD or LD NOT has been used to start a logic
block whose execution condition has not been used by another
instruction, or a logic block instruction has been used that does not
have the required number of logic blocks. Check your program.
OPERAND A constant entered for the instruction is not within defined values.
ERR Change the constant so that it lies within the proper range.
NO END There is no END(01) in the program. Write END(01) at the final
INSTR address in the program.
LOCN ERR An instruction is in the wrong place in the program. Check
instruction requirements and correct the program.
JME A JME(04) instruction is missing for a JMP(05) instruction. Correct
UNDEFD 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 only used once for
each.
SBN The SBS(91) instruction has been programmed for a subroutine
UNDEFD number that does not exist. Correct the subroutine number or
program the required subroutine.
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.
Message
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 be executed as written. Make sure your program is
written as desired before proceeding.
JMP-JME JMP(04) and JME(05) are not used in pairs. Make sure your
ERR program is written as desired before proceeding.
SBN-RET If the displayed address is that of SBN(92), two different
ERR subroutines have been defined with the same subroutine number.
Change one of the subroutine numbers or delete one of the
subroutines. If the displayed address is that of RET(93), RET(93)
has not been used properly. Check requirements for RET(93) and
correct the program.
Meaning and appropriate response
Meaning and appropriate response
Section 9-3