Owner's manual

Run Time Errors
Chapter 12
122
Table 12.A
Possible
Causes of Run T ime Errors
Instruction Cause
Jump Jumping from the main program into the subroutine
area or vice versa.
Jumping backwards.
Omitting the label instruction corresponding to the
jump instruction.
Jumping over a temporary end instruction.
Label Multiple placement of the same label identification
number.
Removing a label instruction but leaving its refer
ence, the jump or jump to subroutine
instructions.
Jump to subroutine To begin your main program.
To jump forward in your main program.
Use in the subroutine area.
Omitting a return instruction.
Omitting a corresponding label instruction.
Jumping over a temporary end instruction.
Return Processor does not find a return instruction from the
subroutine area.
Using a return instruction outside the subroutine
area.
Files AC>PR
Duplicating counter's address.
Manipulating the counter's accumulated value by
means of external programming
equipment or data highway hardware.
Sequencer File address is out of range.
Preset value equals 0.
AC>PR
Block transfer Giving the module address a nonexistent I/O rack
number.
Incorrect block length value.