Technical Manual TNC 360 - heidenhain - DR. JOHANNES ...

20 Logic Assign missing (a Word instruction has been programmed, although the previous Logic
gating was not closed with an Assign)
21 Word Accumulator not loaded (a Word Assign or gating has been programmed, although the
Word Accumulator does not contain a definite value).
22 Logic Accumulator not loaded (a Logic Assign has been programmed, although the Logic
Accumulator does not contain a definite value).
23 Accumulators not loaded on "open parentheses" (an A[, AN[, O[, ON[, or XON[ command has
been programmed, although neither the Word nor the Logic Accumulator has been gated or
loaded).
24 Incorrect type of the parentheses result (a different type has been calculated in the
parentheses from that which was defined at the "open parentheses" command, i.e. Logic
instead of Word or vice versa).
25 Conditional jump with incorrect Logic Accumulator (a conditional jump has been programmed,
although the Logic Accumulator does not contain a definite value).
26 Empty CASE instruction.
27 "END CASE" missing.
2.7.3 Run time errors
These errors only appear when the PLC program is executed. A flashing error message "ERROR IN
PLC PROGRAM NR" is displayed. After switching the control off and on again, the Editor can be
accessed by using the code number. The message ”INPUT ERROR” is then displayed and the
Editor stands at the erroneous line or, if the program run time has been exceeded, at the jump
instruction which was last processed.
50 Excessive nesting (too many Modules nested inside one another).
51 STACK underflow (an attempt to acquire data from the STACK, although it was empty).
52 STACK overflow (an attempt to load too much data onto the STACK).
53 Time out (the permissible program run time has been exceeded by more than twice. Check
the subprogram structure).
54 CASE Arguments are larger than the number of entries in the table.
8/95 TNC 360 2 Program Creation 7-25