Yaskawa YASNAC PC NC PLC Programming Manual - Manual (Page 148)

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YASNAC PCNC PLC Programming Manual Chapter 4: Sequence Control Method
There is no version number character.
Duplicatedly define of label-characters.
JUMP & CALL are used too much.
Duplicatedly use of variable number.
Stop-count of low-speed-scan must be defined.
Symbol-case-number exceed 6500.
SUBP calling sequence error.
Number of SUBP & PUSH is unmatch.
Nest of STR over.
Number of stack instruction by STR is not correct.
SUBP parameter error.
Operand double word data error.
Nesting file open error.
7.5.2 Warning Messages
Output contact of OUT-instruction is defined duplicatedly.
Symbol-case-number exceed 5000.