Yaskawa YASNAC PC NC PLC Programming Manual - Manual (Page 180)

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YASNAC PCNC PLC Programming Manual Chapter 8: Online Editing
ó Check the start instruction.
The NC checks whether any of the instructions indicated below is designated at the
start of a net. If not, the “START INST ERR!” is displayed.
The instructions to be checked are as follows:
CMP, DEC, PUSH, ADR, SET, RET, END, POP, IPSH, NOP, LD, LD-NOT,
TPSH, APSH, SUBP23, IPSHD
ì Check the double-instruction.
The NC checks that no instruction is designated with any of the following instructions.
If designated, the “DOUBLE INST ERR!” is displayed.
The instructions to be checked are as follows:
END, RET, RTH, IPSH, APSH, PUSH, TPSH, ADR, IPSHD
ö Check the single-instruction.
The NC checks whether some instruction is designated with any of the following
instructions. If not designated, the “SINGLE INST ERR!” is displayed.
The instructions to be checked are as follows:
TIM, TMR, INR, DCR, CLR, CMR, ADI, SBI, ANI, ORI, XRI, DEC, COL,
CMP, CPI, MVI, ADD, SUB, ANR, ORR, XRR, CPR, COR, MOV, DST,
DIN, ADC, ADDW, SUBW, MULW, DIVW, INRW, DCRW, CLRW,
CMRW, CORW, CPRW, MVIW, DSTW, MCR, RTI, JMP
ú Check the analysis possibility.
The NC checks if the edited net can be converted into a sequence program.
If conversion is not possible, the “INVALID NET!” is displayed.
÷ Check the sequence program size
The NC checks that a sequence program is within the allowable size.
The size of sequence program differs between J300 and J100.
The maximum size of a PCNC sequence program is 393,216 bytes which are approxi-
mately 24,500 steps (1step = 16bytes). If the size of the sequence exceeds 393,216 bytes
the “SIZE OVER!” is displayed.