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3 M Code
NJ/NY-series G code Instructions Reference Manual (O031)
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M Code Descriptions
The M code is information used to interlock with external devices in each process of positioning opera-
tion.
• Specify a number (0 to 191) after M-code.
• M code is independent for each CNC coordinate system.
• Up to eight parameters (VA to VH) can be specified for each M code.
• Auxiliary Function Outputs that have parameters are always executed after completion of movement.
• An Auxiliary Function Output that has parameters waits for completion of auxiliary function (reset
from the sequence control program) in a block with the auxiliary function outputs setting.
• Specify the parameters if you want to make the NC program wait until machine control is completed
by the sequence control program.
• No parameters can be specified for M00, M01, M02, M30 and M99.
• M98 specifies an inherent parameter. Refer to
M98 Subprogram Call on page 3-20 for details.
• A reset from the sequence control program must be commanded for each M code.
• A single auxiliary function output can be commanded to a single block.
Instruction format
M{data}{[VA{data} VB{data} VC{data} VD{data} VE{data} VF{data} VG{data}
VH{data}]}