Tormach PCNC 440 - Built-in M-codes

Chapter 7
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UM10372_PCNC440_Manual_0221A
PROgRAMMiNg
7.5 Built-in M-codes
M-codes interpreted directly by the operang system are detailed in the table below:
M-code Meaning
M00 Program stop
M01 Oponal program stop
M02 Program end
M03 Rotate spindle clockwise
M05 Stop spindle rotaon
M07 or M08 Coolant on
M09 All coolant o
M30 Program end and rewind
M48 Enable speed and feed override
M49 Disable speed and feed override
M98 Call subroune
M99 Return from subroune/repeat
M100 to M199 Operator dened M-codes
7.5.1 Program Stop and Program End – M00, M01, M02, and M30
To stop a running program temporarily, regardless of the oponal stop switch seng, program: M00
To stop a running program temporarily, but only if the oponal stop switch is on, program: M01
It is OK to program M00 and M01 in MDI mode, but the eect probably won’t be noceable because
normal behavior in MDI mode is to stop aer each line of input.
If a program is stopped by an M00, M01, pressing the Cycle Start buon restarts the program at the
following line of the G-code program.
To end a program, program: M02 or M30. M02 leaves the next line to be executed as the M02 line.
M30 rewinds the G-code le. These commands can have the following eects depending on the
opons chosen on the Congure>Logic dialog:
• Axis osets are set to zero (like G92.2) and origin osets are set to the default (like G54)
• Selected plane is set to XY (like G17)
• Distance mode is set to absolute (like G90)
• Feed rate mode is set to units per minute mode (like G94)
• Feed and speed overrides are set to on (like M48)
• Cuer Compensaon is turned o (like G40)
• The spindle is stopped (like M05)
• The current moon mode is set to G01 (like G01)