S codes Index or cheat sheet

carleastwood · March 14, 2025, 7:31pm

Is there any way or site to get aGRBL $ code index? so I can tell what the console is telling me and maybe adjust the settings to fix the errors

Rick · March 14, 2025, 7:38pm

Resources worth review.

github.com/gnea/grbl

doc/csv/setting_codes_en_US.csv

master

"$-Code"," Setting"," Units"," Setting Description"
"0","Step pulse time","microseconds","Sets time length per step. Minimum 3usec."
"1","Step idle delay","milliseconds","Sets a short hold delay when stopping to let dynamics settle before disabling steppers. Value 255 keeps motors enabled with no delay."
"2","Step pulse invert","mask","Inverts the step signal. Set axis bit to invert (00000ZYX)."
"3","Step direction invert","mask","Inverts the direction signal. Set axis bit to invert (00000ZYX)."
"4","Invert step enable pin","boolean","Inverts the stepper driver enable pin signal."
"5","Invert limit pins","boolean","Inverts the all of the limit input pins."
"6","Invert probe pin","boolean","Inverts the probe input pin signal."
"10","Status report options","mask","Alters data included in status reports."
"11","Junction deviation","millimeters","Sets how fast Grbl travels through consecutive motions. Lower value slows it down."
"12","Arc tolerance","millimeters","Sets the G2 and G3 arc tracing accuracy based on radial error. Beware: A very small value may effect performance."
"13","Report in inches","boolean","Enables inch units when returning any position and rate value that is not a settings value."
"20","Soft limits enable","boolean","Enables soft limits checks within machine travel and sets alarm when exceeded. Requires homing."
"21","Hard limits enable","boolean","Enables hard limits. Immediately halts motion and throws an alarm when switch is triggered."
"22","Homing cycle enable","boolean","Enables homing cycle. Requires limit switches on all axes."
"23","Homing direction invert","mask","Homing searches for a switch in the positive direction. Set axis bit (00000ZYX) to search in negative direction."
"24","Homing locate feed rate","mm/min","Feed rate to slowly engage limit switch to determine its location accurately."
"25","Homing search seek rate","mm/min","Seek rate to quickly find the limit switch before the slower locating phase."
"26","Homing switch debounce delay","milliseconds","Sets a short delay between phases of homing cycle to let a switch debounce."
"27","Homing switch pull-off distance","millimeters","Retract distance after triggering switch to disengage it. Homing will fail if switch isn't cleared."

This file has been truncated. show original

github.com/gnea/grbl

doc/csv/error_codes_en_US.csv

master

"Error Code in v1.1+","Error Message in v1.0-","Error Description"
"1","Expected command letter","G-code words consist of a letter and a value. Letter was not found."
"2","Bad number format","Missing the expected G-code word value or numeric value format is not valid."
"3","Invalid statement","Grbl '$' system command was not recognized or supported."
"4","Value < 0","Negative value received for an expected positive value."
"5","Setting disabled","Homing cycle failure. Homing is not enabled via settings."
"6","Value < 3 usec","Minimum step pulse time must be greater than 3usec."
"7","EEPROM read fail. Using defaults","An EEPROM read failed. Auto-restoring affected EEPROM to default values."
"8","Not idle","Grbl '$' command cannot be used unless Grbl is IDLE. Ensures smooth operation during a job."
"9","G-code lock","G-code commands are locked out during alarm or jog state."
"10","Homing not enabled","Soft limits cannot be enabled without homing also enabled."
"11","Line overflow","Max characters per line exceeded. Received command line was not executed."
"12","Step rate > 30kHz","Grbl '$' setting value cause the step rate to exceed the maximum supported."
"13","Check Door","Safety door detected as opened and door state initiated."
"14","Line length exceeded","Build info or startup line exceeded EEPROM line length limit. Line not stored."
"15","Travel exceeded","Jog target exceeds machine travel. Jog command has been ignored."
"16","Invalid jog command","Jog command has no '=' or contains prohibited g-code."
"17","Setting disabled","Laser mode requires PWM output."
"20","Unsupported command","Unsupported or invalid g-code command found in block."
"21","Modal group violation","More than one g-code command from same modal group found in block."

This file has been truncated. show original

github.com/gnea/grbl

doc/csv/alarm_codes_en_US.csv

master

"Alarm Code in v1.1+"," Alarm Message in v1.0-"," Alarm Description"
"1","Hard limit","Hard limit has been triggered. Machine position is likely lost due to sudden halt. Re-homing is highly recommended."
"2","Soft limit","Soft limit alarm. G-code motion target exceeds machine travel. Machine position retained. Alarm may be safely unlocked."
"3","Abort during cycle","Reset while in motion. Machine position is likely lost due to sudden halt. Re-homing is highly recommended."
"4","Probe fail","Probe fail. Probe is not in the expected initial state before starting probe cycle when G38.2 and G38.3 is not triggered and G38.4 and G38.5 is triggered."
"5","Probe fail","Probe fail. Probe did not contact the workpiece within the programmed travel for G38.2 and G38.4."
"6","Homing fail","Homing fail. The active homing cycle was reset."
"7","Homing fail","Homing fail. Safety door was opened during homing cycle."
"8","Homing fail","Homing fail. Pull off travel failed to clear limit switch. Try increasing pull-off setting or check wiring."
"9","Homing fail","Homing fail. Could not find limit switch within search distances. Try increasing max travel, decreasing pull-off distance, or check wiring."
"10","Homing fail","Homing fail. Second dual axis limit switch failed to trigger within configured search distance after first. Try increasing trigger fail distance or check wiring."

carleastwood · March 14, 2025, 9:11pm

Rick:

"Alarm Code in v1.1+"," Alarm Message in v1.0-"," Alarm Description"
"1","Hard limit","Hard limit has been triggered. Machine position is likely lost due to sudden halt. Re-homing is highly recommended."
"2","Soft limit","Soft limit alarm. G-code motion target exceeds machine travel. Machine position retained. Alarm may be safely unlocked."
"3","Abort during cycle","Reset while in motion. Machine position is likely lost due to sudden halt. Re-homing is highly recommended."
"4","Probe fail","Probe fail. Probe is not in the expected initial state before starting probe cycle when G38.2 and G38.3 is not triggered and G38.4 and G38.5 is triggered."
"5","Probe fail","Probe fail. Probe did not contact the workpiece within the programmed travel for G38.2 and G38.4."
"6","Homing fail","Homing fail. The active homing cycle was reset."
"7","Homing fail","Homing fail. Safety door was opened during homing cycle."
"8","Homing fail","Homing fail. Pull off travel failed to clear limit switch. Try increasing pull-off setting or check wiring."
"9","Homing fail","Homing fail. Could not find limit switch within search distances. Try increasing max travel, decreasing pull-off distance, or check wiring."
"10","Homing fail","Homing fail. Second dual axis limit switch failed to trigger within configured search distance after first. Try increasing trigger fail distance or check wiring."

Thank You Sir

MikeyH · March 15, 2025, 2:19am

Here is another All-in-One listing…

GRBL v1.1

GRBL v2.0

system · April 14, 2025, 2:20am

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