Status Codes

This page documents the status codes returned in the response footer. If you are looking for the machine state variable stat go here instead: stat

Status Codes

The status code reports how a command was processed. It is the second number in the footer array for a response:

{"r":{"xjm":5000000000.000},"f":[3,0,6]}

Zero (0, STAT_OK) means the command was processed. Anything else is an error. The following status codes are supported as of firmware build 100.xx. See error.h for the source:

// OS, communications and low-level status (must align with XIO_xxxx codes in xio.h)
#define STAT_OK 0                       // function completed OK
#define STAT_ERROR 1                    // generic error return (EPERM)
#define STAT_EAGAIN 2                   // function would block here (call again)
#define STAT_NOOP 3                     // function had no-operation
#define STAT_COMPLETE 4                 // operation is complete
#define STAT_SHUTDOWN 5                 // operation was shutdown (terminated gracefully)
#define STAT_PANIC 6                    // system panic (not graceful)
#define STAT_EOL 7                      // function returned end-of-line
#define STAT_EOF 8                      // function returned end-of-file
#define STAT_FILE_NOT_OPEN 9
#define STAT_FILE_SIZE_EXCEEDED 10
#define STAT_NO_SUCH_DEVICE 11
#define STAT_BUFFER_EMPTY 12
#define STAT_BUFFER_FULL 13
#define STAT_BUFFER_FULL_FATAL 14
#define STAT_INITIALIZING 15            // initializing - not ready for use
#define STAT_ENTERING_BOOT_LOADER 16    // this code actually emitted from boot loader, not g2
#define STAT_FUNCTION_IS_STUBBED 17
#define STAT_ALARM 18                   // system alarm triggered
#define STAT_NO_DISPLAY 19              // suppress results display - presumably handled upstream

// Internal errors and startup messages
#define STAT_INTERNAL_ERROR 20          // unrecoverable internal error
#define STAT_INTERNAL_RANGE_ERROR 21    // number range other than by user input
#define STAT_FLOATING_POINT_ERROR 22    // number conversion error
#define STAT_DIVIDE_BY_ZERO 23
#define STAT_INVALID_ADDRESS 24
#define STAT_READ_ONLY_ADDRESS 25
#define STAT_INIT_FAILURE 26
#define STAT_ERROR_27 27                // was ALARMED in 0.97
#define STAT_FAILED_TO_GET_PLANNER_BUFFER 28
#define STAT_GENERIC_EXCEPTION_REPORT 29 // used for test

#define STAT_PREP_LINE_MOVE_TIME_IS_INFINITE 30
#define STAT_PREP_LINE_MOVE_TIME_IS_NAN 31
#define STAT_FLOAT_IS_INFINITE 32
#define STAT_FLOAT_IS_NAN 33
#define STAT_PERSISTENCE_ERROR 34
#define STAT_BAD_STATUS_REPORT_SETTING 35
#define STAT_FAILED_GET_PLANNER_BUFFER 36

// Assertion failures - build down from 99 until they meet the system internal errors
#define STAT_BUFFER_FREE_ASSERTION_FAILURE 88
#define STAT_STATE_MANAGEMENT_ASSERTION_FAILURE 89
#define STAT_CONFIG_ASSERTION_FAILURE 90
#define STAT_XIO_ASSERTION_FAILURE 91
#define STAT_ENCODER_ASSERTION_FAILURE 92
#define STAT_STEPPER_ASSERTION_FAILURE 93
#define STAT_PLANNER_ASSERTION_FAILURE 94
#define STAT_CANONICAL_MACHINE_ASSERTION_FAILURE 95
#define STAT_CONTROLLER_ASSERTION_FAILURE 96
#define STAT_STACK_OVERFLOW 97
#define STAT_MEMORY_FAULT 98                    // generic memory corruption detected by magic numbers
#define STAT_GENERIC_ASSERTION_FAILURE 99       // generic assertion failure - unclassified

// Application and data input errors

// Generic data input errors
#define STAT_UNRECOGNIZED_NAME 100              // parser didn't recognize the name
#define STAT_INVALID_OR_MALFORMED_COMMAND 101   // malformed line to parser
#define STAT_BAD_NUMBER_FORMAT 102              // number format error
#define STAT_UNSUPPORTED_TYPE 103               // an otherwise valid JSON type is not supported
#define STAT_PARAMETER_IS_READ_ONLY 104         // input error: parameter cannot be set
#define STAT_PARAMETER_CANNOT_BE_READ 105       // input error: parameter cannot be returned
#define STAT_COMMAND_NOT_ACCEPTED 106           // input error: command cannot be accepted at this time
#define STAT_INPUT_EXCEEDS_MAX_LENGTH 107       // input error: input string is too long
#define STAT_INPUT_LESS_THAN_MIN_VALUE 108      // input error: value is under minimum
#define STAT_INPUT_EXCEEDS_MAX_VALUE 109        // input error: value is over maximum
#define STAT_INPUT_VALUE_RANGE_ERROR 110        // input error: value is out-of-range

#define STAT_JSON_SYNTAX_ERROR 111              // JSON input string is not well formed
#define STAT_JSON_TOO_MANY_PAIRS 112            // JSON input string has too many JSON pairs
#define STAT_JSON_OUTPUT_TOO_LONG 113           // JSON output exceeds buffer size
#define STAT_NESTED_TXT_CONTAINER 114           // JSON 'txt' fields cannot be nested
#define STAT_MAX_DEPTH_EXCEEDED 115             // JSON exceeded maximum nesting depth
#define STAT_VALUE_TYPE_ERROR 116               // JSON value does not agree with variable type

// Gcode errors and warnings (Most originate from NIST - by concept, not number)
#define STAT_GCODE_GENERIC_INPUT_ERROR 130      // generic error for gcode input
#define STAT_GCODE_COMMAND_UNSUPPORTED 131      // G command is not supported
#define STAT_MCODE_COMMAND_UNSUPPORTED 132      // M command is not supported
#define STAT_GCODE_MODAL_GROUP_VIOLATION 133    // gcode modal group error
#define STAT_GCODE_AXIS_IS_MISSING 134          // command requires at least one axis present
#define STAT_GCODE_AXIS_CANNOT_BE_PRESENT 135   // error if G80 has axis words
#define STAT_GCODE_AXIS_IS_INVALID 136          // an axis is specified that is illegal for the command
#define STAT_GCODE_AXIS_IS_NOT_CONFIGURED 137   // WARNING: attempt to program an axis that is disabled
#define STAT_GCODE_AXIS_NUMBER_IS_MISSING 138   // axis word is missing its value
#define STAT_GCODE_AXIS_NUMBER_IS_INVALID 139   // axis word value is illegal

#define STAT_GCODE_ACTIVE_PLANE_IS_MISSING 140  // active plane is not programmed
#define STAT_GCODE_ACTIVE_PLANE_IS_INVALID 141  // active plane selected is not valid for this command
#define STAT_GCODE_FEEDRATE_NOT_SPECIFIED 142   // move has no feedrate
#define STAT_GCODE_INVERSE_TIME_MODE_CANNOT_BE_USED 143  // G38.2 and some canned cycles cannot accept inverse time mode
#define STAT_GCODE_ROTARY_AXIS_CANNOT_BE_USED 144   // G38.2 and some other commands cannot have rotary axes
#define STAT_GCODE_G53_WITHOUT_G0_OR_G1 145         // G0 or G1 must be active for G53
#define STAT_REQUESTED_VELOCITY_EXCEEDS_LIMITS 146
#define STAT_CUTTER_COMPENSATION_CANNOT_BE_ENABLED 147
#define STAT_PROGRAMMED_POINT_SAME_AS_CURRENT_POINT 148
#define STAT_SPINDLE_SPEED_BELOW_MINIMUM 149

#define STAT_SPINDLE_SPEED_MAX_EXCEEDED 150
#define STAT_SPINDLE_MUST_BE_OFF 151
#define STAT_SPINDLE_MUST_BE_TURNING 152            // some canned cycles require spindle to be turning when called
#define STAT_ARC_ERROR_RESERVED 153                 // RESERVED
#define STAT_ARC_HAS_IMPOSSIBLE_CENTER_POINT 154    // trap (.05 inch/.5 mm) OR ((.0005 inch/.005mm) AND .1% of radius condition
#define STAT_ARC_SPECIFICATION_ERROR 155            // generic arc specification error
#define STAT_ARC_AXIS_MISSING_FOR_SELECTED_PLANE 156  // arc is missing axis (axes) required by selected plane
#define STAT_ARC_OFFSETS_MISSING_FOR_SELECTED_PLANE 157 // one or both offsets are not specified
#define STAT_ARC_RADIUS_OUT_OF_TOLERANCE 158        // WARNING - radius arc is too large - accuracy in question
#define STAT_ARC_ENDPOINT_IS_STARTING_POINT 159

#define STAT_P_WORD_IS_MISSING 160                  // P must be present for dwells and other functions
#define STAT_P_WORD_IS_INVALID 161                  // generic P value error
#define STAT_P_WORD_IS_ZERO 162
#define STAT_P_WORD_IS_NEGATIVE 163                 // dwells require positive P values
#define STAT_P_WORD_IS_NOT_AN_INTEGER 164           // G10s and other commands require integer P numbers
#define STAT_P_WORD_IS_NOT_VALID_TOOL_NUMBER 165
#define STAT_D_WORD_IS_MISSING 166
#define STAT_D_WORD_IS_INVALID 167
#define STAT_E_WORD_IS_MISSING 168
#define STAT_E_WORD_IS_INVALID 169

#define STAT_H_WORD_IS_MISSING 170
#define STAT_H_WORD_IS_INVALID 171
#define STAT_L_WORD_IS_MISSING 172
#define STAT_L_WORD_IS_INVALID 173
#define STAT_Q_WORD_IS_MISSING 174
#define STAT_Q_WORD_IS_INVALID 175
#define STAT_R_WORD_IS_MISSING 176
#define STAT_R_WORD_IS_INVALID 177
#define STAT_S_WORD_IS_MISSING 178
#define STAT_S_WORD_IS_INVALID 179

#define STAT_T_WORD_IS_MISSING 180
#define STAT_T_WORD_IS_INVALID 181

// g2core errors and warnings
#define STAT_GENERIC_ERROR 200
#define STAT_MINIMUM_LENGTH_MOVE 201            // move is less than minimum length
#define STAT_MINIMUM_TIME_MOVE 202              // move is less than minimum time
#define STAT_LIMIT_SWITCH_HIT 203               // a limit switch was hit causing shutdown
#define STAT_COMMAND_REJECTED_BY_ALARM 204      // command was not processed because machine is alarmed
#define STAT_COMMAND_REJECTED_BY_SHUTDOWN 205   // command was not processed because machine is shutdown
#define STAT_COMMAND_REJECTED_BY_PANIC 206      // command was not processed because machine is paniced
#define STAT_KILL_JOB 207                       // ^d received (job kill)
#define STAT_NO_GPIO 208                        // no GPIO exists for this value

#define STAT_TEMPERATURE_CONTROL_ERROR 209      // temperature controls err'd out

#define STAT_SOFT_LIMIT_EXCEEDED 220            // soft limit error - axis unspecified
#define STAT_SOFT_LIMIT_EXCEEDED_XMIN 221       // soft limit error - X minimum
#define STAT_SOFT_LIMIT_EXCEEDED_XMAX 222       // soft limit error - X maximum
#define STAT_SOFT_LIMIT_EXCEEDED_YMIN 223       // soft limit error - Y minimum
#define STAT_SOFT_LIMIT_EXCEEDED_YMAX 224       // soft limit error - Y maximum
#define STAT_SOFT_LIMIT_EXCEEDED_ZMIN 225       // soft limit error - Z minimum
#define STAT_SOFT_LIMIT_EXCEEDED_ZMAX 226       // soft limit error - Z maximum
#define STAT_SOFT_LIMIT_EXCEEDED_AMIN 227       // soft limit error - A minimum
#define STAT_SOFT_LIMIT_EXCEEDED_AMAX 228       // soft limit error - A maximum
#define STAT_SOFT_LIMIT_EXCEEDED_BMIN 229       // soft limit error - B minimum

#define STAT_SOFT_LIMIT_EXCEEDED_BMAX 220       // soft limit error - B maximum
#define STAT_SOFT_LIMIT_EXCEEDED_CMIN 231       // soft limit error - C minimum
#define STAT_SOFT_LIMIT_EXCEEDED_CMAX 232       // soft limit error - C maximum
#define STAT_SOFT_LIMIT_EXCEEDED_ARC 233        // soft limit err on arc

#define STAT_HOMING_CYCLE_FAILED 240            // homing cycle did not complete
#define STAT_HOMING_ERROR_BAD_OR_NO_AXIS 241
#define STAT_HOMING_ERROR_ZERO_SEARCH_VELOCITY 242
#define STAT_HOMING_ERROR_ZERO_LATCH_VELOCITY 243
#define STAT_HOMING_ERROR_TRAVEL_MIN_MAX_IDENTICAL 244
#define STAT_HOMING_ERROR_NEGATIVE_LATCH_BACKOFF 245
#define STAT_HOMING_ERROR_HOMING_INPUT_MISCONFIGURED 246
#define STAT_HOMING_ERROR_MUST_CLEAR_SWITCHES_BEFORE_HOMING 247
#define STAT_ERROR_248 248
#define STAT_ERROR_249 249

#define STAT_PROBE_CYCLE_FAILED 250             // probing cycle did not complete
#define STAT_PROBE_TRAVEL_TOO_SMALL 251
#define STAT_NO_PROBE_SWITCH_CONFIGURED 252
#define STAT_MULTIPLE_PROBE_SWITCHES_CONFIGURED 253
#define STAT_PROBE_SWITCH_ON_ABC_AXIS 254

#define STAT_ERROR_255 255