4.2 Error Codes

If an ASCII command cannot be processed by the Commander core, the controller will reply with an error code. See below for possible error responses:

Error Code	Description
?Unknown Command: [Command]	The ASCII command is not understood by the Commander core.
?Error Moving	The move command could not be processed. One or more of the required axes may be in error state or in motion.
?Error Alarm	The move command could not be processed. The Alarm signal is in the on state.
?Error +Limit	The move command could not be processed. The + End Limit is in the on state.
?Error -Limit	The move command could not be processed. The - End Limit is in the on state.
?Error ESTOP	The move command could not be processed. The EMG signal is in the on state.
?Error SNL	The move command could not be processed. The StepNLoop control is in error.
?Invalid Index	The Index number is invalid
?Program Error	The command cannot be processed because a standalone program is in error state.
?Sub not Initialized	Call to a subroutine using the GS command is not valid because the specified subroutine has not been defined.
?Buffer Full	Move cannot be added to a buffer register because all registers are full.
?Buffer Disabled	Buffer command is not valid because buffer mode is disabled.
?Buffer Enabled	SSPD command cannot be processed because buffer mode is enabled.
?SSPD Error	SSPD command cannot be processed because the SSPD mode is not defined or is out of range. S-curve should also be disabled.
?Override Failed	Override operation failed