Without arguments, this command establishes the ARM_COMMAND_RCVD event. Typically it is used to start the SEQUENCER via a single serial command.

ARM X re-initializes the SEQUENCER. This command is useful if the RESET conditions are changed or if the sequencer is hung in a non-IDLE state.

ARM Y=1 turns on or ARM Y=0 turns off the serial log file creation.

ARM Z forces a “sequence stop” condition. The sequencer is re-initialized; all blocks with ALWAYS start conditions are placed in the IDLE state, and all stage motion is halted.