The BREAK Command [MLEPC]

The BREAK command is used to segment large tape files into smaller segments or reels to take in account memory limitation of the CNC controller. This command is valid for all machine types but may not be available for a specific machine.

NOW will break the tape unconditionally at the moment when the post-processor encounters the command.

When the BREAK command with no parameters is encountered, the post-processor checks if the minimum tape footage value or program storage specified in the questionnaire has been reached or exceeded. If the minimum size has not been reached, the BREAK command is ignored.

If the no parameter BREAK command has been coded and the minimum size has been exceeded, the current tape reel or file is concluded and a new one is started. A tape reel is concluded by outputting a length of trailer and trailing man readable if required. A DNC file is concluded by printing a REWIND/STOP symbol. A program summary is generated in the listing file. The new tape reel will start with man readable if required and a length of leader. The processing then continues as though nothing had happened.

If the maximum size has been reached before a valid BREAK command is coded, the default action is to break the tape at the next RAPID motion.

The questionnaire may be used to allow tape breaks at feed motions as well.

The same minimum/maximum tape length rules apply when breaking in feed or RAPID mode. When automatic break is generated under feed mode the RETRCT motion will precede the tape break and the return motion to the current position will follow.