Sewing system, storage medium storing monitoring program, and sewing machine

A sewing machine comprising:

• a needle bar;
• a communication interface configured to communicate with a terminal apparatus;
• a first memory that is a nonvolatile memory;
• a second memory that is a volatile memory;
• and
• a controller configured to perform:
• receiving sewing data transmitted from the terminal apparatus via the communication interface, the sewing data including needle position data indicating needle positions for sewing an embroidery pattern;
• in response to receiving the sewing data, storing the received sewing data in the second memory;
• performing a sewing control operation of driving the needle bar to sew the embroidery pattern based on the sewing data;
• storing a number of sewn stitches in the first memory during execution of the sewing control operation, the number of sewn stitches being a number of stitches that have been sewn based on the sewing data;
• and
• in response to determining that the sewing machine has stopped during execution of the sewing control operation and has restarted and in response to receiving restoration data corresponding to the sewing data from the terminal apparatus via the communication interface, driving the needle bar to resume the sewing control operation based on the restoration data and on the number of sewn stitches stored in the first memory.

A sewing machine comprising:

• a needle bar;
• a volatile memory;
• a nonvolatile memory;
• a communication interface;
• and
• a controller configured to perform:
• receiving sewing data transmitted from a terminal apparatus via the communication interface, the sewing data including needle position data indicating needle positions for sewing an embroidery pattern by the sewing machine;
• in response to receiving the sewing data, storing the sewing data in the volatile memory, and storing first pattern information corresponding to the sewing data in the nonvolatile memory;
• performing a sewing control operation of driving the needle bar to sew the embroidery pattern based on the sewing data;
• when the sewing machine is started, determining whether the sewing machine has stopped during execution of the sewing control operation and has restarted;
• and
• in response to receiving restoration data from the terminal apparatus via the communication interface, driving the needle bar to resume the sewing control operation based on the restoration data.