Electric control system and electric control unit

An electric control system comprising:

• a plurality of electric control devices that are connected each other to perform data communication through a communication line for controlling an operation of an object to be controlled, wherein
• one electric control device among the plurality of electric control devices comprises:
• a recording unit that records data;
• a transmitting unit that transmits data to another electric control device among the plurality of electric control devices;
• a receiving unit that receives data from the another electric control device;
• and
• a determining unit that determines whether the recording unit can record data or not,
• wherein, the recording unit records data determined to be recordable by the determining unit;
• and
• the transmitting unit transmits data determined to be non-recordable by the determining unit.

An electric control device that controls an operation of an object to be controlled, comprising:

• a determining unit that determines whether a recording unit for recording data can record the data or not;
• a record controlling unit that allows to record the data when the determining unit determines the recording unit can record the data;
• and
• an outputting unit that externally outputs the data, when the determining unit determines the recording unit cannot record the data.