| 摘要 |
PROBLEM TO BE SOLVED: To execute various kinds of processing by a control part on a side of receiving commands while inhibiting complication of a program regulating processing of the control part on the side of receiving commands.SOLUTION: A display control part 400 includes a pseudo control command storage means 420 for storing pseudo control commands. If a command receiving means 440 of the display control part 400 does not receive a command B in a prescribed period of time after receiving a command A transmitted from a subordinate control part 300, execution of processing according to a pseudo control command is determined. If the command receiving means 440 receives a command transmitted from the subordinate control part 300, or if execution of processing according to the pseudo control command is determined, a command execution preparing means 450 executes command execution preparation processing, and a command execution means 460 executes command execution processing for the command B or the pseudo control command after the command execution preparation processing. |
