ROBOT CONTROLLER

PURPOSE:To make work load on an operator sharply reducible by installing a duplicate interspace operation judging means of a first robot and a duplicate interspace operational outputting means, outputting a fact that the first robot is in operations at a duplicate space to a controller of a second robot, respectively. CONSTITUTION:A duplicate space calculating means 53 of a controller 110 in a first robot 101 calculates each duplicate space of working spaces of both first and, second robots on the basis of positional information including the setup and working areas of these first and second robots registered, thereby registering these data in a duplicate space information storage memory 54. In addition, a duplicate space operational judging means 55 checks the presence of operations in the duplicate space of the second robot in the case where the operation of the first robot comes within the duplicate space for program execution, whereby this execution or a machine judgment is carried out. Moreover a duplicate space operational outputting means 56 outputs a fact that the first robot 101 is in operations when it operates in the duplicate space, to a controller of the second robot.