PRODUCTION SYSTEM, CELL CONTROLLER, ROBOT CONTROLLER, AND CONTROL METHOD

A production system 1 includes: a command output unit 215 that outputs an execution command of a next task based on a process including a plurality of tasks for a workpiece 9 and progress information of the process; an environment information storage unit 221 that stores environment information; a local controller 100 that controls robots 2B, 2C, and 10 to execute the next task based on an execution command output from the command output unit 215 and environment information in the environment information storage unit 221, and an environment update unit 222 that updates environment information in the environment information storage unit 221 in accordance with the operation of robots 2B, 2C, and 10.