Cell control device that controls manufacturing cell in response to command from production management device

A cell control device configured to control a manufacturing cell including a plurality of machines in accordance with a command from a production management device, the cell control device comprising:

• a communication section configured to communicate with the production management device or the plurality of machines;
• a communication controller configured to carry out the communication by the communication section;
• and
• a communication determination section configured to monitor actual communication traffic in the communication section, compare the actual communication traffic with planned communication traffic of the communication planned to be carried out by the communication controller, and determine whether the actual communication traffic is more than the planned communication traffic.