SYSTEM, COMMUNICATION UNIT, EQUIPMENT METHOD FOR GENERATING LOGICAL MAP INFORMATION AND TOOL DEVICE

摘要

PROBLEM TO BE SOLVED: To obtain a system with high data transmission efficiency that can transmit only required data. SOLUTION: This system transmits data among a plurality of equipment (controllers 3 and slaves 2) interconnected by a network 5. Each equipment is provided with a communication section 3c (8), having a communication function that stores logical map information relating data A required for equipment at a data receiver side to data B stored by equipment at a data transmitter side and makes communication of required data according to the logical map information. The transmission efficiency is improved, by having only to transmit the required data in the case of transmitting the data actually by dividing all data stored by each equipment into the data in the unit of required data by each device in advance.