The E-SX bus evolved from a system bus, SX bus, has been released.
4,096 words of direct connection I/O capacity, or 8 times the previous capacity; 2,048 words/ms of refresh performance, or 16 times the previous performance; and 100 Mbps/100 m of transmission rate and station-to-station distance 4 times the previous values allow application to further complicated and large-scale devices and facilities

I/O refresh up to 0.25 ms is realized by increasing command process speed and innovative evolution in bus control method. The high-speed control conventionally achieved only with the microcomputer board is also enabled. Moreover, the data memory capacity is expanded. This allows the alarm and history information to be recorded, promoting application to the production monitoring system.