he I/O LINK Interface module (IC693BEM320) provides an interface between a Series 90-30
PLC and a proprietary Fanuc I/O LINK in a Fanuc CNC (Computer Numerical Control), or a
Series 90-70 PLC. This module is configured as a slave device only (see the IC693BEM321 for
master applications). The Fanuc I/O LINK is a serial interface which provides high speed
exchange of data between a master and up to 16 slaves. An example of a Series 90-30 PLC in a
Fanuc I/O LINK system configuration is shown in the following illustration.