MACRO is a high bandwidth, non-proprietary fiber optic or wired field bus protocol for machine control networks which is based upon 100BASEFX (FDDI) and 100BASETX (Ethernet) hardware technologies.  
This website is used for the development and distribution of information pertaining to MACRO ( Motion And Control Ring Optical ) fieldbus technology.  Machine integrators, motion controller manufacturers, amplifier manufacturers and I/O device manufacturers may use this forum to seek information about servo motor, relay system, and other device bus equipment interfaces.