Yaskawa MP920 Communications Module - Manual (Page 29)

2 Communications Modes
2.2.3 Communications Overview
2-4
2.2.3 Communications Overview
When each station has written transmission data to its own transmission area and has
received the token, the transmission area information and data will be transmitted to all sta-
tions.
When this data is received, all stations will write the reception data to their own I/O regis-
ters, according to the area information.
In this way, the contents of the I/O areas of all stations are periodically refreshed, according
to the token cycle.