B-61813E/03 MAINTENANCE 1. OVERVIEW
1.1 SYSTEM CONFIGURATION
I/O Unit-A is connected to a CNC and cell controller through a high-
speed serial interface, I/O Link.
1) The I/O Link consists of a master and slaves.
Master: Series 0-C, Series 15/16/18/20/21, Series
15i/16i/18i/20i/21i, Power Mate-D/H, Power Mate i-
D/H and F-D Mate
Slave: I/O Unit-A, Power Mate, operator's panel connection
unit, and Series 0-C
2) One I/O Link can connect to up 16 groups of slaves. If the master
is not a CNC, one slave group can contain up to 4 of I/O Unit A (4
base units). If the master is a CNC or Power Mate the number of
units per slave group is limited to within 2.