Mitsubishi Electric CNC 700 Series Connection Manual page 159

8. Connections of I/O Interface
(a) Connection of the remote I/O unit
When the remote I/O unit is connected with a serial link, multiple units can be combined and used in a
range of eight or less total occupied stations. (Refer to the section "8.2 Connecting with Remote I/O
Unit" for details.)
QY231 occupies two stations, so the remote I/O units including this card can be connected to RIO1 of
the control unit in combinations of 6 stations or less.
Connect a terminator R-TM to the CSH41B when it is not connected to any device.
(SW1)
CS1
8.5 Connecting with Expansion I/O Card QY231
J4
CMD81
CFD83
CMD82
Terminator (optional)
(R-TM)
QY231
140
FCUA-R211
To the next remote
I/O unit
Refer to appendix 2.