Mitsubishi Electric M70V Series Connection Manual page 160

When connecting to the operation panel I/O unit
Station No. 1, 2, 7, 8 (or 1, 2, 3, 7, 8) are occupied by the operation panel I/O unit. (Station No. 7 and 8 are reserved
for manual pulse generator.)
The maximum numbers of stations and I/O points assigned to remote I/O unit(s) via RIO3 are as follows.
Operation panel I/O unit type
FCU7-DX710
FCU7-DX711
FCU7-DX720/730/721/731
Setting example 1
FCU7-DX710/711
Number of occupied stations: 1
Setting example 2
FCU7-DX710/711
Number of occupied stations: 2
Max. number of stations (RIO3
connection)
4 stations (No. 3 to 6)
4 stations (No. 3 to 6)
3 stations (No. 4 to 6)
FCUA-DX100/101
2
Total number of occupied stations: 1
FCUA-DX110/111
or
FCUA-DX120/121
＋
2
Total number of occupied stations: 4 (Maximum configuration)
M70V Series Connection Manual
4.4 Connection of Remote I/O Unit
Max. number of I/O points
(RIO3 connection)
128 points/128 points
128 points/128 points
96 points/96 points
FCUA-DX110/111
or
FCUA-DX120/121
＋
3
4
2
Remote I/O
Rotary switch
Setting range
2 to 5
2 to 5
3 to 5
5
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