FPΣ User's Manual 
 
5.3 FPΣ Expansion Units 
61 
5.3 FPΣ Expansion Units 
I/O allocation is performed automatically when an expansion unit is added and is determined 
by the installation location. Dedicated expansion units for the FPΣ are connected on the left 
side of the CPU. The I/O numbers are allocated from the unit nearest to the CPU in ascending 
order. 
 
I/O addresses 
[Unit number/Slot number] 
Type of unit 
Number of 
I/O points 
Axis 
1/0  2/1  3/2  4/3 
Input 32 – 
X100–
X11F 
X180– 
X19F 
X260– 
X27F 
X340– 
X35F 
FPΣ I/O expansion unit 
FPG-XY64D2T, 
FPG-XY64D2P 
Output 32  – 
Y100–
Y11F 
Y180– 
Y19F 
Y260– 
Y27F 
Y340– 
Y35F 
Input 16 
X100–
X10F 
X180– 
X18F 
X260– 
X26F 
X340– 
X34F 
FPΣ positioning unit, 
1-axis type 
FPG-PP11, 
FPG-PP12 
Output 16 
1st 
Y100–
Y10F 
Y180– 
Y18F 
Y260– 
Y26F 
Y340– 
Y34F 
1st 
X100–
X10F 
X180– 
X18F 
X260– 
X26F 
X340– 
X34F 
Input 32 
2nd 
X110–
X11F 
X190– 
X19F 
X270– 
X27F 
X350– 
X35F 
1st 
Y100–
Y10F 
Y180– 
Y18F 
Y260– 
Y26F 
Y340– 
Y34F 
FPΣ positioning unit, 
2-axis type  
FPG-PP21, 
FPG-PP22 
Output 32 
2nd 
Y110–
Y11F 
Y190– 
Y19F 
Y270– 
Y27F 
Y350– 
Y35F 
FPΣ memory expansion 
unit 
FPG-EM1 
Input 
(Battery 
error) 
16 – 
X100–
X10F 
X180– 
X18F 
X260– 
X26F 
X340– 
X34F 
Input 128 – 
X100–
X17F 
X180– 
X25F 
X260– 
X33F 
X340– 
X41F 
FPΣ S-Link master unit 
FPG-SL 
Output 128  – 
Y100–
Y17F 
Y180– 
Y25F 
Y260– 
Y33F 
Y340– 
Y41F 
 
 
REFERENCE
 
•  Regarding I/O allocation of the FPΣ Positioning Unit RTEX, please refer to 
the Technical Manual of this unit.