I/O Allocation 
 
FPΣ User's Manual 
62 
5.4  FP0 Expansion Units 
I/O allocation is performed automatically when an expansion unit is added and is determined 
by the installation location. Expansion units from the FP0 series are connected on the right 
side of the CPU. The I/O numbers are allocated from the unit nearest to the CPU in ascending 
order. 
 
Unit number (installation location) 
Type of unit 
Number 
of I/O 
points 
Channel 
1  2  3 
FP0 I/O expansion unit 
 
FP0-E8X  Input 8  –  X20–X27 X40–X47 X60–X67 
Input 
4 – X20–X23 X40–X43 X60–X63 
FP0-E8R 
Output 
4 – Y20–Y23 Y40–Y43 Y60–Y63 
FP0-E8YR, 
E8YT, E8YP 
Output 8  –  Y20–Y27  Y40–Y47  Y60–Y67 
FP0-E16X 
Input 
16 – X20–X2F X40–X4F X60–X6F 
Input 
8 – X20–X27 X40–X47 X60–X67 
FP0-E16R, 
E16T, E16P 
Output 
8 – Y20–Y27 Y40–Y47 Y60–Y67 
FP0-E16YT, 
E16YP 
Output 16  –  Y20–Y2F  Y40–Y4F  Y60–Y6F 
Input 
16 – X20–X2F X40–X4F X60–X6F 
 
FP0-E32T, 
E32P 
Output 
16 – Y20–Y2F Y40–Y4F Y60–Y6F 
Input 16  0 
WX2 
(X20–X2F) 
WX4 
(X40–X4F) 
WX6 
(X60–X6F) 
Input 16  1 
WX3 
(X30–X3F) 
WX5 
(X50–X5F) 
WX7 
(X70–X7F) 
FP0 analog I/O unit 
FP0-A21 
Output 16  – 
WY2 
(Y20–Y2F) 
WY4 
(Y40–Y4F) 
WY6 
(Y60–Y6F) 
Input  16  0, 2, 4, 6 
WX2 
(X20–X2F) 
WX4 
(X40–X4F) 
WX6 
(X60–X6F) 
FP0 A/D conversion unit
FP0-A80 and 
FP0 thermocouple unit 
FP0-TC4, 
FP0-TC8 
Input  16  1, 3, 5, 7 
WX3 
(X30–X3F) 
WX5 
(X50–X5F) 
WX7 
(X70–X7F) 
Input 16  – 
WX2 
(X20–X2F) 
WX4 
(X40–X4F) 
WX6 
(X60–X6F) 
Output 16  0, 2 
WY2 
(Y20–Y2F) 
WY4 
(Y40–Y4F) 
WY6 
(Y60–Y6F) 
FP0 D/A conversion unit
FP0-A04V, 
FP0-A04I 
Output 16  1, 3 
WY3 
(Y30–Y3F) 
WY5 
(Y50–Y5F) 
WY7 
(Y70–Y7F) 
Input  16  0, 2, 4 
WX2 
(X20–X2F) 
WX4 
(X40–X4F) 
WX6 
(X60–X6F) 
Input  16  1, 3, 5 
WX3 
(X30–X3F) 
WX5 
(X50–X5F) 
WX7 
(X70–X7F) 
FP0 RTD unit 
FP0-RTD6 
Output 16  – 
WY2 
(Y20–Y2F) 
WY4 
(Y40–Y4F) 
WY6 
(Y60–Y6F) 
Input 
32 – X20–X3F X40–X5F X60–X7F 
FP0 I/O link unit 
FP0-IOL 
Output 
32 – Y20–Y3F Y40–Y5F Y60–Y7F