289
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
9.11 Assignment of I/O numbers
1
Outline
2
External
Dimensions
3
Generic
Specifications
4
Power Supply
Specifications
5
Input
Specifications
6
Output
Specifications
7
Examples of
Wiring for
Various Uses
8
Terminal Block
9
CC-Link/LT
Master FX
3UC
(LT only)
10
Display module
FX
3UC
(LT only)
9.11.2 Setting the point mode (relationship between I/O numbers, station numbers and
point mode)
1. Assignment of I/O numbers
The I/O number is not affected by the point mode setting.
2. Number of occupied stations
The station number of each remote station changes depending on the point mode selection (4-point mode or
16-point mode).
With up to 64 remote stations, more I/O points are available in 16-point mode since I/O modules with more
than 4 I/O occupy multiple stations in 4-point mode.
1) When there are many remote I/O units with more than 4 points
2) When there are many remote I/O units with 4 points or less
X020 to X023
Input(X)
4 points
Built-in
master
X024 to X033 Y020 toY021 Y022 toY041
X000 to X017
Y000 to Y017
Input(X)
8 points
Output(Y)
2 points
Output(Y)
16 points
In the case of
4-
oint mode
In the case of
16-point mode
X020 to X023 X024 to X033 Y020 toY021 Y022 toY041
Terminating
resistor
Terminating
resistor
Built-in
master
2points 8 points 16 points 16 points
Terminating
resistor
Terminating
resistor
In the case of
16-point mode
In the case of
4-point mode
1
station
1
station
1
station
1
station
1
station
5
stations
12
stations
1
station
1
station
2
stations
4
stations
4
stations
+
+
+
+
+
+
+
+
=
=
4points
4
points
Built-in
master
2
points
16 points
4
points
Terminating
resistor
Terminating
resistor
In the case of
16-point mode
In the case of
4-point mode
1
station
1
station
1
station
1
station
1
station
7
stations
+
+++=
1
station
1
station
++
1
station
1
station
1
station
1
station
4
stations
10
stations
+
+++=
1
station
1
station
++
4
points
4
points
4
points