Mitsubishi FX3U SERIES User Manual page 116

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
3
Calculate the number of input/output points.
Calculate the number of input/output points on the whole system.
1. Calculate the number of input/output points of the main unit and extension devices.
Main unit
1-
1
48 points
2. Calculate the number of remote I/O points on the network.
Since this system uses CC-Link, calculate the number of the remote I/O stations.
Input/output on network
Number of CC-Link
remote I/O stations
1 station
FX
3. Calculate the total number of input/output occupied points (number of input/output points).
Total number of input/output points
Number of input/output
occupied points
A
176 points
Total obtained in Step 1
110
Number of input/output points
Total input/output points
of extension devices
2-
1
+
128 points
× 32 points
=
-16CCL-M: up to 7 stations
2N
Input/output on network
B
+
32 points
Total obtained in Step 2
6.9 Example of System Configuration and System Modification
Calculation result
A
=
176 points
Calculation result
B
≤
32 points
Calculation
result
= 208 points
6 Examination of System Configuration
Max. number of
input/output points
OK
≤
256 points
Max. number of
input/output points
OK
224 points
Max. number of
input/output points
OK
≤
384 points