FX3U Series Programmable Controllers
User’s Manual - Hardware Edition
82
6 Examination of System Configuration
6.3 Number of Input/Output Points and Maximum Number of Input/Output Points
6.3.2 Maximum number of input/output points when CC-Link master is used
1. Calculation of maximum number of input/output points
When CC-Link master block is used, the following maximum number of input/output points can be connected.
*1. When seven 32-point type remote I/O stations are used, the number of CC-Link remote I/O points
reaches the maximum number.
The number of CC-Link points is calculated by the formula "32 points × number of stations" even when
remote I/O stations having less than 32 points are used.
For details, refer to FX
2N-16CCL-M User’s Manual.
2. Procedures for calculating number of input/output points based on example of system
configuration
For the main unit, input/output powered extension units/blocks and CC-Link remote I/O stations, the number
of input/output points and the total number of points are restricted.
≥
Maximum number of
input/output points
384 points
Maximum number
of points
controllable on
system
Number of input/
output points
+
Total number of
input/output points
(A)(B)(C)(D)
Number of input/output occupied
points
(E) units
Number of points occupied by
special function units/blocks
+
CC-Link remote I/O
(F) stations
Total number of points obtained by
formula "number of remote I/O
stations
×
32 points" (The number is
multiplied by 32 points regardless of
the number of remote I/O points.)
For details, refer to Subsection 6.3.1.
(A): Number of input/output points of main unit
(B): Number of input/output points of input/output
powered extension units
(C): Number of input/output points of input/output
extension blocks
(D): Number of remote I/O points of FX
2N
-64CL-M or FX
2N
-
16LNK-M
(E): Number of input/output points occupied by special
function units/blocks
(F): Number of remote I/O stations (units) connected to CC-
Link master
×
8
points
×
32
points
−
−
Special
function unit
−
−
FX
2N
-16CCL-M
Input
extension
block
X000 to X027
Y000 to Y027
Main unit
X030 to X057
Y030 to Y057
Input/output
powered
extension unit
X060 to X077
−
Input
extension
block
8 points
24/24
= 48 points
X100 to X117
−
CC-Link network
Remote I/O
(8 points)
Remote I/O
(16 points)
Remote I/O
(32 points)
Remote I/O
(32 points)
Remote I/O
(32 points)
Number of
remaining points
Number of input/output points (128 points)
0 points
384 points128 224 256160144
32 points
×
5 units = 160 points
Number of
remaining
points
Number of input/output points (excluding remote I/O points on CC-Link) + Number of
input/output occupied points
Up to 256 points
Number of input/output points occupied by special function units/blocks
Number of CC-Link input/output points
Up to 224 points
384 points or less in total
24/24
= 48 points
16/0
= 16 points
16/0
= 16 points
8 points