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6 Examination of System Configuration
6.3 Number of Input/Output Points and Maximum Number of Input/Output Points
74
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
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. 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 the manual of the CC-Link master block used.
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
256 points
Maximum number
of points
controllable on
system
Number of input/
output points
Total number of
input/output points
(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
(E) : Number of input/output points occupied by special function blocks
(F) : Number of remote I/O stations (units) connected to CC-Link
master
(A)(B)(C)(D)
Number of input/output
occupied points
(E) units
CC-Link remote I/O
(F) stations
For details, refer to Subsection 6.3.1.
8
points
32
points
Number of points occupied
by special function blocks
128
points
*1
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.)
-
-
Special
function block
-
-
Input
extension
block
X000 to X027
Y000 to Y017
Main unit
X030 to X047
Y020 to Y037
Input/output
powered
extension unit
X050 to X067
-
Input
extension
block
8 points 8 points
16/16=32
points
24/16=40
points
16/0=16
points
8/0=8 points
X070 to X077
-
CC-Link network
Remote I/O
(32 points)
Remote I/O
(32 points)
Remote I/O
(32 points)
Number of
remaining
points
Number of input/output points
(96 points)
0 points
256 points128
32 points 3 units = 96 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 128 points
Number of input/output points occupied by
special function blocks(16 points)
Number of CC-Link input/output points
128 points or less in total
256 points or less in total
11296
160
FX3U-16CCL-M