Maximum Number Of Input/Output Points When As-I Master Is Used - Mitsubishi FX3UC SERIES User Manual

FX Series Programmable Controllers
3UC
User's Manual - Hardware Edition
1.8.3

Maximum number of input/output points when AS-i master is used

1. Calculation of maximum number of input/output points
The maximum number of input/output points available is as follows when the FX
later, FX -
3UC
Maximum number of
input/output points
384 points
Maximum number
of points
controllable on
system
(A): Number of input/output points of main unit
(B): Number of input/output points of input/output extension
blocks
(C): Number of remote I/O points of CC-Link/LT built-in
master(FX3UC-32MT-LT), FX2N-64CL-M, FX2N-16LNK-M.
*1. Up to 31 slaves can be connected to the AS-i system master block.
The maximum number is calculated by the formula "8 points × number of slaves" regardless of the
number of I/O points used on one slave.
For details, refer to the AS-i System User's Manual.
2. Procedures for calculating number of input/output points based on example of system
configuration
For the main unit, input/output blocks and AS-i system, the number of input/output points and the total
number of points are restricted.
X000 to X017 X020 to X057
Main unit
(Example:
extension
FX -32MT/ )
3UC
Y000 to Y017
16/16
= 32 points = 32 points
Slave 5 Slave 4
(4 points) (4 points)
Number of input/output points occupied by special function units/blocks
0 points
Number of input/output points (128 points)
Number of input/output points (excluding number of input/output points on
AS-i system) + Number of input/output occupied points
52
1.8 Number of Input/Output Points and Maximum Number of Input/Output Points
MT/D or FX - MT/DSS and an AS-i master block are used.
3UC
→ For the method of calculating the number of I/O points, refer to Subsection 1.8.1.
Number of input/
output points
(A)(B)(C)
≥
+
Total number of
input/output points
For the details, refer to Subsection 1.8.1.
X060 to X117
Input Input
extension extension
block block
- - Y020 to Y057
32/0 32/0
= 32 points = 32 points
Repeater
Slave 3
(8 points)
Up to 256 points
384 points or less in total
Number of input/output occupied
points
× 8
(D) units
points
Number of points occupied by
special function units/blocks
(D): Number of input/output points occupied by special
function units/blocks
(E): Number of active slaves connected to AS-i system
master block
- -
Output
Special
function unit
block
-
0/32
8 points
AS-i system
Slave 2 Slave 1
(8 points) (4 points)
136 144 160
128
Number of
remaining points
Number of remaining points
Number of AS-i system input/output points
Up to 248 points (31 slaves × 8 points)
-32MT-LT Ver. 2.20 or
3UC
Number of active slaves
× 8
(E)
points
+ Total number of points obtained by
formula "number of active slaves × 8
points"
(The number is calculated by
multiplying by 8 points regardless of
the number of input/output points of
the active slaves.)
-
FX -32ASI-M
2N
-
8 points
AS-i power
supply
256 344 384 points
8 points
× 5 units
= 40 points
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