Maximum Number Of Input/Output Points When As-I Master Is Used - Mitsubishi FX3U SERIES User Manual

FX Series Programmable Controllers
3U
User's Manual - Hardwaer Edition
6.3.3

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

1. Calculation of maximum number of input/output points
When AS-i system master block is used, the following maximum number of input/output points can be
connected.
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
powered extension units
(C): Number of input/output points of input/output
extension blocks
*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 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 powered extension units/blocks and AS-i system, the number of input/output
points and the total number of points are restricted.
X000 to X027 X030 to X057
Input/output
Main unit
extension unit
Y000 to Y027 Y030 to Y057
24/24
= 48 points = 48 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
Number of input/
output points
(A)(B)(C)(D)
≥
+
Total number of
input/output points
For details, refer to Subsection 6.3.1.
X060 to X077 X100 to X117
Input
powered extension extension
block
−
24/24 16/0
= 16 points = 16 points
Repeater
Slave 3
(8 points)
Up to 256 points
384 points or less in total
6.3 Number of Input/Output Points and Maximum Number of Input/Output Points
Number of input/output occupied
points
× 8 points
(E) units
Number of points occupied by
special function units/blocks
(D): Number of remote I/O points of FX
16LNK-M
(E): Number of input/output points occupied by special
function units/blocks
(F): Number of active slaves connected to AS-i system
master block
−
Input
Special
function unit
block
− −
16/0
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)
6 Examination of System Configuration
Number of active slaves
× 8 points
(F)
+ 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.)
-64CL-M or FX
2N
−
FX -32ASI-M
2N
−
8 points
AS-i power
supply
256 344 384 points
8 points
× 5 units
= 40 points
1
2
3
4
-
2N
5
6
7
8
9
10
83