Mitsubishi FX3UC Series, Руководство пользователя

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49
FX
3UC
Series Programmable Controllers
User’s Manual - Hardware Edition
1 Outline
1.8 Number of Input/Output Points and Maximum Number of Input/Output Points
1
O
utline
2
Exter
nal
D
im
en
sions
3
Ge
ne
ric
Speci
ficat
ions
4
Pow
er Suppl
y
Specif
icati
ons
5
Input Spec
ific
ations
6
O
utput
Specif
icat
ions
7
Exam
pl
es
of
W
iri
ng
fo
r
Va
rious U
ses
8
Te
rm
inal B
lock
9
CC
-L
in
k/L
T
Ma
ste
r F
X
3UC
(LT
only)
10
D
ispl
ay m
odule
FX
3UC
(L
T only)
1.8 Number of Input/Output Points and Maximum Number of Input/Output
Points
The number of input/output points and maximum number of input/output points varies depending on the PLC
version and network type.
*1. For the number of input/output points and maximum number of input/output Points, refer to Section
1.7.
1.8.1 Calculation of number of input/output points
To obtain the total number of input/output points, count the input/output points of input/output extension
blocks, the remote I/O points of the FX
3UC
-32MT-LT buit-in master and the input/output occupied points of
special function units/blocks.
1. Total the number of input/output points on the main unit and the number of those on the
input/output extension blocks.
To obtain the total number of input/output points, count the input points (X000 and higher) and output points
(Y000 and higher) of the main unit and input/output extension blocks.
2. Count the input/output points of the remote I/O stations connected to the FX
3UC
-32MT-LT
built-in master, FX
2N
-64CL-M or FX
2N
-16LNK-M network.
Add the number of remote I/O points to the number of input/output points from the main unit and input/output
powered extension units/blocks calculated in the above step.
→
For the method of calculating the number of remote I/O points (CC-Link/LT built-in master),
refer to Chapter 9.
→
For the method of calculating the number of remote I/O points (FX
2N
-64CL-M),
refer to the FX
2N
-64CL-M manual.
→
For the method of calculating the number of remote I/O points (FX
2N
-16LNK-M),
refer to the FX
2N
-16LNK-M manual.
3. Count the number of input/output occupied points of special function units/blocks.
The number of occupied input/output points per unit is 8.
The number of occupied input/output points of each type of device can be obtained by the following formula or
from the list shown below.
→
For a list of occupied input/output points, refer to Section 1.11.
Observe the following instructions when using the following products.
Number of Input/
Output Points*1
Maximum number of
input/output points*1
Reference
FX
3UC
-32MT-LT Earlier than Ver.2.20 256 256 Subsection 1.8.1.
FX
3UC
-32MT-LT Ver. 2.20 or later, FX
3UC
- MT/D or
FX
3UC
- MT/DSS when CC-Link or AS-i system is not
used
256 256 Subsection 1.8.1.
FX
3UC
-32MT-LT Ver. 2.20 or later, FX
3UC
- MT/D or
FX
3UC
- MT/DSS when CC-Link system is used
256 384
Subsection 1.8.1.
Subsection 1.8.2.
FX
3UC
-32MT-LT Ver. 2.20 or later, FX
3UC
- MT/D or
FX
3UC
- MT/DSS when AS-i system is used
256 384
Subsection 1.8.1.
Subsection 1.8.3.
Number of special function
units/blocks
×
Number of special function
units/blocks
Number of points per unit
8 points
Each special function unit/block
used for FROM/TO instructions
occupies eight input or output
points.
units
=
Number of occupied
input/output points
points
Total number of
occupied input/
output points