Number Of Input/Output Points And Maximum Number Of Input/Output Points; Calculation Of Number Of Input/Output Points - Mitsubishi FX3U SERIES User Manual

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
6.3 Number of Input/Output Points and Maximum Number of Input/Output
Points
6.3.1

Calculation of number of input/output points

To obtain the total number of input/output points, count the input/output points of input/output powered
extension units/blocks and the input/output occupied points of special function units/blocks.
The number of remote I/O points on CC-Link or AS-i master network must be excluded.
1
Total the number of input/output points on the main unit and the number of
those on the input/output powered extension units/blocks.
To obtain the total number of input/output points, count the input points (X000 and more) and output
points (Y000 and more) of the main unit and input/output powered extension units/blocks.
The number of input/output points of each type of device is shown on the list below.
2
Count the input/output points of the remote I/O stations connected on FX
64CL-M or FX
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, refer to the manual of each master.
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.
Number of special function
units/blocks
Number of special function
units/blocks
Observe the following instructions when using the following products.
• FX -1RM(-SET)
2N
Up to 3 units can be sequentially connected to the end of one system.
However, when three units are connected, they are counted as one unit, and the number of input/output
occupied points is 8.
• FX -16CCL-M(CC-Link master)
2N
This master cannot be used together with FX
When more than one master station is connected, a remote I/O station cannot be connected to the 2nd and
following master stations.
• FX -32ASI-M(AS-i master)
2N
This master cannot be used together with FX
Only one station can be used for the whole system.
80
→ The list of numbers of input/output points is shown in Section 6.8.
-16LNK-M network.
2N
→ For a list of occupied input/output points, refer to Section 6.8.
Number of points per unit
units 8 points
×
Each special function unit/block
used for FROM/TO instructions
occupies eight input or output
points.

6.3 Number of Input/Output Points and Maximum Number of Input/Output Points

Number of occupied
input/output points
=
Total number of
occupied input/
output points
-32ASI-M.
2N
-16CCL-M.
2N
6 Examination of System Configuration
points
-
2N