295
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
9.12 Specification of reserved station
1
Outline
2
External
Dimensions
3
Generic
Specifications
4
Power Supply
Specifications
5
Input
Specifications
6
Output
Specifications
7
Examples of
Wiring for
Various Uses
8
Terminal Block
9
CC-Link/LT
Master FX
3UC
(LT only)
10
Display module
FX
3UC
(LT only)
9.12 Specification of reserved station
If remote stations will be added in the future, temporary I/O numbers can be assigned.
This function allows the user to change the number of I/O points and assign I/O numbers to unconnected
station numbers so that I/O numbers in other remote stations will not be changed when a remote station is
added in the future.
→ For the reserved station specification method, refer to "Subsection 9.13.1 How to edit detailed
remote station information".
When a remote station is not connected to a reserved station number, the system does not detect
wire breakage or other errors (Reserved station flag b15 = ON).
→ For detailed Cautions on use, refer to Subsection 9.13.3.
9.13 Editing the detailed remote station information
After assigning the I/O numbers in CONFIG mode, the I/O number assignment in each station number can be
edited.
The number of I/O points can be changed, and the I/O numbers can be assigned to unconnected station
numbers for future use. Therefore, if remote stations are added in the future, it is not necessary to change the
I/O numbers in other remote stations and extension blocks/units connected to the PLC.
Detailed remote station information can be edited only in the programming software GX Developer.
→ For the edit method, refer to Subsection 9.13.1.
If a remote station is not connected to an edited station number, errors such as wire breakage may occur.
(Reserved station flag b15 = OFF)
→ For detailed Cautions on use, refer to Subsection 9.13.3.
9.13.1 How to edit detailed remote station information
The detailed remote station information can be changed using GX Developer.
1. Configuration example
2. Example
(Example1) Detailed remote station information (Station No.1)
Function Setting Content Setting Value
Number of I/O points 4 points
H0904
Input flag Input is given.
Output flag Output is not given.
Head station flag Head station.
Input filter setting General-purpose input
Output hold/clear setting CLEAR
Reserved station flag Not a reserved station.
FX
3UC
-32MT-LT
Built-in master
Input extension
block
FX
2NC
-16EX
Station No.1
4 input points
Station No. 2
4 I/O points
Station No.3
16 input points
Station No. 4
4 I/O points
Station No.5
4 input points
Station No.6
4 input points
Reserved station
(example 2)
(example 1)
Terminating
resistor
Terminating
resistor