Example In Which The Point Mode Setting Causes An Invalid Configuration - Mitsubishi FX3UC SERIES User Manual

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

9.11.5 Example in which the point mode setting causes an invalid configuration

1. Configuration
When CL1XY2-DT1D5S (cable type remote I/O unit having 1 input point and 1 output point) x 63 units (station
No.s 1 to 63) and CL2X8-D1B2 (terminal block type remote I/O unit having 8 input points) x 1 unit are
connected
Configuration applicability for each point mode
• In 16-point mode...........The system can be constructed.
• In 4-point mode.............The system cannot be constructed since the CL2X8-D1B2 occupies 2 stations
and the number of remote stations exceeds 64.
2. The example of assignment of the I/O numbers
The I/O number assignment is as follows in the configuration example below.
FX -32MT-LT
3UC
Built-in master
Terminating
resistor
4 input
points
Set the built-in master to CONFIG mode, and turn ON the power of the PLC. Connected remote stations are
automatically checked, and I/O numbers are assigned to each remote station.
Point mode and Number of stations
Station No.
4-point mode
Station No.1
Station No.2
Station
No.3, 4, 5, 6
Station No.7
Station No.8
Unused numbers in I/O extension
The above I/O numbers are assigned as follows in the configuration example.
X000 to X017
FX -32MT-LT
3UC
Built-in master
Y000 to Y017
Terminating
resistor
Station
No.1
4 input
points
X040 to X043 X044, X045
Input extension
block
FX -16EX
2NC
4 I/O 16 input 4 I/O
points points points
Number of points
16-point mode
Station No.1 Input 4points
Input 2points/
Station No.2
Output 2points
Station No.3 Input 16points
Input 2points/
Station No.4
Output 2points
Station No.5 Input 4points
X020 to X037
Input extension
block
FX -16EX
2NC
Station Station
No. 2 No.3
4 I/O 16 input
points points
X046 to X065
Y020, Y021
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
Terminating
resistor
4 input
points
I/O assignment
number (X)
X040 to X043
X044, X045
X046 to X065
X066, X067
X070 to X073
Terminating
resistor
Station Station
No. 4 No.5
4 I/O 4 input
points points
X066, X067 X070 to X073
Y022, Y023
9.11 Assignment of I/O numbers
I/O assignment
number (Y)
-
Y020,Y021
-
Y022,Y023
-
293
1
2
3
4
5
6
7
8
9
10