Mitsubishi FX3UC Series User Manual

291
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
9.11 Assignment of I/O numbers
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)
9.11.3 Automatic assignment of I/O numbers
The I/O numbers can be assigned automatically in CONFIG mode.
Parameter settings and sequence programs are not necessary for this assignment.
Operating procedure
Execute the steps 1) to 5) below to assign the I/O numbers automatically.
1 Connect each remote I/O unit to the built-in master.
2 Set to CONFIG mode
Set the DIP switch 6 to ON and DIP switch 7 to OFF (CONFIG mode) in the FX3UC-32MT-LT.
3 Turn the power ON
Turn ON the power supply adapter (or dedicated power supply) and then the FX 3UC -32MT-LT (in
this order).
The built-in master collects information (types and numbers of I/O) on connected remote stations,
and stores the collected information in the buffer memory [BFM #32 (20h) to #95 (5Fh)] and built-in
memory (EEPROM).
4 Check the remote I/O unit connection status.
Confirm that the contents of the buffer memory [BFM #32 (20h) to #95 (5Fh)] are consistent with
the actual system configuration.
5 Change the operation mode to "ONLINE", and start the PLC again (power
OFF → ON).
Set the DIP switch 6 to OFF (and leave the DIP switch 7 in OFF) in the FX 3UC -32MT-LT, and turn
ON the power of the PLC again.
When a power supply adapter or dedicated power supply is used, turn ON the power in the order
"Power supply adapter (or dedicated power supply) → PLC (built-in master)".
The FX
3UC -32MT-LT reads information on connected remote stations from the built-in memory
(EEPROM), and assigns the I/O number.
9.11.4 Extension equipment types and I/O number assignment order
1. Rule of assignment order
I/O numbers are automatically assigned consecutively from the main unit (built-in unit).
I/O numbers are always assigned at the end to the remote I/O unit connected to the CC-Link/LT built-in
master as shown below.
Extendable range
FX 3UC -32MT-LT
Input/output
• I/O extension blocks
• Remote I/O unit
connected to FX
2N -
64CL-M
• Remote I/O unit
connected to CC-
Link/LT built-in
master
12
3
Special function
devices
(including 8 points in
FX
2N -64CL-M)
"256 points" - "Number of I/O
occupied points"
Up to 256 points
Number of I/O
occupied points
Assignment
order

Mitsubishi FX3UC Series Specifications

General

Brand	Mitsubishi
Model	FX3UC Series
Category	Controller
Language	English