Numbers And Assignment In System; Module Input/Output Number; Module Number Of Extension Modules - Mitsubishi Electric MELSEC iQ-F FX6U Hardware User Manual

4.6

Numbers and Assignment in System

Input/output numbers and module numbers in an FX5U CPU module system are explained.

Module input/output number

The input/output numbers are octal numbers. Input is assigned to "X" and output to "Y."
Input/output numbers are used for communication of ON/OFF data between I/O modules and the CPU module.
• Input/output numbers (X/Y) are octal.
Input/output numbers (X/Y) are automatically assigned as shown below.
X0 to X7, X10 to X17, X20 to X27, ... X70 to X77, X100 to X107, ...
Y0 to Y7, Y10 to Y17, Y20 to Y27, ... Y70 to Y77, Y100 to Y107, ...
• Numbers for added I/O module
To an added I/O module, input numbers and output numbers following the input numbers and output numbers given to the
preceding device are assigned. The last digit of the assigned numbers must begin with 0.

Module number of extension modules

The CPU module automatically assigns numbers (1 to 16) to intelligent function modules or bus conversion module as module
numbers in order of distance from the CPU module.
• Intelligent function modules or bus conversion module connected to the CPU module
Module numbers are assigned to intelligent function modules in order of distance from the CPU module: No. 1 to No. 16.
• Products to which module numbers are not assigned
Module numbers are not assigned to the following extension devices.
• I/O module
• Expansion board
• Expansion adapter
• Connector conversion module
• Connector conversion adapter
• Extension power supply module
Ex.
CPU module
Expansion
Expansion
adapters
board
FX5-232ADP
4 SYSTEM CONFIGURATION
88
4.6 Numbers and Assignment in System
FX5-16EX/ES, FX5-16EYT/ES, etc.
FX5-232-BD, FX5-485-BD, etc.
FX5-232ADP, FX5-485ADP, etc.
FX5-CNV-IF
FX5-CNV-BC
FX5-1PSU-5V, FX5-C1PS-5V, FX3U-1PSU-5V
Input module Output module
FX5-16EX/ES FX5-16EYT/ES
Module No.
No.1 No.3
No.2
FX5
Bus
Intelligent Intelligent
conversion
module
module
FX5-40SSC-S FX3U-1PG
No.4
FX3 FX3
Intelligent
module module
FX3U-4AD