4 SYSTEM CONFIGURATION
4.5 Numbers and Assignment in System
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4
4.5
Numbers and Assignment in System
Input/output numbers and module numbers in an FX5UJ 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, ...
X16, X17, Y12 to Y17 for FX5UJ-24M
, and X44 to X47 for FX5UJ-60M
are vacant numbers.
• 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 8) to intelligent function modules as module numbers in order of
distance from the CPU module.
• Intelligent function modules 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. 8.
• Products to which module numbers are not assigned
Module numbers are not assigned to the following extension devices.
Ex.
• I/O module
FX5-16EX/ES, FX5-16EYT/ES, etc.
• Expansion board
FX5-232-BD, FX5-485-BD, etc.
• Expansion adapter
FX5-232ADP, FX5-485ADP, etc.
• Connector conversion module
FX5-CNV-IF
• Connector conversion adapter
FX5-CNV-BC
• Extension power supply module
FX5-1PSU-5V
CPU module
Expansion
adapters
FX5-232ADP
Input
module
FX5-16EX/ES
Output
module
FX5-16EYT/ES
No.2
Module No.
No.1
Expansion
board
No.3
Intelligent
module
FX5-40SSC-S
Extension
power
supply
module
Intelligent
module
FX5-4AD
Intelligent
module
FX5-20PG-P
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