Mitsubishi FX3U Series User Manual

FX3U Series Programmable Controllers
User’s Manual - Hardwaer Edition
117
7 Assignment of Input/Output Numbers (X/Y) and Unit Numbers
7.1 Assignment of Input/Output Numbers (X/Y)
1
Introduction
2
Features and Part Names
3
Product Introduction
4
Specifications
5
Version and Peripheral Devices
6
System Configuration
7
Input/Output Nos., Unit Nos.
8
Installation
9
Preparation and Power Supply Wiring
10
Input Wiring
7. Assignment of Input/Output Numbers (X/Y) and Unit
Numbers
7.1 Assignment of Input/Output Numbers (X/Y)
If input/output powered extension units/blocks have been connected when the power is turned on, the main
unit automatically assigns the input/output numbers (X/Y) (octal) to the units/blocks.
Therefore, it is unnecessary to specify the input/output numbers with parameters.
Accordingly, it is not necessary to specify input/output numbers using parameters.
It is necessary to assign input and output numbers in the following special extension unit/block:
•FX
2N-64CL-M
•FX
2N-16LNK-M
7.1.1 Concept of assigning
When the power is turned on, input/output numbers (X/Y) are assigned in accordance with the following rules.
For special function blocks, such as FX
2N-64CL-M and FX2N-16LNK-M, that assign input/output numbers to
connected remote I/O stations, refer to the manual for each block.
1. Input/output numbers (X/Y) are octal.
Octal numbers are assigned as input/output numbers (X/Y) as shown below.
- X000 to X007, X010 to X017, X020 to X027......, X070 to X077, X100 to 107...
- Y000 to Y007, Y010 to Y017, Y020 to Y027......, Y070 to Y077, Y100 to Y107...
2. Numbers for added input/output unit/block
To an added input/output powered extension unit/block, 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.
For example, when the last number on the preceding device is X043, the input numbers are assigned to the
next device starting from X050.
(When the FX
2N-8ER is used, some input/output numbers are not used.)
(X044 to X047: Unused numbers)
(Y024 to Y027: Unused numbers)
X050 to X057X000 to X017 X020 to X037 X040 to X043
Main unit
FX
3U -32MR/ES
Input extension
block
FX
2N -16EX
Input/output
extension block
FX
2N -8ER
Input extension
block
FX
2N -8EX
Y000 to Y017 Y020 to Y023

Mitsubishi FX3U Series Specifications

General

Brand	Mitsubishi
Model	FX3U Series
Category	Controller
Language	English