Table Of Contents - Mitsubishi Electric FX3G SERIES Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instructions Edition

Table of Contents

Related manuals ............................................................................................................................. 14
Generic Names and Abbreviations Used in Manuals .................................................................. 21
1. Introduction
1.1 Programming Language in PLCs ........................................................................................................... 23
1.1.1 Types of programming languages........................................................................................................... 23
1.1.2 Applicability of programming languages in programming software......................................................... 24
1.1.3 Compatibility among programs ............................................................................................................... 24
2. Overview (Sequence Program)
2.1 Introduction of Convenient Functions..................................................................................................... 25
2.1.1 Convenient functions for input processing .............................................................................................. 25
2.1.2 Convenient functions for output processing ............................................................................................ 26
2.1.3 Functions for supporting sequence control ............................................................................................. 26
2.2 Introduction of Applied Instructions ........................................................................................................ 27
2.2.1 Major applied instructions ....................................................................................................................... 27
2.3 Analog/Positioning Special Control ........................................................................................................ 29
2.4 Link and Communication........................................................................................................................ 29
2.5 Introduction of Devices Constructing PLC ............................................................................................. 30
2.5.1 Relationship among devices ................................................................................................................... 30
2.5.2 Device list................................................................................................................................................ 31
2.6 Program Memory and Devices............................................................................................................... 33
2.6.1 Memory structure .................................................................................................................................... 33
2.6.2 Memory operations and latched (battery or EEPROM backed) devices
(power ON/OFF and RUN/STOP) ..................................................................................................... 36
2.6.3 Types of backup methods against power failure..................................................................................... 40
2.6.4 Change between general devices and latched (battery backed) devices ............................................... 41
2.6.5 How to initialize devices (battery backed) ............................................................................................... 41
2.7 Types and Setting of Parameters........................................................................................................... 42
2.7.1 Parameter list .......................................................................................................................................... 42
2.7.2 Parameter initial values and available tools for changing parameter values .......................................... 44
2.7.3 Memory capacity setting range ............................................................................................................... 46
2.7.4 Compatible optional memory model........................................................................................................ 47
2.7.5 Keyword (entry code) .............................................................................................................................. 48
2.7.6 Special unit initial value setting [GX Developer Ver.8.24A or later] ........................................................ 53
2.7.7 Positioning setting [for TBL (FNC152) instruction] [GX Developer Ver.8.24A or later] ........................... 53
2.7.8 Built-in CC-Link/LT Setup (dedicated to FX
2.7.9 Parameter settings by GX Developer...................................................................................................... 53
3. Instruction List
3.1 Basic Instructions ................................................................................................................................... 66
3.2 Step Ladder Instructions ........................................................................................................................ 68
3.3 Applied Instructions ... in Ascending Order of FNC Number.................................................................. 68
4. Devices in Detail
4.1 Device Number List................................................................................................................................ 82
4.2 I/O Relays [X, Y]..................................................................................................................................... 86
4.2.1 Numbers of I/O relays ............................................................................................................................. 86
4.2.2 Functions and roles................................................................................................................................. 87
4.2.3 Operation timing of input relays .............................................................................................................. 88
4.3 Auxiliary Relay [M] ................................................................................................................................. 89
4.3.1 Numbers of auxiliary relays..................................................................................................................... 89
4.3.2 Functions and operation examples ......................................................................................................... 89
-32MT-LT-2).................................................................. 53
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