User manual

3
FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
Table of Contents
Table of Contents
Related manuals ............................................................................................................................. 14
Generic Names and Abbreviations Used in Manuals .................................................................. 21
1. Introduction 23
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) 25
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..................................................................................... 42
2.6.4 Change between general devices and latched (battery backed) devices............................................... 43
2.6.5 How to initialize devices (battery backed) ............................................................................................... 43
2.7 Types and Setting of Parameters........................................................................................................... 44
2.7.1 Parameter list .......................................................................................................................................... 44
2.7.2 Parameter initial values and available tools for changing parameter values .......................................... 45
2.7.3 Memory capacity setting range ............................................................................................................... 48
2.7.4 Compatible optional memory model........................................................................................................ 49
2.7.5 Keyword (entry code).............................................................................................................................. 50
2.7.6 Special unit initial value setting ............................................................................................................... 58
2.7.7 Positioning instruction setting.................................................................................................................. 58
2.7.8 Built-in CC-Link/LT Setup (dedicated to FX
3UC-32MT-LT-2).................................................................. 58
2.7.9 Parameter settings .................................................................................................................................. 58
3. Instruction List 70
3.1 Basic Instructions................................................................................................................................... 70
3.2 Step Ladder Instructions ........................................................................................................................ 72
3.3 Applied Instructions ... in Ascending Order of FNC Number..................................................................72
4. Devices in Detail 83
4.1 Device Number List................................................................................................................................ 83
4.2 I/O Relays [X, Y]..................................................................................................................................... 89
4.2.1 Numbers of I/O relays ............................................................................................................................. 89
4.2.2 Functions and roles................................................................................................................................. 90
4.2.3 Operation timing of I/O relays ................................................................................................................. 91
4.3 Auxiliary Relay [M] ................................................................................................................................. 92
4.3.1 Numbers of auxiliary relays..................................................................................................................... 92
4.3.2 Functions and operation examples ......................................................................................................... 92