Contents

Front Cover
Manual number
Table of Contents
Related manuals
Generic Names and Abbreviations Used in Manuals
1. Introduction
- 1.1 Programming Language in PLCs
  - 1.1.1 Types of programming languages
  - 1.1.2 Applicability of programming languages in programming software
  - 1.1.3 Compatibility among programs
2. Overview (Sequence Program)
- 2.1 Introduction of Convenient Functions
  - 2.1.1 Convenient functions for input processing
  - 2.1.2 Convenient functions for output processing
  - 2.1.3 Functions for supporting sequence control
- 2.2 Introduction of Applied Instructions
  - 2.2.1 Major applied instructions
- 2.3 Analog/Positioning Special Control
- 2.4 Link and Communication
- 2.5 Introduction of Devices Constructing PLC
  - 2.5.1 Relationship among devices
  - 2.5.2 Device list
- 2.6 Program Memory and Devices
  - 2.6.1 Memory structure
  - 2.6.2 Memory operations and latched (battery or EEPROM backed) devices (power ON/OFF and RUN/STOP)
  - 2.6.3 Types of backup methods against power failure
  - 2.6.4 Change between general devices and latched (battery backed) devices
  - 2.6.5 How to initialize devices (battery backed)
- 2.7 Types and Setting of Parameters
  - 2.7.1 Parameter list
  - 2.7.2 Parameter initial values and available tools for changing parameter values
  - 2.7.3 Memory capacity setting range
  - 2.7.4 Compatible optional memory model
  - 2.7.5 Keyword (entry code)
  - 2.7.6 Special unit initial value setting
  - 2.7.7 Positioning instruction setting
  - 2.7.8 Built-in CC-Link/LT Setup (dedicated to FX3UC-32MT-LT-2)
  - 2.7.9 Parameter settings
3. Instruction List
- 3.1 Basic Instructions
- 3.2 Step Ladder Instructions
- 3.3 Applied Instructions ... in Ascending Order of FNC Number
4. Devices in Detail
- 4.1 Device Number List
- 4.2 I/O Relays [X, Y]
  - 4.2.1 Numbers of I/O relays
  - 4.2.2 Functions and roles
  - 4.2.3 Operation timing of I/O relays
- 4.3 Auxiliary Relay [M]
  - 4.3.1 Numbers of auxiliary relays
  - 4.3.2 Functions and operation examples
- 4.4 State Relay [S]
  - 4.4.1 Numbers of state relays
  - 4.4.2 Functions and operation examples
- 4.5 Timer [T]
  - 4.5.1 Numbers of timers
  - 4.5.2 Functions and operation examples
  - 4.5.3 Set value specification method
  - 4.5.4 Cautions on routines
  - 4.5.5 Details on timer operation and timer accuracy
  - 4.5.6 Program examples [off-delay timer and flicker timer]
  - 4.5.7 Handling timers as numeric devices
- 4.6 Counter [C]
  - 4.6.1 Numbers of counters
  - 4.6.2 Features of counters
  - 4.6.3 Related devices (to specify counting direction) [32-bit counter]
  - 4.6.4 Functions and operation examples
  - 4.6.5 Set value specification method
  - 4.6.6 Response speed of counters
  - 4.6.7 Handling counters as numeric devices
- 4.7 High-Speed Counter [C] (FX3S/FX3G/FX3GC PLCs)
  - 4.7.1 Types and device numbers of high-speed counters
  - 4.7.2 Input assignment for high-speed counters
  - 4.7.3 Handling of high-speed counters
  - 4.7.4 Current value update timing and comparison of current value
  - 4.7.5 Related devices
  - 4.7.6 Assignment of counter input terminal and switching of function
  - 4.7.7 Response frequency of high-speed counters
  - 4.7.8 Cautions on use
- 4.8 High-Speed Counter [C] (FX3U/FX3UC PLC)
  - 4.8.1 Types and device numbers of high-speed counters
  - 4.8.2 Input assignment for high-speed counters
  - 4.8.3 Handling of high-speed counters
  - 4.8.4 Current value update timing and comparison of current value
  - 4.8.5 Related devices
  - 4.8.6 Changing the logic of external reset input signal
  - 4.8.7 Assignment of counter input terminal and switching of function
  - 4.8.8 How to use 2-phase 2-count input counters C251 to C255 with 4 edge counting
  - 4.8.9 Conditions for hardware counters to be handled as software counters
  - 4.8.10 Response frequency of high-speed counters
  - 4.8.11 Cautions on use
- 4.9 Data Register and File Register [D]
  - 4.9.1 Numbers of data registers and file registers
  - 4.9.2 Structures of data registers and file registers
  - 4.9.3 Functions and operation examples of data registers
  - 4.9.4 Functions and operation examples of file registers
  - 4.9.5 Cautions on using file registers
- 4.10 Extension Register [R] and Extension File Register [ER]
  - 4.10.1 Numbers of extension registers and extension file registers
  - 4.10.2 Data storage destination and access method
  - 4.10.3 Structures of extension registers and extension file registers
  - 4.10.4 Initialization of extension registers and extension file registers
  - 4.10.5 Functions and operation examples of extension registers
  - 4.10.6 Functions and operation examples of extension file registers
  - 4.10.7 Cautions on using extension file registers
  - 4.10.8 Registration of data in extension registers and extension file registers
- 4.11 Index Register [V and Z]
  - 4.11.1 Numbers of index registers
  - 4.11.2 Functions and structures
  - 4.11.3 Indexing of devices
- 4.12 Pointer [P and I]
  - 4.12.1 Numbers of pointers
  - 4.12.2 Functions and operation examples of pointers for branch
  - 4.12.3 Functions and operation examples of pointers for interrupt
5. How to Specify Devices and Constants to Instructions
- 5.1 Numeric Values Handled in PLC (Octal, Decimal, Hexadecimal and Real Numbers)
  - 5.1.1 Types of numeric values
  - 5.1.2 Conversion of numeric values
  - 5.1.3 Handling of numeric values in floating point operations
- 5.2 Specification of Constants K, H and E (Decimal, Hexadecimal and Real Number)
  - 5.2.1 Constant K (decimal number)
  - 5.2.2 Constant H (hexadecimal number)
  - 5.2.3 Constant E (real number)
- 5.3 Character Strings
  - 5.3.1 Character string constant ("ABC")
  - 5.3.2 Character string data
- 5.4 Specification of Digits for Bit Devices (Kn[ ]***)
- 5.5 Bit Specification of a Word Device (D[ ].b)
- 5.6 Direct Specification of Buffer Memory (U[ ]\G[ ])
- 5.7 Indexing
  - 5.7.1 Indexing in basic instructions
  - 5.7.2 Indexing in applied instructions
  - 5.7.3 Indexing example for instruction with limited number of use.
6. What to Understand before Programming
- 6.1 How to Read Explanation of Instructions
- 6.2 Cautions on Creation of Fundamental Programs
  - 6.2.1 Programming procedure and execution order
  - 6.2.2 Double output (double coil) operation and countermeasures
  - 6.2.3 Circuits which cannot be programmed and countermeasures
- 6.3 I/O Processing and Response Delay
- 6.4 Mutual Relationship Among Program Flow Control Instructions
- 6.5 General Rules for Applied Instructions
  - 6.5.1 Expression and operation type of applied instructions
  - 6.5.2 Handling of general flags
  - 6.5.3 Handling of operation error flag
  - 6.5.4 Handling functions of extension flag
  - 6.5.5 Limitation in the number of instructions and limitation in simultaneous instruction instances
- 6.6 Symbolic information storage and block password
  - 6.6.1 Storage of symbolic information
  - 6.6.2 Block password
7. Basic Instruction
- 7.1 LD, LDI
- 7.2 OUT
- 7.3 AND, ANI
- 7.4 OR, ORI
- 7.5 LDP, LDF, ANDP, ANDF, ORP, ORF
- 7.6 ORB
- 7.7 ANB
- 7.8 MPS, MRD, MPP
- 7.9 MC, MCR
- 7.10 INV
- 7.11 MEP, MEF
- 7.12 PLS, PLF
- 7.13 SET, RST
- 7.14 NOP
- 7.15 END
- 7.16 Number of Instruction Steps and Specified Devices
8. Program Flow FNC 00 to FNC 09
- 8.1 FNC 00 CJ / Conditional Jump
  - 8.1.1 CJ instruction and operations of contact and coil
  - 8.1.2 Relationship between master control instruction and jump instruction
- 8.2 FNC 01 CALL / Call Subroutine
  - 8.2.1 Cautions on subroutines and interrupt routines
- 8.3 FNC 02 SRET / Subroutine Return
- 8.4 FNC 03 IRET / Interrupt Return
- 8.5 FNC 04 EI / Enable Interrupt
- 8.6 FNC 05 DI / Disable Interrupt
- 8.7 FNC 06 FEND / Main Routine Program End
- 8.8 FNC 07 WDT / Watchdog Timer Refresh
- 8.9 FNC 08 FOR / Start a FOR/NEXT Loop
- 8.10 FNC 09 NEXT / End a FOR/NEXT Loop
9. Move and Compare FNC 10 to FNC 19
- 9.1 FNC 10 CMP / Compare
- 9.2 FNC 11 ZCP / Zone Compare
- 9.3 FNC 12 MOV / Move
- 9.4 FNC 13 SMOV / Shift Move
- 9.5 FNC 14 CML / Complement
- 9.6 FNC 15 BMOV / Block Move
  - 9.6.1 Function of transfer between file registers and data registers
- 9.7 FNC 16 FMOV / Fill Move
- 9.8 FNC 17 XCH / Exchange
- 9.9 FNC 18 BCD / Conversion to Binary Coded Decimal
- 9.10 FNC 19 BIN / Conversion to Binary
10. Arithmetic and Logical Operation (+, -, , ) FNC 20 to FNC 29
- 10.1 FNC 20 ADD / Addition
- 10.2 FNC 21 SUB / Subtraction
- 10.3 FNC 22 MUL / Multiplication
- 10.4 FNC 23 DIV / Division
- 10.5 FNC 24 INC / Increment
- 10.6 FNC 25 DEC / Decrement
- 10.7 FNC 26 WAND / Logical Word AND
- 10.8 FNC 27 WOR / Logical Word OR
- 10.9 FNC 28 WXOR / Logical Exclusive OR
- 10.10 FNC 29 NEG / Negation
11. Rotation and Shift Operation FNC 30 to FNC 39
- 11.1 FNC 30 ROR / Rotation Right
- 11.2 FNC 31 ROL / Rotation Left
- 11.3 FNC 32 RCR / Rotation Right with Carry
- 11.4 FNC 33 RCL / Rotation Left with Carry
- 11.5 FNC 34 SFTR / Bit Shift Right
- 11.6 FNC 35 SFTL / Bit Shift Left
  - 11.6.1 Replacement of SFT instruction in F1 and F2 Series
- 11.7 FNC 36 WSFR / Word Shift Right
- 11.8 FNC 37 WSFL / Word Shift Left
- 11.9 FNC 38 SFWR / Shift Write [FIFO/FILO Control]
- 11.10 FNC 39 SFRD / Shift Read [FIFO Control]
12. Data Operation FNC 40 to FNC 49
- 12.1 FNC 40 ZRST / Zone Reset
- 12.2 FNC 41 DECO / Decode
- 12.3 FNC 42 ENCO / Encode
- 12.4 FNC 43 SUM / Sum of Active Bits
- 12.5 FNC 44 BON / Check Specified Bit Status
- 12.6 FNC 45 MEAN / Mean
- 12.7 FNC 46 ANS / Timed Annunciator Set
- 12.8 FNC 47 ANR / Annunciator Reset
- 12.9 FNC 48 SQR / Square Root
- 12.10 FNC 49 FLT / Conversion to Floating Point
13. High-Speed Processing FNC 50 to FNC 59
- 13.1 FNC 50 REF / Refresh
  - 13.1.1 What should be understood before using the REF instruction
- 13.2 FNC 51 REFF / Refresh and Filter Adjust
  - 13.2.1 What should be understood before using REFF instruction
- 13.3 FNC 52 MTR / Input Matrix
  - 13.3.1 Operation and cautions for the MTR instruction
- 13.4 FNC 53 HSCS / High-Speed Counter Set
  - 13.4.1 Common cautions on using instructions for high-speed counter
- 13.5 FNC 54 HSCR / High-Speed Counter Reset
- 13.6 FNC 55 HSZ / High-Speed Counter Zone Compare
  - 13.6.1 Program in which comparison result is set to ON when power is turned ON [ZCP (FNC 11) instruction]
  - 13.6.2 Table high-speed comparison mode (M8130)
  - 13.6.3 Frequency control mode (HSZ and PLSY instructions) (M8132)
- 13.7 FNC 56 SPD / Speed Detection
- 13.8 FNC 57 PLSY / Pulse Y Output
- 13.9 FNC 58 PWM / Pulse Width Modulation
- 13.10 FNC 59 PLSR / Acceleration/Deceleration Setup
14. Handy Instruction FNC 60 to FNC 69
- 14.1 FNC 60 IST / Initial State
  - 14.1.1 IST instruction equivalent circuit
  - 14.1.2 Example of IST instruction introduction (example of workpiece transfer mechanism)
- 14.2 FNC 61 SER / Search a Data Stack
- 14.3 FNC 62 ABSD / Absolute Drum Sequencer
- 14.4 FNC 63 INCD / Incremental Drum Sequencer
- 14.5 FNC 64 TTMR / Teaching Timer
- 14.6 FNC 65 STMR / Special Timer
- 14.7 FNC 66 ALT / Alternate State
- 14.8 FNC 67 RAMP / Ramp Variable Value
- 14.9 FNC 68 ROTC / Rotary Table Control
- 14.10 FNC 69 SORT / SORT Tabulated Data
15. External FX I/O Device FNC 70 to FNC 79
- 15.1 FNC 70 TKY / Ten Key Input
- 15.2 FNC 71 HKY / Hexadecimal Input
- 15.3 FNC 72 DSW / Digital Switch (Thumbwheel Input)
- 15.4 FNC 73 SEGD / Seven Segment Decoder
- 15.5 FNC 74 SEGL / Seven Segment With Latch
  - 15.5.1 How to select a seven-segment display unit
  - 15.5.2 How to select parameter "n" based on seven-segment display specifications
- 15.6 FNC 75 ARWS / Arrow Switch
- 15.7 FNC 76 ASC / ASCII Code Data Input
- 15.8 FNC 77 PR / Print (ASCII Code)
- 15.9 FNC 78 FROM / Read From A Special Function Block
  - 15.9.1 Common items between FROM instruction and TO instruction (details)
- 15.10 FNC 79 TO / Write To A Special Function Block
16. External FX Device FNC 80 to FNC 89
- 16.1 FNC 80 RS / Serial Communication
- 16.2 FNC 81 PRUN / Parallel Run (Octal Mode)
- 16.3 FNC 82 ASCI / Hexadecimal to ASCII Conversion
- 16.4 FNC 83 HEX / ASCII to Hexadecimal Conversion
- 16.5 FNC 84 CCD / Check Code
- 16.6 FNC 85 - VRRD / Volume Read
- 16.7 FNC 86 - VRSC / Volume Scale
- 16.8 FNC 87 RS2 / Serial Communication 2
- 16.9 FNC 88 PID / PID Control Loop
17. Data Transfer 2 FNC100 to FNC109
- 17.1 FNC102 ZPUSH/Batch Store of Index Register
- 17.2 FNC103 ZPOP/Batch POP of Index Register
18. Floating Point FNC110 to FNC139
- 18.1 FNC110 ECMP / Floating Point Compare
- 18.2 FNC111 EZCP / Floating Point Zone Compare
- 18.3 FNC112 EMOV / Floating Point Move
- 18.4 FNC116 ESTR / Floating Point to Character String Conversion
- 18.5 FNC117 EVAL / Character String to Floating Point Conversion
- 18.6 FNC118 EBCD / Floating Point to Scientific Notation Conversion
- 18.7 FNC119 EBIN / Scientific Notation to Floating Point Conversion
- 18.8 FNC120 EADD / Floating Point Addition
- 18.9 FNC121 ESUB / Floating Point Subtraction
- 18.10 FNC122 EMUL / Floating Point Multiplication
- 18.11 FNC123 EDIV / Floating Point Division
- 18.12 FNC124 EXP / Floating Point Exponent
- 18.13 FNC125 LOGE / Floating Point Natural Logarithm
- 18.14 FNC126 LOG10 / Floating Point Common Logarithm
- 18.15 FNC127 ESQR / Floating Point Square Root
- 18.16 FNC128 ENEG / Floating Point Negation
- 18.17 FNC129 INT / Floating Point to Integer Conversion
- 18.18 FNC130 SIN / Floating Point Sine
- 18.19 FNC131 COS / Floating Point Cosine
- 18.20 FNC132 TAN / Floating Point Tangent
- 18.21 FNC133 ASIN / Floating Point Arc Sine
- 18.22 FNC134 ACOS / Floating Point Arc Cosine
- 18.23 FNC135 ATAN / Floating Point Arc Tangent
- 18.24 FNC136 RAD / Floating Point Degrees to Radians Conversion
- 18.25 FNC137 DEG / Floating Point Radians to Degrees Conversion
19. Data Operation 2 FNC140 to FNC149
- 19.1 FNC140 WSUM / Sum of Word Data
- 19.2 FNC141 WTOB / WORD to BYTE
- 19.3 FNC142 BTOW / BYTE to WORD
- 19.4 FNC143 UNI / 4-bit Linking of Word Data
- 19.5 FNC144 DIS / 4-bit Grouping of Word Data
- 19.6 FNC147 SWAP / Byte Swap
- 19.7 FNC149 SORT2 / Sort Tabulated Data 2
20. Positioning Control FNC150 to FNC159
- 20.1 FNC150 DSZR / Dog Search Zero Return
- 20.2 FNC151 DVIT / Interrupt Positioning
- 20.3 FNC152 TBL / Batch Data Positioning Mode
- 20.4 FNC155 ABS / Absolute Current Value Read
- 20.5 FNC156 ZRN / Zero Return
- 20.6 FNC157 PLSV / Variable Speed Pulse Output
- 20.7 FNC158 DRVI / Drive to Increment
- 20.8 FNC159 DRVA / Drive to Absolute
21. Real Time Clock Control FNC160 to FNC169
- 21.1 FNC160 TCMP / RTC Data Compare
- 21.2 FNC161 TZCP / RTC Data Zone Compare
- 21.3 FNC162 TADD / RTC Data Addition
- 21.4 FNC163 TSUB / RTC Data Subtraction
- 21.5 FNC164 HTOS / Hour to Second Conversion
- 21.6 FNC165 STOH / Second to Hour Conversion
- 21.7 FNC166 TRD / Read RTC data
- 21.8 FNC167 TWR / Set RTC data
- 21.9 FNC169 HOUR / Hour Meter
22. External Device FNC170 to FNC179
- 22.1 FNC170 GRY / Decimal to Gray Code Conversion
- 22.2 FNC171 GBIN / Gray Code to Decimal Conversion
- 22.3 FNC176 RD3A / Read form Dedicated Analog Block
- 22.4 FNC177 WR3A / Write to Dedicated Analog Block
23. Introduction of Alternate Instructions FNC180
- 23.1 Instruction correspondence table
24. Others FNC181 to FNC189
- 24.1 FNC182 COMRD / Read Device Comment Data
- 24.2 FNC184 RND / Random Number Generation
- 24.3 FNC186 DUTY / Timing Pulse Generation
- 24.4 FNC188 CRC / Cyclic Redundancy Check
- 24.5 FNC189 HCMOV / High-Speed Counter Move
25. Block Data Operation FNC190 to FNC199
- 25.1 FNC192 BK+ / Block Data Addition
- 25.2 NFC193 BK / Block Data Subtraction
- 25.3 FNC194~199 BKCMP=, >, <, < >, <=, >= / Block Data Compare
26. Character String Control FNC200 to FNC209
- 26.1 FNC200 STR / BIN to Character String Conversion
- 26.2 FNC201 VAL / Character String to BIN Conversion
- 26.3 FNC202 $+ / Link Character Strings
- 26.4 FNC203 LEN / Character String Length Detection
- 26.5 FNC204 RIGHT / Extracting Character String Data from the Right
- 26.6 FNC205 LEFT / Extracting Character String Data from the Left
- 26.7 FNC206 MIDR / Random Selection of Character Strings
- 26.8 FNC207 MIDW / Random Replacement of Character Strings
- 26.9 FNC208 INSTR / Character string search
- 26.10 FNC209 $MOV / Character String Transfer
27. Data Operation 3 FNC210 to FNC219
- 27.1 FNC210 FDEL / Deleting Data from Tables
- 27.2 FNC211 FINS / Inserting Data to Tables
- 27.3 FNC212 POP / Shift Last Data Read [FILO Control]
- 27.4 FNC213 SFR / Bit Shift Right with Carry
- 27.5 FNC214 SFL / Bit Shift Left with Carry
28. Data Comparison FNC220 to FNC249
- 28.1 FNC224~230 LD =, >, <, <>, <=, >= / Data Comparison
- 28.2 FNC232~238 AND=, >, <, < >, <=, >= / Data Comparison
- 28.3 FNC240~246 OR=, >, <, < >, <=, >= / Data Comparison
29. Data Table Operation FNC250 to FNC269
- 29.1 FNC256 LIMIT / Limit Control
- 29.2 FNC257 BAND / Dead Band Control
- 29.3 FNC258 ZONE / Zone Control
- 29.4 FNC259 SCL / Scaling (Coordinate by Point Data)
- 29.5 FNC260 DABIN / Decimal ASCII to BIN Conversion
- 29.6 FNC261 BINDA / BIN to Decimal ASCII Conversion
- 29.7 FNC269 SCL2 / Scaling 2 (Coordinate by X/Y Data)
30. External Device Communication FNC270 to FNC276
- 30.1 FNC270 IVCK / Inverter Status Check
- 30.2 FNC271 IVDR / Inverter Drive
- 30.3 FNC272 IVRD / Inverter Parameter Read
- 30.4 FNC273 IVWR / Inverter Parameter Write
- 30.5 FNC274 IVBWR / Inverter Parameter Block Write
- 30.6 FNC275 IVMC / Inverter Multi Command
- 30.7 FNC276 - MODBUS Read/Write Instruction
  - 30.7.1 Command Code and Command Parameters
31. Data Transfer 3 FNC277 to FNC279
- 31.1 FNC278 RBFM / Divided BFM Read
  - 31.1.1 Common items between RBFM (FNC278) instruction and WBFM (FNC279) instruction
- 31.2 FNC279 WBFM / Divided BFM Write
32. High-Speed Processing 2 FNC280 to FNC289
- 32.1 FNC280 HSCT / High-Speed Counter Compare With Data Table
33. Extension File Register Control FNC290 to FNC299
- 33.1 FNC290 LOADR / Load From ER
- 33.2 FNC291 SAVER / Save to ER
- 33.3 FNC292 INITR / Initialize R and ER
- 33.4 FNC293 LOGR / Logging R and ER
- 33.5 FNC294 RWER / Rewrite to ER
- 33.6 FNC295 INITER / Initialize ER
34. FX3U-CF-ADP Applied Instructions FNC300 to FNC305
- 34.1 FNC300 FLCRT / File createcheck
  - 34.1.1 Detailed explanation of setting data
- 34.2 FNC301 FLDEL / File deleteCF card format
  - 34.2.1 Detailed explanation of setting data
- 34.3 FNC302 FLWR / Data write
  - 34.3.1 Detailed explanation of setting data
- 34.4 FNC303 FLRD / Data read
  - 34.4.1 Detailed explanation of setting data
- 34.5 FNC304 FLCMD / FX3U-CF-ADP command
  - 34.5.1 Detailed explanation of setting data
- 34.6 FNC305 FLSTRD / FX3U-CF-ADP status read
  - 34.6.1 Detailed explanation of setting data
35. SFC Program and Step Ladder
- 35.1 SFC Program
  - 35.1.1 Outline
  - 35.1.2 Explanation of function and operation
  - 35.1.3 SFC program creating procedure
  - 35.1.4 Handling and role of initial state relay
  - 35.1.5 Latched (battery backed) type state relays
  - 35.1.6 Role of the RET instruction
  - 35.1.7 Preliminary knowledge for creating SFC program
  - 35.1.8 SFC flow formats
  - 35.1.9 Program of branch/recombination state relays
  - 35.1.10 Rule for creating branch circuit
  - 35.1.11 Program examples
- 35.2 Step Ladder
  - 35.2.1 Outline
  - 35.2.2 Explanation of function and operation
  - 35.2.3 Expression of step ladder
  - 35.2.4 Creation of step ladder program (SFC program STL program)
  - 35.2.5 Preliminary knowledge for creating step ladder programs
  - 35.2.6 Program with state relays in branches and recombination
  - 35.2.7 Program examples
36. Interrupt Function and Pulse Catch Function
- 36.1 Outline
- 36.2 Common Items
  - 36.2.1 How to disable interrupt function
  - 36.2.2 Related items
  - 36.2.3 Cautions on use (common)
- 36.3 Input Interrupt (Interrupt Triggered by External Signal) [Without Delay Function]
  - 36.3.1 Input interrupt (interrupt triggered by external signal) [without delay function]
  - 36.3.2 Examples of practical programs (programs to measure short pulse width)
- 36.4 Input interrupt (Interrupt by External Signal) [With Delay Function]
- 36.5 Timer Interrupt (Interrupt in Constant Cycle)
  - 36.5.1 Timer interrupt (interrupt in constant cycle)
  - 36.5.2 Examples of practical program (timer interrupt programs using applied instruction)
- 36.6 Counter Interrupt - Interrupt Triggered by Counting Up of High-Speed Counter
- 36.7 Pulse Catch Function [M8170 to M8177]
- 36.8 Pulse width/Pulse period measurement function [M8075 to M8079, D8074 to D8097]
37. Operation of Special Devices (M8000 -, D8000 -)
- 37.1 Special Device List (M8000 -, D8000 -)
  - 37.1.1 Special Auxiliary Relay (M8000 to M8511)
  - 37.1.2 Special Data Register (D8000 to D8511)
- 37.2 Supplement of Special Devices (M8000 - and D8000 -)
  - 37.2.1 RUN monitor and initial pulse [M8000 to M8003]
  - 37.2.2 Watchdog timer [D8000]
  - 37.2.3 Battery voltage low detection [M8005 and M8006]
  - 37.2.4 Power failure detection time [D8008, M8008 and M8007]
  - 37.2.5 Scan time (monitor) [D8010 to D8012]
  - 37.2.6 Internal clock [M8011 to M8014]
  - 37.2.7 Real time clock [M8015 to M8019 and D8013 to D8019]
  - 37.2.8 How to set real time clock
  - 37.2.9 Input filter adjustment [D8020]
  - 37.2.10 Battery [BATT (BAT)] LED and [ALM] LED OFF command [M8030]
  - 37.2.11 Built-in analog volume [D8030 and D8031]
  - 37.2.12 Clear command [M8031 and M8032]
  - 37.2.13 Memory hold stop [M8033] (output hold in STOP mode)
  - 37.2.14 All outputs disable [M8034]
  - 37.2.15 Individual operation for RUN/STOP input [M8035 to M8037]
  - 37.2.16 Constant scan mode [M8039 and D8039]
  - 37.2.17 State control in program with STL instruction/SFC chart [M8040]
  - 37.2.18 Analog expansion boards [M8260 to M8279 and D8260 to D8279]
  - 37.2.19 Analog special adapters [M8260 to M8299 and D8260 to D8299]
38. Error Check Method and Error Code List
- 38.1 States and Colors of LEDs PLC Operation Status
  - 38.1.1 POWER (POW) LED [lit, flickering or unlit]
  - 38.1.2 RUN LED [lit or unlit]
  - 38.1.3 BATT (BAT) LED [lit or unlit] [FX3U/FX3UC]
  - 38.1.4 ALM LED [lit or unlit] [FX3G/FX3GC]
  - 38.1.5 ERROR (ERR) LED [lit, flickering or unlit]
  - 38.1.6 L RUN LED [FX3UC-32MT-LT(-2)]
  - 38.1.7 L ERR LED [FX3UC-32MT-LT(-2)]
- 38.2 Error Code Check Method and Indication
  - 38.2.1 Error code check method by display module
  - 38.2.2 Error code check method by GX Works2
  - 38.2.3 Error indication
- 38.3 Supplementary Explanation of Devices for Error Detection
  - 38.3.1 Error detection (M8060 to/D8060 to)
  - 38.3.2 Operations of special devices for error detection
  - 38.3.3 Error detection timing
- 38.4 Error Code List and Action
Appendix A: Programming Tool Applicability and Version Upgrade History
- Appendix A-1 Programming Tool Applicability
  - Appendix A-1-1 Programming tool applicability
  - Appendix A-1-2 Cautions on writing during RUN
  - Appendix A-1-3 Precautions on Use of (Built-in USB) Programming Port
  - Appendix A-1-4 Cautions on using transparent function by way of USB in GOT1000 Series
  - Appendix A-1-5 Cautions on using transparent (2-port) function of GOT-F900 Series
- Appendix A-2 Peripheral product applicability (except programming tools)
  - Appendix A-2-1 Peripheral product applicability
- Appendix A-3 Version Upgrade History
  - Appendix A-3-1 Manufacturer's serial number check method
  - Appendix A-3-2 Version check
  - Appendix A-3-3 Version upgrade history [FX3S]
  - Appendix A-3-4 Version upgrade history [FX3G]
  - Appendix A-3-5 Version upgrade history [FX3GC]
  - Appendix A-3-6 Version upgrade history [FX3U]
  - Appendix A-3-7 Version upgrade history [FX3UC]
Appendix B: Instruction Execution Time
- Appendix B-1 Basic Instruction Execution Time
- Appendix B-2 Step Ladder Instruction Execution Time
- Appendix B-3 Label (P/I) Execution Time
- Appendix B-4 Applied Instruction Execution Time
- Appendix B-5 Execution Time of Pulse Generation Instruction P in Each Applied Instruction
- Appendix B-6 Execution Time on Combination of Applicable Devices and Indexing
  - Appendix B-6-1 Basic instruction (LD/LDI/AND/ANI/OR/ORI) execution time
  - Appendix B-6-2 Applied instruction execution time
Appendix C: Applied Instruction List [by Instruction Type/in Alphabetic Order]
- Appendix C-1 Applied instructions [by instruction type]
- Appendix C-2 Applied instructions [in alphabetical order]
Appendix D: Discontinued models
Warranty
Revised History
Back Cover

Mitsubishi Electric FX3S, FX3G, FX3GC, FX3U, FX3UC Programming Manual

Mitsubishi Electric FX3S, FX3G, FX3GC, FX3U, FX3UC manual cover

Pages 968

Year 2021

Language(s)

of 968

Mitsubishi Electric FX3S, FX3G, FX3GC, FX3U, FX3UC Specification

The Mitsubishi Electric FX3 series encompasses a range of advanced programmable logic controllers (PLCs) designed to meet diverse automation needs, featuring the FX3S, FX3G, FX3GC, FX3U, and FX3UC models. These PLCs offer robust performance with a compact design, ensuring flexibility and scalability across various industrial applications. The FX3S model is tailored for small-scale systems, offering basic control capabilities with a focus on cost-effectiveness and ease of use. Its compact size and simplified functionality make it ideal for straightforward automation tasks.

The FX3G and FX3GC models provide enhanced performance for medium-scale applications, supporting a broader range of I/O options and superior processing speed. The FX3GC variant includes additional communication capabilities, suitable for networked environments requiring distributed control and integration. The FX3U and FX3UC models are engineered for high-performance applications, boasting advanced features such as high-speed processing, extensive I/O expansion, and multiple communication interfaces. The FX3UC offers a space-saving design with ultra-compact dimensions, ideal for installations where space is a premium concern without compromising on power and functionality.

Across the FX3 series, Mitsubishi Electric ensures compatibility with a wide array of expansion modules and networking options, allowing seamless integration into existing systems. These PLCs support various communication protocols, including Ethernet, RS-232, and RS-485, facilitating connectivity and data exchange in complex automation environments. The series is also supported by the GX Works2 software, providing intuitive programming, debugging, and maintenance capabilities. Overall, the Mitsubishi Electric FX3 series is recognized for its reliability, versatility, and user-friendly design, making it a preferred choice for both simple and sophisticated automation solutions.

Mitsubishi Electric FX3S, FX3G, FX3GC, FX3U, FX3UC F.A.Q.

How can I perform a factory reset on the Mitsubishi FX3S PLC?

To perform a factory reset on the FX3S PLC, power off the device, set the DIP switch to the reset position, and power it back on. This will restore the PLC to its default settings.

What is the maximum expansion module support for FX3G series PLCs?

The FX3G series PLC can support up to 256 input/output points through expansion modules, depending on the specific configuration and modules used.

How do I troubleshoot communication issues between the FX3GC PLC and a connected HMI?

Firstly, verify that the communication cables are correctly connected and undamaged. Check the configuration settings on both the PLC and HMI to ensure they match, including baud rate and parity settings. Finally, use diagnostic tools to test the communication ports.

What are the common causes for an FX3U PLC to not power on?

Common causes include a faulty power supply, incorrect voltage settings, or blown fuses. Check the power source, inspect fuses, and ensure all connections are secure.

How can I update the firmware on my FX3UC PLC?

To update the firmware on the FX3UC PLC, connect the PLC to a computer with the Mitsubishi GX Developer software, navigate to the firmware update section, and follow the on-screen instructions to upload the new firmware file.

What maintenance steps should be regularly performed on FX3 series PLCs?

Regular maintenance includes checking for firmware updates, ensuring all connections are tight and secure, inspecting for physical damage, cleaning dust from the unit, and testing backup batteries.

How can I back up and restore the program from an FX3U PLC?

Use the Mitsubishi GX Works2 software to connect to the PLC. Select the backup option to save the current program to your PC. For restoration, use the restore function to upload the saved program back to the PLC.

Can the FX3S PLC be programmed using GX Developer software?

Yes, the FX3S PLC is compatible with Mitsubishi's GX Developer software, which can be used for programming and configuring the PLC.

What is the procedure to replace the battery in an FX3G PLC?

To replace the battery, ensure the PLC is powered off. Open the battery compartment, remove the old battery, and insert the new one. Ensure correct polarity, close the compartment, and power the PLC back on.

How can I connect an FX3U PLC to a SCADA system?

Connect the FX3U PLC to the SCADA system using a communication interface such as Modbus or Ethernet. Configure the communication parameters in both the PLC and SCADA software to ensure compatibility and proper data exchange.