Factory Automation

MELSEC-F series Application instructions

    Program Flow

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    00 CJ Conditional Jump ○ ○ ○ ○ ○
    01 CALL Call Subroutine ○ ○ ○ ○ ○
    02 SRET Subroutine Return ○ ○ ○ ○ ○
    03 IRET Interrupt Return ○ ○ ○ ○ ○
    04 EI Enable Interrupt ○ ○ ○ ○ ○
    05 DI Disable Interrupt ○ ○ ○ ○ ○
    06 FEND Main Routine Program End ○ ○ ○ ○ ○
    07 WDT Watchdog Timer Refresh ○ ○ ○ ○ ○
    08 FOR Start a FOR/NEXT Loop ○ ○ ○ ○ ○
    09 NEXT End a FOR/NEXT Loop ○ ○ ○ ○ ○

    Move and Compare

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    10 CMP Compare ○ ○ ○ ○ ○
    11 ZCP Zone Compare ○ ○ ○ ○ ○
    12 MOV Move ○ ○ ○ ○ ○
    13 SMOV Shift Move ○ ○ ○ ○ ○
    14 CML Complement ○ ○ ○ ○ ○
    15 BMOV Block Move ○ ○ ○ ○ ○
    16 FMOV Fill Move ○ ○ ○ ○ ○
    17 XCH Exchange - - ○ - ○
    18 BCD Conversion to Binary Coded Decimal ○ ○ ○ ○ ○
    19 BIN Conversion to Binary ○ ○ ○ ○ ○

    Arithmetic and Logical Operation

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    20 ADD Addition ○ ○ ○ ○ ○
    21 SUB Subtraction ○ ○ ○ ○ ○
    22 MUL Multiplication ○ ○ ○ ○ ○
    23 DIV Division ○ ○ ○ ○ ○
    24 INC Increment ○ ○ ○ ○ ○
    25 DEC Decrement ○ ○ ○ ○ ○
    26 WAND Logical Word AND ○ ○ ○ ○ ○
    27 WOR Logical Word OR ○ ○ ○ ○ ○
    28 WXOR Logical Exclusive OR ○ ○ ○ ○ ○
    29 NEG Negation - - ○ - ○

    Rotation and Shift Operation

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    30 ROR Rotation Right ○ ○ ○ ○ ○
    31 ROL Rotation Left ○ ○ ○ ○ ○
    32 RCR Rotation Right with Carry - - ○ - ○
    33 RCL Rotation Left with Carry - - ○ - ○
    34 SFTR Bit Shift Right ○ ○ ○ ○ ○
    35 SFTL Bit Shift Left ○ ○ ○ ○ ○
    36 WSFR Word Shift Right ○ ○ ○ ○ ○
    37 WSFL Word Shift Left ○ ○ ○ ○ ○
    38 SFWR Shift write
    [FIFO/FILO control]     		○ ○ ○ ○ ○
    39 SFRD Shift read
    [FIFO control]     		○ ○ ○ ○ ○

    Data Operation

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    40 ZRST Zone Reset ○ ○ ○ ○ ○
    41 DECO Decode ○ ○ ○ ○ ○
    42 ENCO Encode ○ ○ ○ ○ ○
    43 SUM Sum of Active Bits ○ ○ ○ ○ ○
    44 BON Check Specified Bit Status ○ ○ ○ ○ ○
    45 MEAN Mean ○ ○ ○ ○ ○
    46 ANS Timed Annunciator Set - ○ ○ ○ ○
    47 ANR Annunciator Reset - ○ ○ ○ ○
    48 SQR Square Root - - ○ - ○
    49 FLT Conversion to Floating Point ○ ○ * ○ ○ ○
    • *Supported in FX3G series ver. 1.10 and later

    High-Speed Processing

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    50 REF Refresh ○ ○ ○ ○ ○
    51 REFF Refresh and filter adjust - - ○ - ○
    52 MTR Input Matrix ○ ○ ○ ○ ○
    53 HSCS High-speed counter set ○ ○ ○ ○ ○
    54 HSCR High-speed counter reset ○ ○ ○ ○ ○
    55 HSZ High-speed counter zone compare ○ ○ ○ ○ ○
    56 SPD Speed Detection ○ ○ ○ ○ ○
    57 PLSY Pulse Y Output ○ ○ ○ ○ ○
    58 PWM Pulse Width Modulation ○ ○ ○ ○ ○
    59 PLSR Acceleration/deceleration setup ○ ○ ○ ○ ○

    Handy Instruction

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    60 IST Initial State ○ ○ ○ ○ ○
    61 SER Search a Data Stack ○ ○ ○ ○ ○
    62 ABSD Absolute drum sequencer ○ ○ ○ ○ ○
    63 INCD Incremental drum sequencer ○ ○ ○ ○ ○
    64 TTMR Teaching Timer - - ○ - ○
    65 STMR Special Timer - - ○ - ○
    66 ALT Alternate State ○ ○ ○ ○ ○
    67 RAMP Ramp Variable Value ○ ○ ○ ○ ○
    68 ROTC Rotary Table Control - - ○ - ○
    69 SORT SORT Tabulated Data - - ○ - ○

    External FX I/O Device

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    70 TKY Ten Key Input - - ○ - ○
    71 HKY Hexadecimal Input - - ○ - ○
    72 DSW Digital switch (thumbwheel input) ○ ○ ○ ○ ○
    73 SEGD Seven Segment Decoder - - ○ - ○
    74 SEGL Seven Segment With Latch ○ ○ ○ ○ ○
    75 ARWS Arrow Switch - - ○ - ○
    76 ASC ASCII code data input - - ○ - ○
    77 PR Print (ASCII Code) - - ○ - ○
    78 FROM Read From A Special Function Block - ○ ○ ○ ○
    79 TO Write To A Special Function Block - ○ ○ ○ ○

    External FX Device

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    80 RS Serial Communication ○ ○ ○ ○ ○
    81 PRUN Parallel Run (Octal Mode) ○ ○ ○ ○ ○
    82 ASCI Hexadecimal to ASCII Conversion ○ ○ ○ ○ ○
    83 HEX ASCII to Hexadecimal Conversion ○ ○ ○ ○ ○
    84 CCD Check Code ○ ○ ○ ○ ○
    85 VRRD Volume Read ○ ○ *1 ○ *2 - ○ *2
    86 VRSC Volume Scale ○ ○ *1 ○ *2 - ○ *2
    87 RS2 Serial Communication 2 ○ ○ ○ ○ ○
    88 PID PID Control Loop ○ ○ ○ ○ ○
    89～99 -            
    • *1Supported in FX3G series ver. 1.10 and later
    • *2Supported in FX3U/FX3UC series ver. 2.70 and later

    Data Transfer

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    100, 101 -            
    102 ZPUSH Batch Store of Index Register - - ○ - ○ *
    103 ZPOP Batch POP of Index Register - - ○ - ○ *
    104～109 -            
    • *Supported in FX3UC series ver. 2.20 and later

    Floating Point

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    110 ECMP Floating Point Compare ○ ○ * ○ ○ ○
    111 EZCP Floating Point Zone Compare - - ○ - ○
    112 EMOV Floating Point Move ○ ○ * ○ ○ ○
    113～115 -            
    116 ESTR Floating Point to Character String Conversion - - ○ - ○
    117 EVAL Character String to Floating Point Conversion - - ○ - ○
    118 EBCD Floating Point to Scientific Notation Conversion - - ○ - ○
    119 EBIN Scientific Notation to Floating Point Conversion - - ○ - ○
    120 EADD Floating Point Addition ○ ○ * ○ ○ ○
    121 ESUB Floating Point Subtraction ○ ○ * ○ ○ ○
    122 EMUL Floating Point Multiplication ○ ○ * ○ ○ ○
    123 EDIV Floating Point Division ○ ○ * ○ ○ ○
    124 EXP Floating Point Exponent - - ○ - ○
    125 LOGE Floating Point Natural Logarithm - - ○ - ○
    126 LOG10 Floating Point Common Logarithm - - ○ - ○
    127 ESQR Floating Point Square Root ○ ○ * ○ ○ ○
    128 ENEG Floating Point Negation - - ○ - ○
    129 INT Floating Point to Integer Conversion ○ ○ * ○ ○ ○
    130 SIN Floating Point Sine - - ○ - ○
    131 COS Floating Point Cosine - - ○ - ○
    132 TAN Floating Point Tangent - - ○ - ○
    133 ASIN Floating Point Arc Sine -1 - - ○ - ○
    134 ACOS Floating Point Arc Cosine -1 - - ○ - ○
    135 ATAN Floating Point Arc Tangent -1 - - ○ - ○
    136 RAD Floating Point Degrees to Radians Conversion - - ○ - ○
    137 DEG Floating Point Radians to Degrees Conversion - - ○ - ○
    138, 139 -            
    • *Supported in FX3G series ver. 1.10 and later

    Data Operation 2

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    140 WSUM Sum of Word Data - - ○ - ○ *
    141 WTOB WORD to BYTE - - ○ - ○ *
    142 BTOW BYTE to WORD - - ○ - ○ *
    143 UNI 4-bit Linking of Word Data - - ○ - ○ *
    144 DIS 4-bit Grouping of Word Data - - ○ - ○ *
    145, 146 -            
    147 SWAP Byte Swap - - ○ - ○
    148 -            
    149 SORT2 Sort Tabulated Data 2 - - ○ - ○ *
    • *Supported in FX3UC series ver. 2.20 and later

    Positioning Control

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    150 DSZR DOG Search Zero Return ○ ○ ○ ○ ○
    151 DVIT Interrupt Positioning - - ○ - ○
    152 TBL Batch Data Positioning Mode - ○ ○ ○ ○ *
    153, 154 -            
    155 ABS Absolute Current Value Read ○ ○ ○ ○ ○
    156 ZRN Zero Return ○ ○ ○ ○ ○
    157 PLSV Variable Speed Pulse Output ○ ○ ○ ○ ○
    158 DRVI Drive to Increment ○ ○ ○ ○ ○
    159 DRVA Drive to Absolute ○ ○ ○ ○ ○
    • *Supported in FX3UC series ver. 2.20 and later

    Real Time Clock Control

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    160 TCMP RTC data compare ○ ○ ○ ○ ○
    161 TZCP RTC data zone compare ○ ○ ○ ○ ○
    162 TADD RTC data addition ○ ○ ○ ○ ○
    163 TSUB RTC data subtraction ○ ○ ○ ○ ○
    164 HTOS Hour to second conversion - - ○ - ○
    165 STOH Second to hour conversion - - ○ - ○
    166 TRD Read RTC data ○ ○ ○ ○ ○
    167 TWR Set RTC data ○ ○ ○ ○ ○
    168 -            
    169 HOUR Hour Meter ○ ○ ○ ○ ○

    External Device

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    170 GRY Decimal to Gray Code Conversion ○ ○ ○ ○ ○
    171 GBIN Gray Code to Decimal Conversion ○ ○ ○ ○ ○
    172～175 -            
    176 RD3A Read form Dedicated Analog Block - - ○ - ○
    177 WR3A Write to Dedicated Analog Block - - ○ - ○
    178, 179 -            

    Extension Function

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    180 -            

    Others

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    181 -            
    182 COMRD Read device comment data - - ○ - ○ *
    183 -            
    184 RND Random Number Generation - - ○ - ○
    185 -            
    186 DUTY Timing pulse generation - - ○ - ○ *
    187 -            
    188 CRC Cyclic Redundancy Check - - ○ - ○
    189 HCMOV High-speed counter move - - ○ - ○
    • *Supported in FX3UC series ver. 2.20 and later

    Block Data Operation

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    190, 191 -            
    192 BK+ Block Data Addition - - ○ - ○ *
    193 BK- Block Data Subtraction - - ○ - ○ *
    194 BKCMP= Block Data Compare (S1) = (S2) - - ○ - ○ *
    195 BKCMP> Block Data Compare (S1) > (S2) - - ○ - ○ *
    196 BKCMP< Block Data Compare (S1) < (S2) - - ○ - ○ *
    197 BKCMP<> Block Data Compare (S1) ≠ (S2) - - ○ - ○ *
    198 BKCMP<= Block Data Compare (S1) ≦ (S2) - - ○ - ○ *
    199 BKCMP>= Block Data Compare (S1) ≧ (S2) - - ○ - ○ *
    • *Supported in FX3UC series ver. 2.20 and later

    Character String Control

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    200 STR BIN to Character String Conversion - - ○ - ○ *
    201 VAL Character String to BIN Conversion - - ○ - ○ *
    202 $+ Link Character Strings - - ○ - ○
    203 LEN Character String Length Detection - - ○ - ○
    204 RIGHT Extracting Character String Data from the Right - - ○ - ○
    205 LEFT Extracting Character String Data from the Left - - ○ - ○
    206 MIDR Random Selection of Character Strings - - ○ - ○
    207 MIDW Random Replacement of Character Strings - - ○ - ○
    208 INSTR Character string search - - ○ - ○ *
    209 $MOV Character String Transfer - - ○ - ○
    • *Supported in FX3UC series ver. 2.20 and later

    Data Operation 3

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    210 FDEL Deleting Data from Tables - - ○ - ○ *
    211 FINS Inserting Data to Tables - - ○ - ○ *
    212 POP Shift Last Data Read [FILO Control] - - ○ - ○
    213 SFR 16-bit data n Bit Shift Right with Carry - - ○ - ○
    214 SFL 16-bit data n Bit Shift Left with Carry - - ○ - ○
    215～219 -            
    • *Supported in FX3UC series ver. 2.20 and later

    Data Comparison

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    220～223 -            
    224 LD= Load Compare (S1) = (S2) ○ ○ ○ ○ ○
    225 LD> Load Compare (S1) > (S2) ○ ○ ○ ○ ○
    226 LD< Load Compare (S1) < (S2) ○ ○ ○ ○ ○
    227 -            
    228 LD<> Load Compare (S1) ≠ (S2) ○ ○ ○ ○ ○
    229 LD<= Load Compare (S1) ≦ (S2) ○ ○ ○ ○ ○
    230 LD>= Load Compare (S1) ≧ (S2) ○ ○ ○ ○ ○
    231 -            
    232 AND= AND Compare (S1) = (S2) ○ ○ ○ ○ ○
    233 AND> AND Compare (S1) > (S2) ○ ○ ○ ○ ○
    234 AND< AND Compare (S1) < (S2) ○ ○ ○ ○ ○
    235 -            
    236 AND<> AND Compare (S1) ≠ (S2) ○ ○ ○ ○ ○
    237 AND<= AND Compare (S1) ≦ (S2) ○ ○ ○ ○ ○
    238 AND>= AND Compare (S1) ≧ (S2) ○ ○ ○ ○ ○
    239 -            
    240 OR= OR Compare (S1) = (S2) ○ ○ ○ ○ ○
    241 OR> OR Compare (S1) > (S2) ○ ○ ○ ○ ○
    242 OR< OR Compare (S1) < (S2) ○ ○ ○ ○ ○
    243 -            
    244 OR<> OR Compare (S1) ≠ (S2) ○ ○ ○ ○ ○
    245 OR<= OR Compare (S1) ≦ (S2) ○ ○ ○ ○ ○
    246 OR>= OR Compare (S1) ≧ (S2) ○ ○ ○ ○ ○
    247～249 -            

    Data Table Operation

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    250～255 -            
    256 LIMIT Limit Control - - ○ - ○
    257 BAND Dead Band Control - - ○ - ○
    258 ZONE Zone Control - - ○ - ○
    259 SCL Scaling (Coordinate by Point Data) - - ○ - ○
    260 DABIN Decimal ASCII to BIN Conversion - - ○ - ○ *1
    261 BINDA BIN to Decimal ASCII Conversion - - ○ - ○ *1
    262～268 -            
    269 SCL2 Scaling 2 (Coordinate by X/Y Data) - - ○ - ○ *2
    • *1Supported in FX3UC series ver. 2.20 and later
    • *2Supported in FX3UC series ver. 1.30 and later

    External Device Communication

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    270 IVCK Inverter Status Check ○ ○ *1 ○ ○ ○
    271 IVDR Inverter Drive ○ ○ *1 ○ ○ ○
    272 IVRD Inverter Parameter Read ○ ○ *1 ○ ○ ○
    273 IVWR Inverter Parameter Write ○ ○ *1 ○ ○ ○
    274 IVBWR Inverter Parameter Block Write - - ○ - ○
    275 IVMC Inverter Multi Command ○ ○ *2 ○ *3 ○ ○ *3
    276 ADPRW MODBUS Read / Write ○ ○ *4 ○ *5 ○ ○ *5
    277 -            
    • *1Supported in FX3G series ver. 1.10 and later
    • *2Supported in FX3G series ver. 1.40 and later
    • *3Supported in FX3U/FX3G series ver. 2.70 and later
    • *4Supported in FX3G series ver. 1.30 and later
    • *5Supported in FX3U/FX3UC series ver. 2.40 and later

    Data Transfer 2

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    278 RBFM Divided BFM Read - - ○ - ○ *
    279 WBFM Divided BFM Write - - ○ - ○ *
    • *Supported in FX3UC series ver. 2.20 and later

    High-Speed Processing 2

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    280 HSCT High-Speed Counter Compare With Data Table - - ○ - ○
    281～289 -            

    Extension File Register Control

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    290 LOADR Load From ER - ○ ○ ○ ○
    291 SAVER Save to ER - - ○ - ○
    292 INITR Initialize R and ER - - ○ - ○
    293 LOGR Logging R and ER - - ○ - ○
    294 RWER Rewrite to ER - ○ ○ ○ ○ *
    295 INITER Initialize ER - - ○ - ○ *
    296～299 -            
    • *Supported in FX3UC series ver. 1.30 and later

    FX3U-CF-ADP Applied Instructions

    FNC No. Mnemonic Function Applicable FX PLC
    FX3S FX3G FX3U FX3GC FX3UC
    300 FLCRT File create / check - - ○ * - ○ *
    301 FLDEL File delete / CF card format - - ○ * - ○ *
    302 FLWR Data write - - ○ * - ○ *
    303 FLRD Data read - - ○ * - ○ *
    304 FLCMD FX3U-CF-ADP command - - ○ * - ○ *
    305 FLSTRD FX3U-CF-ADP status read - - ○ * - ○ *
    • *Supported in FX3U/FX3UC series ver. 2.61 and later