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Mitsubishi Electric MELSEC iQ-F Series Handbook
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Mitsubishi Electric MELSEC iQ-F Series Handbook

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Transition from MELSEC FX3G, FX3U,
FX3UC Series to MELSEC iQ-F Series Handbook

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Summary of Contents for Mitsubishi Electric MELSEC iQ-F Series

  • Page 1 Transition from MELSEC FX3G, FX3U, FX3UC Series to MELSEC iQ-F Series Handbook...
  • Page 3 SAFETY PRECAUTIONS (Read these precautions before use.) Before using this product, please read this manual and the relevant manuals introduced in this manual carefully and pay full attention to safety in order to handle the product correctly. This manual classifies the safety precautions into two categories: [ WARNING] and [ CAUTION].
  • Page 4 [DESIGN PRECAUTIONS] CAUTION ● When an inductive load such as a lamp, heater, or solenoid valve is controlled, a large current (approximately ten times greater than normal) may flow when the output is turned from off to on. Take proper measures so that the flowing current dose not exceed the value corresponding to the maximum load specification of the resistance load.
  • Page 5 [INSTALLATION PRECAUTIONS] CAUTION ● Do not touch the conductive parts of the product directly. Doing so may cause device failures or malfunctions. ● When drilling screw holes or wiring, make sure that cutting and wiring debris do not enter the ventilation slits of the PLC.
  • Page 6 [WIRING PRECAUTIONS] WARNING ● Make sure to cut off all phases of the power supply externally before attempting installation or wiring work. Failure to do so may cause electric shock or damage to the product. ● Make sure to attach the terminal cover, provided as an accessory, before turning on the power or initiating operation after installation or wiring work.
  • Page 7 [WIRING PRECAUTIONS] CAUTION ● Do not supply power to the [24+] and [24V] terminals (24 V DC service power supply) on the CPU module or extension modules. Doing so may cause damage to the product. ● Perform class D grounding (grounding resistance: 100  or less) to the grounding terminal on the CPU module or extension modules with a wire 2 mm or thicker.
  • Page 8 ● Do not disassemble or modify the PLC. Doing so may cause fire, equipment failures, or malfunctions. For repair, contact your local Mitsubishi Electric representative. ● After the first use of the SD memory card, do not insert/remove the memory card more than 500 times.
  • Page 9 [OPERATION PRECAUTIONS] CAUTION ● Construct an interlock circuit in the program so that the whole system always operates on the safe side before executing the control (for data change) of the PLC in operation. Read the manual thoroughly and ensure complete safety before executing other controls (for program change, parameter change, forcible output and operation status change) of the PLC in operation.
  • Page 10 FX3G/FX3U/FX3UC Series to the MELSEC iQ-F Series. When replacing from the MELSEC FX3G/FX3U/FX3UC Series to the MELSEC iQ-F Series, some items will be necessary to consider beforehand such as the replacement procedure, installation location, comparing specifications of the existing module and the planned replacing module, and how to replace the network.
  • Page 11 MEMO...
  • Page 12 Outline of the MELSEC iQ-F Series ........

  • Page 13: Table Of Contents

    Precautions when Converting the Projects ........... . . 58 Precautions when Replacing the Parameters .
  • Page 14 RELEVANT MANUALS MELSEC iQ-F Series Manual name <manual number> Description MELSEC iQ-F FX5S/FX5UJ/FX5U/FX5UC User's Manual(Hardware) Describes the details of hardware of the FX5 CPU module, including performance <SH-082452ENG> specifications, wiring, installation, and maintenance. MELSEC iQ-F FX5 User's Manual (Application) Describes the basic knowledge required for program design, functions of the CPU <JY997D55401>...
  • Page 15 GENERIC TERMS AND ABBREVIATIONS Unless otherwise specified, this manual uses the following generic terms and abbreviations. Generic term/abbreviation Description Analog adapter A generic term for FX5-4AD-ADP, FX5-4DA-ADP, FX5-4AD-PT-ADP, FX5-4AD-TC-ADP, and FX5-4A-ADP Battery A generic term for FX3U-32BL Bus conversion module A generic term for bus conversion modules (extension cable type) and bus conversion modules (extension connector type) Bus conversion module (extension cable type)
  • Page 16 A generic term for FX5UJ-24MR/ES, FX5UJ-24MT/ES, FX5UJ-24MT/ESS, FX5UJ-40MR/ES, FX5UJ- 40MT/ES, FX5UJ-40MT/ESS, FX5UJ-60MR/ES, FX5UJ-60MT/ES, and FX5UJ-60MT/ESS A generic term for Mitsubishi Electric Graphic Operation Terminal GOT1000 and GOT2000 series GX Works3 The product name of the software package, SWnDND-GXW3, for the MELSEC programmable controllers (The 'n' represents a version.)
  • Page 17 Designed on the concepts of outstanding performance, superior drive control and user centric programming, Mitsubishi Electric MELSEC-F Series has been reborn as the MELSEC iQ-F Series. From stand alone use to networked system applications, MELSEC iQ-F Series brings your business to the next level of industry.
  • Page 18 Substitute Models The recommended substitute models (MELSEC iQ-F Series) introduced in this manual are general substitute models considered from the number of input/output points, program capacity, product and input/output terminal type (terminal block/ connector etc.).
  • Page 19 Selection and Replacement of the Models The CPU modules and extension modules of FX3G/FX3U/FX3UC can be replaced by selecting models from the successor models FX5S/FX5UJ/FX5U/FX5UC that match the system. Select models according to the following selection table. Selection table This selection table describes main performance specifications of the FX5. For performance specifications, functions and external dimensions not described in the following table, refer to the relevant part in this manual or the user's manual of each module.

  • Page 20: Chapter 5 Replacement From Fx3U To Fx5U

    Item Required FX3G FX3U FX3UC FX5S FX5UJ FX5U FX5UC Remarks functions File registers With the battery        FX5S/FX5UJ: These products (R devices) keep function not in support an extension file register function. Check whether this function can be substituted.

  • Page 21: Outline

    • The "recommended substitute models" are described for individual FX3G and extension modules that can be replaced by MELSEC iQ-F Series models. According to usage and system configuration (connection status of the extension modules), and cases when the I/O numbers actually used are small, other models than the described “recommended substitute models”...

  • Page 22: Selection Of Substitute Models

    Selection of Substitute Models Recommended Substitute Models Recommended Substitute Models for CPU Modules The recommended substitute models of the FX5S compatible with the FX3G are introduced. Please consider to replace the currently used CPU modules to the following recommended substitute models. ■List of recommended substitute models (CPU modules) for FX3G ...
  • Page 23 Recommended Substitute Models for Extension Devices The following list shows the extension devices that will be necessary to replace simultaneously when replacing the CPU module from FX3G to FX5S. For products without a substitute model of the same function, check the contents described in the Special notes and please consider system reconfiguration.
  • Page 24 Extension device Recommended substitute models Special notes Device name Model name Model name Extension device FX3U-1PSU-5V No recommended substitute models Extension modules cannot be connected to the FX5S. If an extension module is needed, select the FX5UJ. FX3U-4AD FX5-4AD-ADP The wiring must be replaced from the screw terminal block to the European terminal block.
  • Page 25 Battery The FX5S CPU module cannot use a battery. The programs and devices of the FX5S CPU module are maintained in the built-in flash memory of the CPU. Note that file registers (R) of the FX5S CPU module cannot be latched. (Page 106 Device Replacement List) The FX5S CPU module supports an extension file register function.

  • Page 26: Precautions Regarding The Hardware

    Precautions Regarding the Hardware Comparison of the FX3G and FX5S and Precautions for Replacement The following list shows precautions of the hardware. Check details in the manuals of each model when replacing existing models. ■Differences and precautions regarding the main hardware of the FX3G and FX5S Item Difference Precautions...
  • Page 27 • FX5S External color: Munsell 0.6B7.6/0.2 2-I4.5 mounting hole Unit: mm The terminal block uses M3 terminal screws. A 35-mm width DIN rail can be installed. Model name W: mm W1: mm Weight: kg FX5S-30M Approx. 0.45 FX5S-40M Approx. 0.55 FX5S-60M...
  • Page 28 Conversion of the Projects When converting FX3G projects to FX5S projects, use GX Works3. After converting the projects, it may be necessary to adjust the programs (instructions, devices) and parameters. Operation Method for Replacing Projects To convert FX3G projects to FX5S projects, perform operations in GX Works3. Conversion of the projects Write with FX5S CPU module...
  • Page 29 Operating procedure Start up GX Works3. Open the FX3G project. Select [Project]  [Open Other Format File]  [GX Works2 Format]  [Open Project]  Project (***.gxw). The following display is shown. A selection screen of the following new module type is shown. Select the new module type and press the [Execute] button.
  • Page 30 Check the contents of the model change result in the “Output window”. Output window Precautions • When projects are converted, the program instructions and devices may be changed. Check the contents of the project. Parameters other than the CC-Link network parameters will be deleted.
  • Page 31 Precautions when Converting the Projects • When converting FX3G projects using GX Works3, be careful because the program (instructions and devices) may be changed. • When converting projects, the number of steps may increase and writing to the FX5S may be impossible. Check the number of steps after replacement.
  • Page 32 Set the function of the high-speed counters used with the FX3G. Select the input comparison enable/disable of the counter device and preset input compatible with the FX3 Series, and select the control switch. ■Changing the Program Change the high-speed counter program by referring to the following program example. [Example of program] K10000 C235...
  • Page 33 Precautions when Using the Routine Timer When the routine timer (T192 to T199) is used with the FX3G, they will not operate just by switching to the FX5S. The routine timer must be set by the parameter. For the setting procedure, refer to the following. ■Parameter Setting Procedure of the Routine Timer Set the use of the routine timer and the leading device number.
  • Page 34 • FX3G-40M and FX3G-60M A communication function expansion board and a special communication adapter can be used to connect up to two channels of serial ports. The configurable combinations are shown below. [Configuration example 1] [Configuration example 2] Using a communication function expansion board and a Using two special communication adapters special communication adapter at the same time CH2: Special communication adapter...
  • Page 35 Replacement of the PLC The main points to consider during replacement of the CPU module and extension modules are explained below. For details of each item, check the reference pages in this document, and related manuals such as the PLC Hardware Manual and Programming Manual.
  • Page 36 Replacement from FX3G to FX5UJ Outline The FX5UJ is equipped with communication, high-speed input/output, etc. and can easily be expanded with expansion boards and expansion adapters. Up to eight I/O modules and FX5 intelligent function modules (combined) can be connected. The procedures and points for replacing an existing model with the FX5UJ are shown below.
  • Page 37 Selection of Substitute Models Recommended Substitute Models Recommended Substitute Models for CPU Modules The recommended substitute models of the FX5UJ compatible with the FX3G are introduced below. Please consider to replace the currently used CPU modules to the following recommended substitute models. ■List of recommended substitute models (CPU modules) for FX3G ...
  • Page 38 Recommended Substitute Models for Extension Devices The following list shows the extension devices that will be necessary to replace simultaneously when replacing the CPU module from FX3G to FX5UJ. For products without a substitute model of the same function, check the contents described in the Special notes and please consider system reconfiguration.
  • Page 39 Extension device Recommended substitute models Special notes Device name Model name Model name Extension device FX3U-1PSU-5V FX5-1PSU-5V FX3U-4AD FX5-4AD The wiring must be replaced from the screw terminal block to the European terminal block. FX3U-4DA FX5-4DA FX3U-4LC FX5-4LC FX2N-2AD FX5-4AD FX2N-2DA FX5-4DA FX2N-4AD...
  • Page 40 Extension devices that can be reused when the CPU module is replaced to FX5UJ The following extension devices can be used even when the CPU module is replaced (FX3G  FX5UJ). ■Extension devices that can be used even when the CPU module is replaced from the FX3G to FX5UJ Terminal module FX-16E-TB, FX-32E-TB, FX-16EX-A1-TB, FX-16EYR-TB, FX16EYS-TB, FX-16EYT-TB...
  • Page 41 Precautions Regarding the Hardware Comparison of FX3G and FX5UJ and Precautions for Replacement The following list shows precautions of the hardware. Check details in the manuals of each model when replacing existing models. ■Difference and precautions regarding the main hardware of FX3G and FX5UJ Item Difference Precautions...
  • Page 42 • FX5UJ External color: Munsell 0.6B7.6/0.2 2-φ4.5-diam mounting hole Unit: mm The terminal block uses M3 terminal screws 35 mm width DIN rail can be installed W1 (mounting hole pitch) Model name W: mm W1: mm Weight: kg FX5UJ-24M Approx. 0.55 FX5UJ-40M...
  • Page 43 Conversion of the Projects When converting FX3G projects to FX5UJ projects, use GX Works3. After converting the projects, it may be necessary to adjust the programs (instructions, devices) and parameters. Operation Method for Replacing Projects To convert FX3G projects to FX5UJ projects, perform operations in GX Works3. Conversion of the projects Write with GX Works3 FX5UJ CPU module...
  • Page 44 The following display is shown. A selection screen of the following new module type is shown. Select the new module type and press the [Execute] button. When conversion is completed, the following message is shown. Check the contents of the model change result in the “Output window”. Output window Precautions •...
  • Page 45 Set the model name of the CPU for the system parameter. [System Parameter]  [I/O Assignment Setting]  Model Name Set the model name of the CPU. Perform conversion. [Convert]  [Rebuild All] Precautions when Converting the Projects • When converting FX3G projects using GX Works3, be careful because the program (instructions and devices) may be changed.
  • Page 46 Precautions when Replacing Other Functions Precautions when Using the High-speed Counters When the high-speed counters (C235 to C255) are used with the FX3G, they will not operate just by switching to the FX5UJ. It is necessary to set the FX3 Series compatible high-speed counters and change the program by the parameter. For the setting procedure, refer to the following.
  • Page 47 ■Changing the Program Change the high-speed counter program by referring to the following program example. [Example of program] K10000 C235 C235 Y001 Change the program. UDCNTF LC35 K10000 LC35 Y001 Precautions when Using the Routine Timer When the routine timer (T192 to T199) is used with the FX3G, it will not operate just by switching to the FX5UJ. The routine timer must be set by the parameter.
  • Page 48 Serial Communication Channel Assignment (RS-485, RS-232C) When the FX3G is replaced with the FX5UJ, the communication channel assignments that can be used change. Change the communication channels specified with instructions and parameter settings so that these channels match the specifications. ■FX3G communication channel assignment •...
  • Page 49 ■FX5UJ communication channel assignment A communication board and a communication adapter can be used to connect up to two channels of serial ports. The communication channel assignments are fixed regardless of the system configuration. The configurable combinations are shown below. [Configuration example 1] [Configuration example 2] Using a communication board and a communication adapter...
  • Page 50 Replacement of the PLC The main points to consider during replacement of the CPU module and extension modules are explained below. For details of each item, check the reference pages in this document, and related manuals such as the PLC Hardware Manual and Programming Manual.
  • Page 51 Replacement from FX3U to FX5UJ Outline The FX5UJ is equipped with communication, high-speed input/output, etc. and can easily be expanded with expansion boards and expansion adapters. Up to eight I/O modules and FX5 intelligent function modules (combined) can be connected. The procedures and points for replacing an existing model with the FX5UJ are shown below.
  • Page 52 Selection of Substitute Models Recommended Substitute Models Recommended Substitute Models for CPU Modules The recommended substitute models of FX5UJ compatible with FX3U are introduced. Please consider to replace the currently used CPU modules to the following recommended substitute models. ■List of recommended substitute models (CPU modules) for FX3U  FX5UJ replacement FX3U Series Recommended substitute models Special notes...
  • Page 53 Recommended Substitute Models for Extension Devices The following list shows the extension devices that will be necessary to replace simultaneously when replacing the CPU module from FX3U to FX5UJ. For products without a substitute model of the same function, check the contents described in the Special notes and please consider system reconfiguration.
  • Page 54 Extension device Recommended substitute models Special notes Device name Model name Model name Extension device FX3U-1PSU-5V FX5-1PSU-5V FX2N-4AD-TC FX5-4AD-TC-ADP The wiring must be replaced from the screw terminal block to the European terminal block. FX2N-4AD-PT FX5-4AD-PT-ADP FX2N-5A FX5-4AD+FX5-4DA The wiring must be replaced from the screw terminal block to the spring clamp terminal block.
  • Page 55 Extension device Recommended substitute models Special notes Device name Model name Model name Expansion adapter FX3U-232ADP(-MB) FX5-232ADP FX3U-485ADP(-MB) FX5-485ADP FX3U-ENET-ADP No recommended substitute models Ethernet port is built into FX5UJ CPU module. FX3U-3A-ADP FX5-4A-ADP FX3U-4AD-ADP FX5-4AD-ADP FX3U-4DA-ADP FX5-4DA-ADP FX3U-4AD-PT-ADP FX5-4AD-PT-ADP FX3U-4AD-PTW-ADP FX5-4AD-PT-ADP FX3U-4AD-PNK-ADP...
  • Page 56 Precautions Regarding the Hardware Comparison of FX3U and FX5UJ and Precautions for Replacement The following list shows precautions of the hardware. Check details in the manuals of each model when replacing existing models. ■Difference and precautions regarding the main hardware of FX3U and FX5UJ Item Difference Precautions...
  • Page 57 • FX5UJ External color: Munsell 0.6B7.6/0.2 2-φ4.5-diam mounting hole Unit: mm The terminal block uses M3 terminal screws 35 mm width DIN rail can be installed W1 (mounting hole pitch) Model name W: mm W1: mm Weight: kg FX5UJ-24M Approx. 0.55 FX5UJ-40M...

  • Page 58: Conversion Of The Projects

    Conversion of the Projects When converting FX3U projects to FX5UJ projects, use GX Works3. After converting the projects, it may be necessary to adjust the programs (instructions, devices) and parameters. Operation Method for Replacing Projects To convert FX3U projects to FX5UJ projects, perform operations in GX Works3. Conversion of the projects Write with GX Works3 FX5UJ CPU module...
  • Page 59 The following display is shown. A selection screen of the following new module type is shown. Select the new module type and press the [Execute] button. When conversion is completed, the following message is shown. Check the contents of the model change result in the “Output window”. Output window Precautions •...

  • Page 60: Precautions When Converting The Projects

    Set the model name of the CPU for the system parameter. [System Parameter]  [I/O Assignment Setting]  Model Name Set the model name of the CPU. Perform conversion. [Convert]  [Rebuild All] Precautions when Converting the Projects • When converting FX3U projects using GX Works3, be careful because the program (instructions and devices) may be changed.

  • Page 61: Precautions When Replacing Other Functions

    Precautions when Replacing Other Functions Precautions when Using the High-speed Counters When the high-speed counters (C235 to C255) are used with the FX3U, they will not operate just by switching to the FX5UJ. It is necessary to set the FX3 Series compatible high-speed counters and change the program by the parameter. For the setting procedure, refer to the following.
  • Page 62 ■Changing the Program Change the high-speed counter program by referring to the following program example. [Example of program] K10000 C235 C235 Y001 Change the program. UDCNTF LC35 K10000 LC35 Y001 Precautions when Using the Routine Timer When the routine timer (T192 to T199) is used with the FX3U, it will not operate just by switching to the FX5UJ. The routine timer must be set by the parameter.
  • Page 63 Serial Communication Channel Assignment (RS-485, RS-232C) When the FX3U is replaced with the FX5UJ, the communication channel assignments that can be used change. Change the communication channels specified with instructions and parameter settings so that these channels match the specifications. ■FX3U communication channel assignment A communication function expansion board and a special communication adapter can be used to connect up to two channels of serial ports.

  • Page 64: Replacement Of The Plc

    Replacement of the PLC The main points to consider during replacement of the CPU module and extension modules are explained below. For details of each item, check the reference pages in this document, and related manuals such as the PLC Hardware Manual and Programming Manual.

  • Page 65: Outline

    Replacement from FX3U to FX5U Outline The FX5U is equipped with analog functions, communication, high-speed input/output, etc. and can easily be expanded with expansion boards and expansion adapters. The high-speed system bus communication brings out the maximum performance of extension modules equipped with intelligent functions. The procedures and points for replacing an existing model with the FX5U are shown below.

  • Page 66: Selection Of Substitute Models

    Selection of Substitute Models Recommended Substitute Models Recommended Substitute Models for CPU Modules The recommended substitute models of FX5U compatible with FX3U are introduced. Please consider to replace the currently used CPU modules to the following recommended substitute models. ■List of recommended substitute models (CPU modules) for FX3U  FX5U replacement FX3U Series Recommended substitute models Special notes...
  • Page 67 FX3U Series Recommended substitute models Special notes Device name Model name Model name CPU module FX3U-64MT/DS FX5U-64MT/DS FX3U-64MT/DSS FX5U-64MT/DSS FX3U-80MR/DS FX5U-80MR/DS FX3U-80MT/DS FX5U-80MT/DS FX3U-80MT/DSS FX5U-80MT/DSS FX3U-32MR/UA1 No recommended substitute models FX3U-64MR/UA1 No recommended substitute models Recommended Substitute Models for Extension Devices The following list shows the extension devices that will be necessary to replace simultaneously when replacing the CPU module from FX3U to FX5U.
  • Page 68 Extension device Recommended substitute models Special notes Device name Model name Model name Extension I/O FX2N-48ER-D FX5-32ER/DS+FX5-16ER/ES FX2N-48ER-DS FX5-32ER/DS+FX5-16ER/ES FX2N-48ET-D FX5-32ET/DS+FX5-16ET/ES FX2N-48ET-DSS FX5-32ET/DSS+FX5-16ET/ESS FX2N-48ER-UA1/UL No recommended substitute models Extension device FX3U-1PSU-5V FX5-1PSU-5V FX2N-4AD-TC FX5-4AD-TC-ADP The wiring must be replaced from the screw terminal block to the European terminal block.
  • Page 69 Extension device Recommended substitute models Special notes Device name Model name Model name Expansion adapter FX3U-232ADP(-MB) FX5-232ADP FX3U-485ADP(-MB) FX5-485ADP FX3U-ENET-ADP No recommended substitute models Ethernet port is built into FX5U CPU module. FX3U-3A-ADP FX5-4A-ADP FX3U-4AD-ADP FX5-4AD-ADP FX3U-4DA-ADP FX5-4DA-ADP FX3U-4AD-PT-ADP FX5-4AD-PT-ADP FX3U-4AD-PTW-ADP FX5-4AD-PT-ADP FX3U-4AD-PNK-ADP...

  • Page 70: Precautions Regarding The Hardware

    Precautions Regarding the Hardware Comparison of FX3U and FX5U and Precautions for Replacement The following list shows precautions of the hardware. Check details in the manuals of each model when replacing. ■Difference and precautions regarding the main hardware of FX3U and FX5U Item Difference Precautions...
  • Page 71 • FX5U External color: Munsell 0.6B7.6/0.2 2-φ4.5-diam mounting hole (32M) Unit: mm 4-φ4.5-diam mounting hole (64M, 80M) The terminal block uses M3 terminal There is no mounting hole * for 32M. screws 35 mm width DIN rail can be installed W1 (mounting hole pitch) Model name W: mm...

  • Page 72: Conversion Of The Projects

    Conversion of the Projects When converting FX3U projects to FX5U projects, use GX Works3. After converting the projects, it may be necessary to adjust the programs (instructions, devices) and parameters. For the replacement of the SFC program, refer to Page 116 Conversion of the SFC Program. Operation Method for Replacing Projects To convert FX3U projects to FX5U projects, perform operations in GX Works3.
  • Page 73 The following display is shown. A selection screen of the following new module type and conversion method is shown. Select the new module type and conversion method, and press the [Execute] button. • The display contents may vary depending on the version of the software. •...

  • Page 74: Precautions When Converting The Projects

    Precautions • For GX Works3 versions earlier than 1.025B, the program must be changed from “No Execution Type”. (Change to Scan, etc.) • When projects are converted, the program instructions and devices may be changed. Check the contents of the project. Parameters other than the network parameter of CC-Link will be deleted.

  • Page 75: Precautions When Replacing Other Functions

    Precautions when Replacing Other Functions Precautions when Using the High-speed Counters When the high-speed counters (C235 to C255) are used with the FX3U, they will not operate just by switching to the FX5U. It is necessary to set the FX3 Series compatible high-speed counters and change the program by the parameter. For the setting procedure, refer to the following.
  • Page 76 ■Changing the Program Change the high-speed counter program by referring to the following program example. [Example of program] K10000 C235 C235 Y001 Change the program. UDCNTF LC35 K10000 LC35 Y001 Precautions when Using the Routine Timer When the routine timer (T192 to T199) is used with the FX3U, it will not operate just by switching to the FX5U. The routine timer must be set by the parameter.
  • Page 77 Serial Communication Channel Assignment (RS-485, RS-232C) When the FX3U is replaced with the FX5U, the communication channel assignments that can be used change. Change the communication channels specified with instructions and parameter settings so that these channels match the specifications. ■FX3U communication channel assignment A communication function expansion board and a special communication adapter can be used to connect up to two channels of serial ports.

  • Page 78: Replacement Of The Plc

    Replacement of the PLC The main points to consider during replacement of the CPU module and extension modules are explained below. For details of each item, check the reference pages in this document, and related manuals such as the PLC Hardware Manual and Programming Manual.
  • Page 79 Replacement from FX3UC to FX5UC Outline The FX5UC has compact and easy-to-use compatible extension modules, which makes downsizing of various devices possible. Connect to the FX5 and FX3 extension modules with the variety of conversion modules available. The procedures and points for replacing an existing model with the FX5UC are shown below. Use this information to consider replacing existing models.
  • Page 80 Selection of Substitute Models Recommended Substitute Models Recommended Substitute Models for CPU Modules The recommended substitute models of FX5UC compatible with FX3UC are introduced below. Please consider to replace the currently used CPU modules to the following recommended substitute models. ■List of recommended substitute models (CPU modules) for FX3UC ...
  • Page 81 Recommended Substitute Models for Extension Devices The following list shows the extension devices that will be necessary to replace simultaneously when replacing the CPU module from FX3UC to FX5UC. For products without a substitute model of the same function, check the contents described in the Special notes and please consider system reconfiguration.
  • Page 82 Extension device Recommended substitute models Special notes Device name Model name Model name Extension device FX2NC-1HC FX3U-2HC The European terminal block must be replaced to the 40-pin connector. FX2N-4AD-TC FX5-4AD-TC-ADP The wiring must be replaced from the screw terminal block to the European terminal block. FX2N-4AD-PT FX5-4AD-PT-ADP FX3UC-4AD...
  • Page 83 Extension device Recommended substitute models Special notes Device name Model name Model name Option FX2NC-CNV-IF FX5-CNV-IFC FX3UC-1PS-5V FX5-C1PS-5V FX3U-FLROM-16 No recommended substitute models Substituted by an SD memory card. FX3U-FLROM-64 No recommended substitute models Substituted by an SD memory card. FX3U-FLROM-64L No recommended substitute models Substituted by an SD memory card.
  • Page 84 Precautions Regarding the Hardware Comparison of FX3UC and FX5UC and Precautions for Replacement The following list shows precautions of the hardware. Check details in the manuals of each models when replacing. ■Difference and precautions regarding the main hardware of FX3UC and FX5UC Item Difference Precautions...
  • Page 85 ■External dimension drawing There is some difference in the external dimension of FX3UC and the successor model FX5UC. Be careful when replacing the modules. • FX3UC External color: Munsell 0.08GY/7.64/0.81 Unit: mm 35 mm width DIN rail can be installed [Accessories] FX2NC-100MPCB power cable FX2NC-100BPCB power cable (only FX3UC-MT/D)
  • Page 86 • FX5UC External color: Munsell 0.6B7.6/0.2 Unit: mm 35 mm width DIN rail can be installed [Accessories] FX2NC-100MPCB power cable FX2NC-100BPCB power cable (only FX5UC-MT/D) 89.1 Model name W: mm Weight: kg FX5UC-32MT/D, DSS 42.1 Approx. 0.20 FX5UC-64MT/D, DSS 62.2 Approx.
  • Page 87 Conversion of the Projects When converting FX3UC projects to FX5UC projects, use GX Works3. After converting the projects, it may be necessary to adjust the programs (instructions, devices) and parameters. For the replacement of the SFC program, refer to Page 116 Conversion of the SFC Program. Operation Method for Replacing Projects To convert FX3UC projects to FX5UC projects, perform operations in GX Works3.
  • Page 88 The following display is shown. A selection screen of the following new module type and conversion method is shown. Select the new module type and conversion method, and press the [Execute] button. • The display contents may vary depending on the version of the software. •...
  • Page 89 Precautions • For GX Works3 versions earlier than 1.025B, the program must be changed from “No Execution Type”. (Change to Scan, etc.) • When projects are converted, the program instructions and devices may be changed. Check the contents of the project. Parameters other than the network parameter of CC-Link will be deleted.
  • Page 90 Precautions when Replacing Other Functions Precautions when Using the High-speed Counters When the high-speed counters (C235 to C255) are used with the FX3UC, they will not operate just by switching to the FX5UC. It is necessary to set the FX3 Series compatible high-speed counters and change the program by the parameter. For the setting procedure, refer to the following.
  • Page 91 ■Changing the Program Change the high-speed counter program by referring to the following program example. [Example of program] K10000 C235 C235 Y001 Change the program. UDCNTF LC35 K10000 LC35 Y001 Precautions when Using the Routine Timer When the routine timer (T192 to T199) is used with the FX3UC, it will not operate just by switching to the FX5UC. The routine timer must be set by the parameter.
  • Page 92 Serial Communication Channel Assignment (RS-485, RS-232C) When the FX3UC is replaced with the FX5UC, the communication channel assignments that can be used change. Change the communication channels specified with instructions and parameter settings so that these channels match the specifications. ■FX3UC communication channel assignment Special communication adapters can be used to connect up to two channels of serial ports.
  • Page 93 Replacement of the PLC The main points to consider during replacement of the CPU module and extension devices are explained below. For details of each item, check the reference pages in this document, and related manuals such as the PLC Hardware Manual and Programming Manual.

  • Page 94: Appendix

    APPENDIX When converting FX3S/FX3G/FX3U/FX3UC projects using GX Works3, be careful because the program (instructions and devices) may be changed. When converting projects, the number of steps may increase and writing to the FX5 CPU module may be impossible. Check the number of steps after replacement. Characters used for the label name in GX Works2 may correspond to reserved words or illegal characters in GX Works3.
  • Page 95  FX3 Series MELSEC iQ-F Remarks  IVCK IVCK SM4095 is added to parameters of instructions. Change to an  IVDR IVDR appropriate device or label.  IVRD IVRD  IVWR IVWR  IVBWR IVBWR  IVMC IVMC  ADPRW ADPRW ...
  • Page 96 • If a syntax error exists • If the program exceeds 2048 characters If there is an instruction that is not supported by the MELSEC iQ-F Series in the program created using GX Works2, the instruction will be changed to the instruction using SM4095/SD4095.
  • Page 97 Instruction Replacement List of Structured Ladder to FBD/LD ■Replaced instructions The following instructions will be replaced to GX Works3 compatible instructions when converting the project.  FX3 Series MELSEC iQ-F Remarks  OUT_C_32 OUT_C   OUT_T OUT_T, OUTH, OUTHS When a label is used instead of a •...
  • Page 98  FX3 Series MELSEC iQ-F Remarks   DBKCMP>P DBKCMP_GTP   BKCMP< BKCMP_LT   BKCMP<P BKCMP_LTP   DBKCMP< DBKCMP_LT   DBKCMP<P DBKCMP_LTP   BKCMP<> BKCMP_NE   BKCMP<>P BKCMP_NEP   DBKCMP<> DBKCMP_NE   DBKCMP<>P DBKCMP_NEP ...
  • Page 99  FX3 Series MELSEC iQ-F Remarks   OR<= OR_LE  ORD<= ORD_LE    OR>= OR_GE   ORD>= ORD_GE  IVCK IVCK SM4095 is added to parameters of instructions. Change to an  IVDR IVDR appropriate device or label. ...
  • Page 100 ■Instructions that are not supported by GX Works3 The following instructions are not supported by GX Works3. The instructions are left as is when converting the projects, but an error will occur when compiling.  FX3 Series MELSEC iQ-F Remarks ...
  • Page 101  FX3 Series MELSEC iQ-F Remarks  WR3AP WR3AP Correct the program to use TOP instruction.   COMRD COMRD   COMRDP COMRDP  DHSCT DHSCT Set the high-speed comparison table or multi-point output high-speed comparison table in the module parameter “High-speed I/O”.
  • Page 102 Instruction Replacement List of ST Programs ■Replaced instructions The following instructions will be replaced to GX Works3 compatible instructions when converting the project.  FX3 Series MELSEC iQ-F Remarks  OUT_T OUT_T, OUTH, OUTHS When a label is used instead of a •...
  • Page 103  FX3 Series MELSEC iQ-F Remarks   STR_TO_BOOL_E STRING_TO_BOOL_E  STR_TO_INT STRING_TO_INT    STR_TO_INT_E STRING_TO_INT_E   STR_TO_DINT STRING_TO_DINT  STR_TO_DINT_E STRING_TO_DINT_E    STR_TO_REAL STRING_TO_REAL  STR_TO_REAL_E STRING_TO_REAL_E    STR_TO_TIME STRING_TO_TIME  STR_TO_TIME_E STRING_TO_TIME_E ...
  • Page 104  FX3 Series MELSEC iQ-F Remarks  Create the program using the input device (X).  DTKY DTKY   DHKY DHKY  ARWS ARWS      Correct the program to use RS2 instruction.  VRRD VRRD ...
  • Page 105  FX3 Series MELSEC iQ-F Remarks  INITRP INITRP Correct the program to use FMOV instruction. Correct the program to collectively initialize (clear to 0) the required number of points of the file register (R).  LOGR LOGR Use the data logging function. Save the collected data to the SD ...

  • Page 106: Appendix 2 Precautions For Instruction Replacement

    Instructions/FB/FUN that are not supported by the MELSEC iQ-F Series For the instructions/FB/FUN that are not supported by the MELSEC iQ-F Series, refer to the following manual to correct the program so that the instructions/FB/FUN will be equivalent to the one in the manual.
  • Page 107 Correction of structured ladder/FBD program • The method of thinking for execution order is different for the GX Works2 structured ladder/FBD and GX Works3 FBD/LD language. Display the execution order and check the contents. • The operation of the return element is different for the GX Works2 structured ladder/FBD and GX Works3 FBD/LD language.

  • Page 108: Appendix 3 Device Replacement List

    Appendix 3 Device Replacement List The device lists when converting FX3S/FX3G/FX3U/FX3UC projects to MELSEC iQ-F projects are shown below. Actions such as replacing the device will be necessary according to the content of precautions. FX3U, FX3UC  FX5U, FX5UC, and FX5UJ Device Replacement List The device list when converting FX3U and FX3UC projects to MELSEC iQ-F (FX5U, FX5UC, and FX5UJ) projects is shown below.
  • Page 109 Device name FX3U, FX3UC After Precautions conversion to In the case of FX5U and In the case of FX5UJ the FX5U, FX5UC FX5UC, or FX5UJ   Timer 100 ms OUT T OUT T T0 to T191 T0 to T191 100 ms OUT T OUT T...
  • Page 110 Device name FX3U, FX3UC After Precautions conversion to In the case of FX5U and In the case of FX5UJ the FX5U, FX5UC FX5UC, or FX5UJ High-speed 1-phase 1- C235 to C245 C235 to C245 Setting of the FX3 Series Setting of the FX3 Series counter count input compatibility assignment and...
  • Page 111 When  is 2 to 9, it will be replaced When  is 2 to 9, it will be replaced with P4095. with P4095. The MELSEC iQ-F Series does not The MELSEC iQ-F Series does not support the delay interrupt function. support the delay interrupt function.
  • Page 112 FX3G  FX5UJ Device Replacement List The device list when converting FX3G projects to FX5UJ projects is shown below. Actions such as replacing the device will be necessary according to the content of precautions. Device name FX3G After conversion to the Precautions FX5UJ ...
  • Page 113 Device name FX3G After conversion to the Precautions FX5UJ Counter 16-bit up counter for C0 to C15 C0 to C15  general use  16-bit up counter for C16 to C199 C16 to C199 keep  32-bit bidirectional C200 to C219 LC0 to LC19 counter for general ...
  • Page 114  = 1: Rise interrupt  = 0: Fall interrupt When  is 2 to 9, it will be replaced with P4095. The MELSEC iQ-F Series does not support the delay interrupt function. (There is no recommended substitute function.) Timer interrupt I6...
  • Page 115 FX3S  FX5S, FX5UJ, FX5U, and FX5UC Device Replacement List The device list when converting FX3S projects to MELSEC iQ-F (FX5S, FX5UJ, FX5U, and FX5UC) projects is shown below. Actions such as replacing the device will be necessary according to the content of precautions. Device name FX3S After conversion to...
  • Page 116 Device name FX3S After conversion to Precautions the FX5S, FX5UJ, FX5U, or FX5UC High-speed 1-phase 1-count input C235 to C245 C235 to C245 Setting of the FX3 Series compatibility assignment counter and replacement of the device number are 1-phase 2-count input C246 to C250 C246 to C250 necessary by the parameter.

  • Page 117: Appendix 4 Precautions For Device Replacement

    If S device is set to the device memory data or device initial data created using GX Works2, it will be deleted. If there is a device that is not supported by the MELSEC iQ-F Series in the program created using GX Works2, the device will be changed to SM4095/SD4095.

  • Page 118: Appendix 5 Conversion Of The Sfc Program

    Appendix 5 Conversion of the SFC Program Below are described the procedure and precautions for converting FX3U/FX3UC projects created with the SFC program into FX5U/FX5UC projects. After converting the projects, it may be necessary to adjust the programs (instructions, devices) and parameters. This chapter describes the SFC program operations and specifications.

  • Page 119: Operation Method For Replacing Projects

    Operation Method for Replacing Projects To convert FX3U/FX3UC projects to FX5U/FX5UC projects, perform operations in GX Works3. Conversion of the Projects FX5U CPU module FX5UC CPU module Write with GX Works3 GX Works2 format GX Works3 format project data project data (FX3U/FX3UC) (FX5U/FX5UC) Conversion...
  • Page 120 The following display is shown. A selection screen of the following new module type and conversion method is shown. Select the new module type and conversion method, and press the [Execute] button. • The display contents may vary depending on the version of the software. •...
  • Page 121 Precautions When projects are converted, the program instructions and devices may be changed. Check the contents of the project. Parameters other than the network parameter of CC-Link will be deleted. Set the parameters if necessary. *1 For the network parameter of CC-Link, refer to Page 120 Precautions when Replacing the Parameters. Set the model name of the CPU for the system parameter.

  • Page 122: Precautions When Converting The Projects

    Precautions when Converting the Projects The number of simultaneously activated steps varies between FX3U/FX3UC and FX5U/FX5UC. Item FX3U/FX3UC FX5U/FX5UC Number of simultaneously activated steps • Up to 512 steps in 1 block • Up to 128 steps in 1 block •...
  • Page 123 • When a ladder block is contained in an FX3U/FX3UC project, an initial execution type program is automatically added. The initial execution type program is created to start the SFC block that takes over the content of the ladder block. GX Works2 GX Works3 (after reading another format) Initial execution type program...
  • Page 124 • After replacement with GX Works3, a jump to the initial steps (S0 to S9) of other blocks will be replaced with a block start step (without end check) [BS] + unconditional transition + an end step. The block start step will be added as the maximum step No.
  • Page 125 MEMO APPX Appendix 5 Conversion of the SFC Program...

  • Page 126: Index

    INDEX ..... . 106,113 Auxiliary relay ....109 Character string constant .
  • Page 127 MEMO...

  • Page 128: Revisions

    Japanese manual number: JY997D66101P This manual confers no industrial property rights of any other kind, nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual.

  • Page 129: Warranty

    WARRANTY Please confirm the following product warranty details before using this product. 1. Gratis Warranty Term and Gratis Warranty 2. Onerous repair term after discontinuation of production Range If any faults or defects (hereinafter "Failure") found to be Mitsubishi shall accept onerous product repairs for the responsibility of Mitsubishi occurs during use of the seven (7) years after production of the product is product within the gratis warranty term, the product shall...

  • Page 130: Trademarks

    TRADEMARKS Anywire and AnyWireASLINK are either registered trademarks or trademarks of Anywire Corporation. Phillips is a registered trademark of Phillips Screw Company. The company names, system names and product names mentioned in this manual are either registered trademarks or trademarks of their respective companies. ...
  • Page 132 Manual number: JY997D66201P HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN NAGOYA WORKS: 1-14, YADA-MINAMI 5-CHOME, HIGASHI-KU, NAGOYA 461-8670, JAPAN When exported from Japan, this manual does not require application to the Ministry of Economy, Trade and Industry for service transaction permission. Specifications subject to change without notice.

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