Mitsubishi MELSEC-AnS Series Handbook
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Mitsubishi MELSEC-AnS Series Handbook

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  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS (Read these precautions before using this product.) Before using this product, please read this handbook and the relevant manuals introduced in this handbook carefully and pay full attention to safety to handle the product correctly. The precautions given in this handbook are concerned with this product only. For the safety precautions of the programmable controller system, refer to the user's manual for the CPU module used.
  • Page 4 [Design Precautions] CAUTION ● Do not install the control lines or communication cables together with the main circuit lines or power cables. Keep a distance of 100mm or more between them. Failure to do so may result in malfunction due to noise. [Installation Precautions] WARNING ●...
  • Page 5 [Wiring Precautions] CAUTION ● Use applicable solderless terminals and tighten them within the specified torque range. If any spade solderless terminal is used, it may be disconnected when a terminal block screw comes loose, resulting in failure. ● Connectors for external devices must be crimped or pressed with the tool specified by the manufacturer, or must be correctly soldered.
  • Page 6 [Startup and Maintenance Precautions] WARNING ● Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction. ● Shut off the external power supply (all phases) used in the system before cleaning the module or retightening the terminal block screws.

  • Page 7: Conditions Of Use For The Product

    PRODUCT in one or more of the Prohibited Applications, provided that the usage of the PRODUCT is limited only for the specific applications agreed to by Mitsubishi and provided further that no special quality assurance or fail-safe, redundant or other safety features which exceed the general specifications of the PRODUCTs are required.

  • Page 8: Revisions

    This handbook confers no industrial property rights or any 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 handbook.

  • Page 9: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ..........................A - 1 CONDITIONS OF USE FOR THE PRODUCT ....................A - 5 REVISIONS ..............................A - 6 GENERIC TERMS AND ABBREVIATIONS .....................A - 9 CHAPTER 1 INTRODUCTION 1 - 1 to 1 - 3 Modules Targeted for Replacement ....................1 - 1 General Precautions ........................
  • Page 10 The manuals and catalogues for our products, products manufactured by Mitsubishi Electric Engineering Co., Ltd., and Mitsubishi Electric System & Service Co., Ltd. are shown in Appendix of each handbook for transition.

  • Page 11: Generic Terms And Abbreviations

    Generic term/abbreviation Description Series A series The abbreviation for large types of Mitsubishi MELSEC-A series programmable controllers AnS series The abbreviation for small types of Mitsubishi MELSEC-A series programmable controllers A/AnS series A generic term for A series and AnS series...

  • Page 12: Chapter 1 Introduction

    INTRODUCTION INTRODUCTION 1.1 Modules Targeted for Replacement This handbook describes how to replace the following communication modules. • AnS series computer link module: Refer to CHAPTER 2. • QnAS series serial communication module: Refer to CHAPTER 2. (1) Replacing AnS series computer link modules and QnAS series serial communication modules (a) AnS series computer link modules LJ71C24...
  • Page 13 INTRODUCTION (b) QnAS series serial communication modules LJ71C24 Communications via A1SJ71QC24N1 LJ71C24 RS-232 :1ch RS-232 RS-422/485 :1ch A1SJ71QC24N1-R2 LJ71C24-R2 LJ71C24-R2 RS-232 :2ch A1SJ71QC24N1 RS-232 :1ch RS-422/485 :1ch A1SJ71QC24N1-R2 RS-232 :2ch Communications via LJ71C24 RS-422/485 RS-232 :1ch A1SJ71QC24N1 LJ71C24 RS-422/485 :1ch A1SJ71QC24N1 RS-232 :1ch...

  • Page 14: General Precautions

    INTRODUCTION 1.2 General Precautions (1) Utilizing AnS/QnAS series sequence programs in L series systems AnS/QnAS series sequence programs can be converted for the use in L series systems using GX Developer. (Note that, with GX Works2, these programs cannot be converted.) To convert AnS/QnAS series sequence programs and utilize them in L series systems, use GX Developer.

  • Page 15: List Of Serial Communication Modules To Be Replaced

    SERIAL COMMUNICATION MODULE REPLACEMENT SERIAL COMMUNICATION MODULE REPLACEMENT 2.1 List of Serial Communication Modules to be Replaced (1) AnS series AnS series L series alternative model Remarks A1SJ71UC24-R2 RS-232: 1ch, RS-422/485: None LJ71C24 LJ71C24 RS-232: 1ch, RS-422/485: 1ch A1SJ71UC24-R2 A1SJ71UC24-R2 RS-232: 1ch, RS-422/485: None LJ71C24-R2 LJ71C24-R2...

  • Page 16: Performance Specifications Comparison

    SERIAL COMMUNICATION MODULE REPLACEMENT 2.2 Performance Specifications Comparison 2.2.1 Module performance comparison (1) Between AnS series and L series (a) A1SJ71UC24-R2 : Compatible, : Partial change required, ×: Incompatible Specifications AnS series L series Precautions for Item Compatibility replacement LJ71C24 A1SJ71UC24-R2 LJ71C24-R2 LJ71C24: 1ch...
  • Page 17 SERIAL COMMUNICATION MODULE REPLACEMENT Specifications AnS series L series Precautions for Item Compatibility replacement LJ71C24 A1SJ71UC24-R2 LJ71C24-R2 Communication 1:1, 1:n, m:n using dedicated (n: max. 32, m+n: max. 32) protocol Nonprocedural For details on linked 1:1, 1:n, or n:1 (n: max. 32) Line communication operation between...
  • Page 18 SERIAL COMMUNICATION MODULE REPLACEMENT (b) A1SJ71UC24-R4 : Compatible, : Partial change required, ×: Incompatible Specifications Precautions for Item AnS series L series Compatibility replacement A1SJ71UC24-R4 LJ71C24 RS-232 RS-232 compliant (9-pin D-sub) Interface RS-422/485 compliant Wiring needs to be RS-422/485 RS-422/485 compliant (2-piece terminal block) changed.
  • Page 19 SERIAL COMMUNICATION MODULE REPLACEMENT (2) Between QnAS series and L series : Compatible, : Partial change required, ×: Incompatible Specifications QnAS series L series Precautions for Item Compatibility replacement A1SJ71QC24N1 LJ71C24 A1SJ71QC24N1-R2 LJ71C24-R2 LJ71C24: 1ch RS-232 RS-232 compliant (9-pin D-sub) LJ71C24-R2: 2ch LJ71C24: 1ch RS-422/485 compliant...
  • Page 20 SERIAL COMMUNICATION MODULE REPLACEMENT Specifications QnAS series L series Precautions for Item Compatibility replacement A1SJ71QC24N1 LJ71C24 A1SJ71QC24N1-R2 LJ71C24-R2 Communication 1:1, 1:n, m:n using dedicated (n: max. 32, m+n: max. 32) protocol Nonprocedural protocol 1:1, 1:n (n: max. 32) 1:1, 1:n, or n:1 (n: max. 32) For details on linked Line communication...

  • Page 21: Cable Specifications Comparison

    SERIAL COMMUNICATION MODULE REPLACEMENT 2.2.2 Cable specifications comparison (1) Between AnS series and L series : Compatible, : Partial change required, ×: Incompatible Specifications AnS series L series Precautions for Item Compatibility replacement A1SJ71UC24-R2 LJ71C24 A1SJ71UC24-R4 LJ71C24-R2 Cable Use a cable that is compliant with the RS-232 standard. Cable length Max.
  • Page 22 SERIAL COMMUNICATION MODULE REPLACEMENT (2) Between QnAS series and L series : Compatible, : Partial change required, ×: Incompatible Specifications QnAS series L series Precautions for Item Compatibility replacement A1SJ71QC24N1 LJ71C24 A1SJ71QC24N1-R2 LJ71C24-R2 Cable Use a cable that is compliant with the RS-232 standard. Cable length Max.

  • Page 23: Functional Comparison

    SERIAL COMMUNICATION MODULE REPLACEMENT 2.3 Functional Comparison (1) Between AnS series and L series : Compatible, : Partial change required, ×: Incompatible Description AnS series L series Item Compatibility Precautions for replacement Reference A1SJ71UC24-R2 LJ71C24 A1SJ71UC24-R4 LJ71C24-R2 The applicable commands, accessible device ranges, and access to another station are Device memory Reads/writes CPU module data from/to...
  • Page 24 SERIAL COMMUNICATION MODULE REPLACEMENT (2) Between QnAS series and L series : Compatible, : Partial change required, ×: Incompatible Description QnAS series L series Item Compatibility Precautions for replacement Reference A1SJ71QC24N1 LJ71C24 A1SJ71QC24N1-R2 LJ71C24-R2 Communication Performs communications in dedicated in ASCII mode protocol using ASCII data.

  • Page 25: Switch Setting Comparison

    SERIAL COMMUNICATION MODULE REPLACEMENT 2.4 Switch Setting Comparison (1) Between AnS series and L series (a) A1SJ71UC24-R2 : Compatible, : Partial change required, ×: Incompatible Description AnS series L series Precautions for Switch name Compatibility Reference replacement LJ71C24 A1SJ71UC24-R2 LJ71C24-R2 The mode of each interface is set according to the data communication function to be used.
  • Page 26 SERIAL COMMUNICATION MODULE REPLACEMENT (b) A1SJ71UC24-R4 : Compatible, : Partial change required, ×: Incompatible Description AnS series L series Precautions for Switch name Compatibility Reference replacement LJ71C24 A1SJ71UC24-R4 LJ71C24-R2 The mode of each interface is set according to the data communication function to be used.
  • Page 27 SERIAL COMMUNICATION MODULE REPLACEMENT (2) Between QnAS series and L series : Compatible, : Partial change required, ×: Incompatible Description QnAS series L series Precautions for Switch name Compatibility Reference replacement A1SJ71QC24N1 LJ71C24 A1SJ71QC24N1-R2 LJ71C24-R2 The mode of each interface is set according to the data communication function to be used.

  • Page 28: Program Comparison

    SERIAL COMMUNICATION MODULE REPLACEMENT 2.5 Program Comparison 2.5.1 I/O signal comparison (1) Between AnS series and L series I/O signal assignments are incompatible between AnS series and L series. Create a new sequence program. : Compatible, : Partial change required, ×: Incompatible Signal name AnS series Input signal...
  • Page 29 SERIAL COMMUNICATION MODULE REPLACEMENT (2) Between QnAS series and L series : Compatible, : Partial change required, ×: Incompatible Signal name QnAS series L series Precautions for Device number Compatibility replacement A1SJ71QC24N1 LJ71C24 A1SJ71QC24N1-R2 LJ71C24-R2 Transmission ended normally Transmission normal completion Transmission ended abnormally Transmission abnormal completion Busy performing transmission processing...
  • Page 30 SERIAL COMMUNICATION MODULE REPLACEMENT : Compatible, : Partial change required, ×: Incompatible Signal name QnAS series L series Precautions for Device number Compatibility replacement A1SJ71QC24N1 LJ71C24 A1SJ71QC24N1-R2 LJ71C24-R2 Send request Transmission request Receive data read complete Reception data read completion Remote switching request Mode switching request Use prohibited...

  • Page 31: Buffer Memory Address Comparison

    SERIAL COMMUNICATION MODULE REPLACEMENT 2.5.2 Buffer memory address comparison (1) Between AnS series and L series Buffer memory address assignments are incompatible between AnS series and L series. Create a new sequence program. The following table lists the default address assignments for the areas used for initial setting and data communications.
  • Page 32 SERIAL COMMUNICATION MODULE REPLACEMENT (2) QnAS series The following table lists the default address assignments for the areas used for initial setting and data communications. : Compatible, : Partial change required, ×: Incompatible Address Name QnAS series L series Precautions for Compatibility replacement Hexadecimal...
  • Page 33 SERIAL COMMUNICATION MODULE REPLACEMENT : Compatible, : Partial change required, ×: Incompatible Address Name QnAS series L series Precautions for Compatibility Hexadecimal Decimal replacement A1SJ71QC24N1 LJ71C24 A1SJ71QC24N1-R2 LJ71C24-R2 CH1 Send/receive buffer memory CH1 Transmission/receive area 1024 Send data count designation Transmission data count designation 1025 Send data designation...

  • Page 34: Reuse Of Existing Programs

    SERIAL COMMUNICATION MODULE REPLACEMENT 2.6 Reuse of Existing Programs 2.6.1 Reuse of AnS series programs Data communications between the CPU module and external devices and between CPU modules that have been performed by the AnS series computer link modules can also be performed using the L series serial communication modules.

  • Page 35: Reuse Of Qnas Series Programs

    SERIAL COMMUNICATION MODULE REPLACEMENT External devices can access only the device memory in the CPU module. The accessible device range is the same as that of the AnS series CPU module. The following devices cannot be accessed from external devices: •...

  • Page 36: Other Precautions

    SERIAL COMMUNICATION MODULE REPLACEMENT 2.7 Other Precautions This section describes other precautions for module replacement. (1) Processing time The processing time for data communications differs between the AnS/QnAS series and L series modules. For this reason, some data communications timing may be also different. Adjust the timing by inserting a waiting time, as needed.

  • Page 37: Program Examples

    SERIAL COMMUNICATION MODULE REPLACEMENT 2.8 Program Examples This section provides modification examples of the nonprocedural communications program for the AnS series computer link module to the one for L series serial communication module. Program modification is required when replacing AnS series programmable controller systems with L series programmable controller systems.
  • Page 38 SERIAL COMMUNICATION MODULE REPLACEMENT (a) When application instructions (FROM/TO) are used Transmission processing Write No. of send data. Send Module Transmission Send enable ready complete request flag signal Write send data. Send data Perform send request. Send request Turn off the send request Send Transmission signal upon transmission...
  • Page 39 SERIAL COMMUNICATION MODULE REPLACEMENT (b) When dedicated instructions (PRN/INPUT) are used Transmission processing Send Module Transmission Send enable ready complete request flag signal Specify the module's head I/O signal. Specify No. of send data. Specify send data. Send data Specify a device by which execution completion can be Transmission complete...
  • Page 40 SERIAL COMMUNICATION MODULE REPLACEMENT (2) Program example of L series serial communication module CPU module LJ71C24 Buffer memory Send Address enable Data sending Data writing flag Personal OUTPUT Send request computer Send completion Read request Buffer memory Address Data reading INPUT Data receiving Read completion...
  • Page 41 SERIAL COMMUNICATION MODULE REPLACEMENT Transmission processing Specify channel No. for data transmission. Interface Send enable flag Clear the device where the transmission result is stored. Transmission result Specify No. of send data. No. of send data (Instruction execution) Data stored in the area starting Send Transmission Interface...
  • Page 42 SERIAL COMMUNICATION MODULE REPLACEMENT Reception processing Specify channel No. for data Interface CH1 read reception. request Clear the device where the reception result is stored. Reception result reception error detection Specify allowable No. of receive Allowable No. of data. receive data (Instruction execution) Receive data are stored in the Reception...

  • Page 43: Chapter 3 External Dimensions

    EXTERNAL DIMENSIONS EXTERNAL DIMENSIONS For external dimensions of modules described in this handbook, refer to the user's manual for each module. For external dimensions of base units for the MELSEC-AnS/QnAS (small type) series, refer to the following. Transition target Handbook Manual number AnS/QnAS Transition from MELSEC-AnS/QnAS (Small Type) Series...
  • Page 44 EXTERNAL DIMENSIONS Memo...

  • Page 45: Appendices

    APPENDICES Appendix 1 Spare Parts Storage (1) The general specifications of programmable controllers are as follows. Please do not store spare parts under a high temperature or high humidity condition, even within the range guaranteed by the specifications. Storage ambient temperature -20 to 75°C Storage ambient humidity 10 to 90%, no condensation...

  • Page 46: Appendix 2 Relevant Manuals

    Appendix 2 Relevant Manuals Appendix 2.1 Replacement handbooks (1) Transition guides Transition target Manual name Manual number A (large) AnS (small) MELSEC-A/QnA Series Transition Guide L-08077E × MELSEC-AnS/QnAS Series Transition Guide × (2) Transition handbooks Transition target Manual name Manual number A (large) AnS (small) Transition from MELSEC-A/QnA (Large Type) Series to Q Series Handbook...

  • Page 47: Appendix 2.2 Ans Series

    Appendix 2.2 AnS series Model Manual name Manual number code Computer Link Module Guidebook SH-3510 13JE76 Computer Link Module (Com. link func./Print. func.) User's Manual SH-3511 13JE77 Computer Link Module (Multidrop function) User's Manual BCN-P5677 Type A1SD51S Intelligent communication module User's Manual IB-66551 13JE90 AD51H-BASIC Programming Manual (Command)
  • Page 48 6. Failure caused by reasons unpredictable by scientific technology standards at time of shipment from Mitsubishi. 7. Any other failure found not to be the responsibility of Mitsubishi or that admitted not to be so by the user. 2. Onerous repair term after discontinuation of production (1) Mitsubishi shall accept onerous product repairs for seven (7) years after production of the product is discontinued.

This manual is also suitable for:

Melsec-qnas seriesMelsec l series

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